The Ultimate Commercial Hand Sink Buying Guide

Few things get a restaurant owner's heart racing like an unexpected visit from the health inspector. You might have your food temps and storage on lock, but a common trip-up is surprisingly simple: your handwashing stations. A dedicated commercial hand sink is not just a suggestion, it is a non-negotiable fixture under the FDA Food Code and every US state and local health code. Using the wrong type, or not having enough sinks in the right places, can lead to serious fines or even a shutdown. This guide walks you through the specific rules, features, dimensions, and placement requirements so you feel confident and prepared for any inspection.

This is the most complete guide to commercial hand sinks on the web. We cover ServSafe and FDA Food Code requirements, dimensions and mounting height, hands-free faucets, ADA compliance, portable and mobile hand wash stations for food trucks, splash guards, signage, installation, and where to buy. If you came here for a quick answer, the short version is: every food prep area needs at least one stand-alone commercial hand sink with hot and cold water above 100 degrees F, soap, paper towels, a waste receptacle, and clear unobstructed access.

Quick links to the most-popular in-stock units: 14-inch Atosa wall-mount ($231), 18-inch Atosa wall-mount ($231), 12-inch wrist-blade hand sink ($140), 17-inch dual splash guard model ($189), 2-pack BK Resources deck-mount ($599), and 4-pack BK Resources deck-mount ($799.99). Or browse the full commercial hand sinks collection and commercial faucets to pair the bowl with the right mixing valve.

What Is a Commercial Hand Sink?

A commercial hand sink (also called a hand wash sink, handwash sink, handwashing sink, or commercial hand washing sink) is a dedicated NSF-listed fixture used exclusively for washing hands in a regulated foodservice, healthcare, or industrial facility. It is built from 18-gauge or heavier 304 stainless steel, has a single shallow bowl sized for hand washing only, and is supplied with hot and cold water blended through a mixing valve so the rim temperature reaches at least 100 degrees F. Unlike a household sink or a prep sink, a commercial hand wash sink cannot be used for food prep, dish washing, mop water, or filling buckets. It is reserved exclusively for hand washing.

The terms hand sink, hand wash sink, hand-washing sink, handwash sink, and handwashing sink all refer to the same fixture in different US health codes. Whatever you call it, the rules are the same: dedicated use, hot water, soap, towels, waste receptacle, unobstructed access.

Why Every Commercial Kitchen Needs a Dedicated Hand Sink

Handwashing is the single most effective barrier against foodborne illness in a commercial kitchen. The FDA Food Code requires every regulated foodservice operation to install at least one dedicated commercial handwashing sink in every food prep area, in or adjacent to every restroom, inside every bar service area, and within reasonable walking distance of every dishwashing station and cook line. Using a prep sink, 3-compartment sink, or mop sink for hand washing is a critical violation in nearly every US jurisdiction. A dedicated hand wash sink keeps the soap, paper towels, and waste receptacle in one place and trains staff to wash hands the same way every time.

ServSafe and FDA Food Code Requirements for Hand Sinks

ServSafe certification trains food handlers and managers on the exact handwashing sink rules used in the FDA Food Code. Here is what you need to know to pass an inspection.

Minimum Water Temperature

The water provided to a handwashing sink must be tempered through a mixing valve or combination faucet to reach at least 100 degrees F (38 degrees C) at the spout. Some local jurisdictions allow up to 110 degrees F. A single-tap cold-only or hot-only faucet does not meet code. The minimum temp for a handwashing sink is the same whether the sink is in a kitchen, restroom, bar, food truck, or outdoor event booth.

What Must Be Supplied at Every Handwashing Sink

The handwashing sink must be supplied with the following items at the start of every shift, every day:

• Hot and cold running water at 100 degrees F or higher
• Soap (liquid, foam, or bar)
• A means to dry hands: paper towels, single-use cloth towels, or a hand dryer
• A waste receptacle for used paper towels
• A handwashing reminder sign (required in many jurisdictions; recommended everywhere)

The following items are required at every handwashing sink in nearly every US jurisdiction: warm water, soap, towels, and a waste receptacle. A handwashing sink without one of these supplies is not considered stocked and is a critical health code violation.

Dedicated Use Only

A handwashing sink may be used for washing hands and only washing hands. It cannot be used for food prep, washing produce, washing dishes, filling water buckets, dumping mop water, or rinsing utensils. The handwashing sink may be used for washing hands and nothing else. This is one of the most common health code violations in the US foodservice industry, and it is one of the easiest to fix: post a clear sign and train staff.

Where to Locate Handwashing Sinks

Handwashing sinks should be located in every food prep area, in or immediately adjacent to every restroom, in every bar service area, and within reasonable walking distance (usually interpreted as 25 feet or less) of every cook line, prep station, and dish area. Which area is required to have a handwashing sink? Any area where staff handle food, dishes, or money. The sink must be unobstructed: no carts, trash cans, racks, or food containers blocking access.

How Many Hand Wash Sinks Are Required in a Commercial Kitchen?

How many hand wash sinks in a commercial kitchen? Most US codes require at least one dedicated commercial hand wash sink per food prep area, one in or adjacent to every restroom, one inside any bar service area, and one at any dish station that is more than 25 feet from the nearest prep hand sink. Larger kitchens typically install one hand sink for every 4 to 6 line cooks plus one in every dish pit. Always confirm the exact count with your local health department.

If the Handwashing Sink Is Unavailable, What Should You Do?

If the only handwashing sink in your area is broken, blocked, or out of supplies, stop any work that requires bare-hand contact with ready-to-eat food until the sink is back in service. Notify the manager on duty, post the sink out of service with a paper sign, and direct staff to the next nearest stocked handwashing sink. Document the outage and the repair. This documentation protects you from a critical violation if an inspector arrives during the outage.

What Valve Is Required for a Handwashing Sink?

A handwashing sink must be supplied through a mixing valve or combination faucet that blends hot and cold water to deliver at least 100 degrees F at the spout. A single-tap cold-only or hot-only faucet does not meet code. Many jurisdictions also require the valve to be hands-free (sensor, knee, or foot operated) in new construction or major remodels. Replacement commercial faucets, mixing valves, and gooseneck spouts are stocked.

Can a Handwashing Sink Be Used for Food Preparation?

No. A handwashing sink cannot be used for food preparation, washing produce, thawing meat, or any other food-contact use. Doing so is a critical food safety violation under the FDA Food Code. The same rule applies in reverse: a food prep sink cannot be used for handwashing because it lacks the dedicated soap and paper towel station and is not located where staff need it.

Commercial Hand Sink Dimensions and Mounting Height

Standard commercial hand sink dimensions and mounting height are tightly regulated by health and plumbing codes. Here is the cheat sheet.

Standard Commercial Hand Sink Dimensions

Most stand-alone commercial hand sinks range from 14 inches wide by 10 inches deep on the smallest wall-mount units up to 20 by 16 inches on larger free-standing models. Bowl depth is usually 5 to 7 inches. Common hand sink sizes in US foodservice:

• Compact wall-mount: 14 inches by 10 inches by 5 inches deep (espresso carts, bars, food trucks)
• Standard wall-mount: 17 inches by 15 inches by 7 inches deep (most prep stations)
• Heavy-duty free-standing: 20 inches by 16 inches by 8 inches deep (dish pits, dual stations)
• Corner wall-mount: 17-inch triangular bowl for corner placement

Commercial Kitchen Hand Sink Height

The standard commercial kitchen hand sink height (rim to finished floor) is 30 to 32 inches for non-ADA installations. ADA-compliant installations require the rim no higher than 34 inches with at least 27 inches of clear knee space underneath. Height of commercial hand sink fixtures is also affected by the floor sink or floor drain under the unit, so confirm rough-in before final mount.

Splash Guard Requirements

If the hand sink is mounted within 18 to 24 inches of an exposed food prep surface, ready-to-eat food storage, or clean dish landing area, most local health codes require a side and rear splash guard. Splash guards are stainless steel panels at least 6 inches tall on the sides and back of the bowl. Many wall-mount commercial hand sinks ship with factory side splash guards. Free-standing units often need add-on splash guards purchased separately. Add-on side splash kits: 14-inch side splash pair and 18-inch side splash pair ($84 each). For factory-integrated splash protection on a 17-inch bowl, see the 17-inch hand sink with dual splash guards ($189).

Complete Hand Sinks Collection: Product Comparison Table

The Restaurant Warehouse stocks 16 commercial hand sink configurations in stainless steel: wall-mount, deck-mount, splash-mount, wrist-blade, and multi-pack case options for new build-outs. The table below is the head-to-head technical spec sheet across every unit, with current pricing and link to each product page. Bookmark this for your next health-code planning session.

Product	Brand	Price	Width	Bowl Size	Material / Gauge	Key Feature
Wall Mounted Hand Sink 14"	Atosa	$231	14"	10"x12"x5"	18 ga 304 SS	Standard wall mount
Wall Mounted Hand Sink 18"	Atosa	$231	18"	14"x10"x5"	18 ga 304 SS	Increased width
Side Splash for 14" Sink	Atosa	$84	14"	N/A	18 ga 304 SS	Splash containment (pair)
Side Splash for 18" Sink	Atosa	$84	18"	N/A	18 ga 304 SS	Splash containment (pair)
Hand Sink with Wrist Blade Handles 12"	Atosa	$140	12"	9"x9"x4"	20 ga 304 SS	Wrist blade handles
Hand Sink with Wrist Blades + Side Splashes 12"	Atosa	$173	12"	9"x9"x4"	18 ga 304 SS	Blades and side splashes
Wall Mounted Hand Sink 15"	Atosa	$152	15.75"	10"x12.75"x5"	20 ga 304 SS	Standard wall mount
Hand Sink with Side Splashes 15"	Atosa	$163	15"	10"x12.75"x5"	20 ga 304 SS	Integrated side splashes
Hand Sink 17"	Atosa	$152	17"	14"x10"x5"	20 ga 304 SS	Broad bowl area
Hand Sink with Left Splash Guard 17"	Atosa	$189	17"	14"x10"x5"	20 ga 304 SS	Single left splash guard
Hand Sink with Right Splash Guard 17"	Atosa	$189	17"	14"x10"x5"	20 ga 304 SS	Single right splash guard
Hand Sink with Left & Right Splash Guards 17"	Atosa	$189	17"	14"x10"x5"	20 ga 304 SS	Dual splash protection
2-Pack Deck Mount Hand Sinks	BK Resources	$599	Var	14"x10"	Stainless Steel	Case pack, deck mount
2-Pack Splash Mount Hand Sinks	BK Resources	$599	Var	14"x10"	Stainless Steel	Case pack, splash mount
4-Pack Deck Mount Hand Sinks	BK Resources	$799.99	Var	14"x10"	Stainless Steel	Bulk, deck mount
4-Pack Splash Mount Hand Sinks	BK Resources	$799.99	Var	14"x10"	Stainless Steel	Bulk, splash mount

Understanding Stainless Steel Gauges

The gauge of a stainless steel sink determines structural integrity and resistance to dents or warping over time.

• 18 gauge: approximately 0.0500 inches thick. The preferred choice for heavy-use commercial kitchens as it provides a rigid, durable surface that handles industrial mounting hardware and high-pressure faucets without flexing.
• 20 gauge: approximately 0.0375 inches thick. Slightly thinner but still highly corrosion-resistant. Suitable for secondary handwashing stations or smaller cafe operations where space and weight are considerations.

Type 304 Stainless Steel

All units listed use Type 304 stainless steel. The alloy contains high levels of chromium and nickel, making it non-magnetic and exceptionally resistant to oxidation. In a commercial environment where sinks are constantly exposed to water, sanitizers, and soaps, 304 is the industry standard for longevity and sanitation compliance.

Splash Mount vs. Deck Mount

• Splash mount: the faucet is mounted directly to the vertical backsplash of the sink. The design keeps the faucet base off the horizontal deck, making it easier to clean the rim and reducing areas where water can pool.
• Deck mount: the faucet is installed on the flat horizontal surface behind the sink bowl. Often used in drop-in installations or when deeper backsplashes are not available.

Wrist Blade Handles vs. Standard Knobs

Wrist blade handles (usually 4 inches or longer) allow the user to turn water on and off using wrists or elbows, preventing the hands from re-contacting the handles after washing. Many jurisdictions accept wrist blades as a compliant hands-free alternative to sensor or knee-valve operation. The 12-inch hand sink with wrist blade handles and the 12-inch wrist-blade unit with side splashes are the two compact wrist-blade options in stock.

Standard Drain Size

Standard commercial hand sinks use a 1.5-inch IPS (Iron Pipe Size) drain connection with a 3.5-inch basket strainer. This ensures rapid drainage and compatibility with standard commercial P-traps.

Types of Commercial Hand Sinks

There are five common form factors for a commercial hand sink. Pick the one that fits your kitchen layout, code requirements, and budget.

Wall-Mount Commercial Hand Sinks

The most common type. A commercial hand sink wall mount uses a heavy stainless steel hanger bracket bolted to wall blocking. The compact footprint saves floor space and makes cleaning underneath the unit easy. Most wall-mount hand sinks include factory side splash guards, a gooseneck faucet, and a basket strainer drain. Standard wall-mount sizes range from 14 by 10 to 20 by 16 inches.

Free-Standing Commercial Hand Wash Sinks

A free standing commercial hand wash sink rests on a 4-leg stainless steel base with adjustable feet, similar to a small prep table. Use these where wall blocking is not practical or where you need a movable handwashing station for a remodel. Free-standing models often have larger bowls (20 by 16 inches and up) and integrated splash guards on all sides.

Drop-In Commercial Hand Sinks

A commercial drop in hand sink installs into a cutout in a stainless steel countertop or work table. Common sizes are 10-inch, 12-inch, and 8-inch drop-in bowls. Drop-in hand sinks are popular at host stands, bar service areas, espresso carts, and any location where the sink needs to disappear into a finished counter.

Corner Commercial Hand Sinks

A corner wall-mount hand sink has a triangular bowl that fits into a 90-degree corner. Use these where floor space is tight (small kitchens, walk-up service windows, food trucks) and you cannot give up a full linear wall section.

Combination Hand Sink + Mop Sink Stations

Some manufacturers offer combination units that put a small handwashing bowl above a floor-mount mop sink. These are useful in tight back-of-house spaces. The hand and mop sinks must remain functionally separate (you cannot dump mop water into the hand sink) but they can share a wall location. See our mop sinks guide for the full mop-sink rules.

Hands-Free Commercial Hand Sinks

A commercial hands free sink uses a knee-operated valve, foot-operated valve, or electronic sensor faucet to start water flow with no hand contact on the spout or handles. Hands-free operation reduces cross-contamination because staff do not touch the faucet with dirty hands before washing or with clean hands after washing.

Knee-Operated Hand Sinks

A commercial hand wash sink knee control uses a horizontal bar mounted under the front apron of the sink. Press the bar with your knee or thigh to start water flow. Release to stop. Knee-operated valves are durable, easy to clean, and popular in high-volume kitchens.

Foot-Operated Hand Sinks

Foot-operated hand sinks use one or two pedal valves on the floor in front of the sink. Press with your toe to run water. Two-pedal designs let you blend hot and cold by holding both pedals. Popular in dish areas where staff hands are always full.

Sensor-Operated (Electronic) Hand Sinks

A commercial hands free sink faucet with an infrared sensor turns water on automatically when hands break the beam. Most sensor faucets are battery-powered (4 to 6 AA batteries last about a year) or hardwired to 110-volt AC. Sensor faucets are the most hygienic option but also the most expensive and the most likely to need service over time.

ADA-Compliant Commercial Hand Sinks

A commercial ada hand sink has a rim no higher than 34 inches from the finished floor, at least 27 inches of clear knee space underneath, insulated supply lines and drain pipes so seated users cannot burn their legs, and hands-free or single-lever faucet operation. ADA-compliant hand sinks are required in any public-accessible handwashing area in new construction or major remodels. Many manufacturers offer ADA versions of their standard 17-by-15 and 20-by-16 hand sinks at a small price premium.

Portable and Mobile Handwashing Sinks for Food Trucks and Outdoor Events

A portable handwash sink (also called a portable handwashing sink or mobile hand wash station) is a self-contained unit with onboard fresh water tank, gray water tank, 12-volt or 110-volt water pump, and a built-in electric water heater that holds water at 100 degrees F or higher. Portable sinks are required in food trucks, concession trailers, catering operations, pop-up vendors, farmers markets, and outdoor events where permanent plumbing is not available.

Portable Handwashing Sink with Hot Water

A portable handwashing sink with hot water uses an onboard electric or LP-gas water heater to bring tank water above 100 degrees F. Look for NSF-listed units with at least a 5-gallon fresh water tank for small carts (espresso, hot dog, kettle corn) and 10 to 20 gallons for full food trucks. A 5 gallon fresh water tank for handwashing sink is the typical minimum for the smallest mobile vendor permits.

Food Service Handwashing Sink Requirements for Mobile Units

Mobile food unit codes typically require a dedicated portable hand sink in addition to the 3-compartment warewashing sink. Both sinks must have hot and cold running water at 100 degrees F or higher, soap, paper towels, and a waste receptacle. See our 3-compartment sink guide for the full mobile food unit sink setup.

FSA-Approved Portable Handwash Stations for Outdoor Events

For outdoor events, county fairs, festivals, and pop-up catering, look for FSA-approved or local-health-department-approved portable handwash stations. The unit must have a fresh tank at least twice the gray tank capacity, a foot pump or sensor faucet, and the same soap-towel-waste setup as any indoor sink.

Handwashing Sink Signs and Labels

Most local health codes require a handwashing reminder sign posted at every commercial hand sink. The handwashing sink only sign typically reads something like "Wash Hands" or "Employees Must Wash Hands Before Returning to Work" in English plus the local secondary language (Spanish in most US markets). NSF-listed signs are usually 5 by 7 inches or larger with high-contrast lettering. A handwashing sink sign is one of the cheapest and easiest ways to head off a critical violation during inspection.

Sizing a Water Heater for a Hand Sink

The water provided to a handwashing sink must reach at least 100 degrees F at the spout. In long buildings with the water heater far from the hand sink, that means either upsizing the central heater or adding a point-of-use under-counter unit at the sink itself.

Point-of-Use Electric Water Heaters

A 2.5 to 4 kW under-counter electric water heater (2.5 to 4 gallon tank) sits under the sink, plugs into a dedicated 120-volt or 240-volt circuit, and keeps water at 110 to 120 degrees F. The mixing valve on the faucet blends that hot water with cold to deliver 100 degrees F at the rim. Point-of-use heaters solve the long-run cooling problem and are cheaper than re-piping the building.

Booster Heaters and Tempering Valves

For a kitchen with one central water heater and multiple hand sinks far from the heater, an in-line booster (a small additional electric heater on the cold-shoulder branch) plus a master tempering valve at the heater can keep every hand sink at 100 to 110 degrees F without scalding risk. Set the master tempering valve to 120 degrees F maximum and let the faucet mixer trim from there.

Onboard Heaters for Portable Hand Sinks

Portable handwashing sinks (food trucks, concession trailers, outdoor events) use an onboard 1.5 to 3.5 kW electric water heater or a small LP-gas tankless heater. The heater pulls from the fresh water tank and stages 100 to 110 degree F water for the faucet. Recovery time on a 10-gallon fresh tank ranges from 20 to 40 minutes depending on heater wattage.

State and Local Code Notes

Health code requirements for commercial hand sinks are set by each state and adopted (with local amendments) by counties and cities. The FDA Food Code is the federal template, but actual enforcement happens at the state and local level. Here are a few state-level notes worth knowing.

California

California Retail Food Code (CalCode) requires a handwashing sink in every food prep area, a separate hand sink in every restroom, and hot water at 100 degrees F minimum. Mobile food units in California require a 5-gallon fresh tank minimum with the gray tank at least 50 percent larger than the fresh tank.

New York

New York State Sanitary Code Part 14 requires handwashing sinks within 25 feet of every food prep, cook, and dish area. New York City Department of Health adds a posted handwashing sign requirement and a 110 degree F minimum water temperature on new installations.

Texas

Texas Food Establishment Rules require dedicated hand sinks in food prep, restrooms, and bar service areas. Mobile food units in Texas typically require a 5-gallon fresh water tank minimum with a gray tank at least 1.5 times the fresh tank capacity.

Florida

Florida Administrative Code Chapter 64E-11 requires hand sinks in food prep areas, restrooms, and bar service areas. Florida also requires a posted handwashing sign in English and Spanish in many counties.

Washington State

WAC 246-215 requires hand sinks at 100 degrees F minimum, within 25 feet of every food prep and dish area. Seattle-King County Public Health adds a sensor or knee-operated faucet recommendation (not a strict requirement yet) on new installations.

This list is illustrative, not exhaustive. Always confirm the exact requirements with your local health department before final layout and installation.

Handwashing Sink Signs: What They Should Say

A handwashing sign at every commercial hand sink is required in most US jurisdictions and recommended everywhere. The handwashing sink sign must be readable from at least 5 feet away and posted directly above or next to the sink.

Required Sign Text

Most local codes require some version of: "Employees Must Wash Hands Before Returning to Work" or "Wash Hands" in English plus the local secondary language (Spanish in most US markets). Some jurisdictions also require the sign to show the 20-second wash time and the wet-soap-scrub-rinse-dry sequence as a graphic.

Recommended Sign Format

NSF-listed handwashing signs are 5 by 7 inches or larger, with high-contrast lettering (black on white or white on red). Vinyl decals adhere to walls and stainless steel without leaving residue. Metal or plastic signs are more durable in wet areas. Keep one spare sign in storage for replacement.

What a Handwashing Sink Only Sign Means

A "handwashing sink only" sign is a stronger version that tells staff and inspectors the basin is reserved for hand washing and nothing else. Some jurisdictions require this exact wording on every dedicated hand sink to head off misuse for dish washing or prep.

Commercial Hand Sink Faucets and Parts

The faucet on a commercial hand sink takes more daily abuse than almost any other faucet in the kitchen. Pick the right one.

Gooseneck vs. Standard Spouts

A gooseneck spout (8 to 12 inches tall) gives more clearance for staff to fit hands and forearms under the water. A standard 4-inch low spout is fine for small sinks but limits hand washing technique. Most commercial kitchens specify gooseneck spouts on every hand sink.

Single-Lever vs. Two-Handle

A single-lever faucet (one handle blends hot and cold) is easier for staff to use with one hand busy or wet. Two-handle faucets give finer temperature control but require two hands to adjust. ADA-compliant installations require single-lever or hands-free operation.

Commercial Hand Sink Faucet Parts

Common replacement parts include cartridges, washers, aerators, sensor batteries (for electronic faucets), knee-valve springs, and gooseneck swivel seals. Stock a small spare-parts kit on-site to keep the hand sink running through a busy shift. Browse our commercial faucets collection for replacement units and parts.

Commercial Hand Sink Installation

Commercial hand sink installation requires solid wall blocking (typically 2x6 lumber inside the wall behind the hanger bracket), a properly sized P-trap and indirect waste line to a floor sink, hot and cold supply stubs, a mixing valve rated for at least 100 degrees F, and code-compliant venting. Most jurisdictions require a licensed plumber for final connections. The operator can do prep work like installing wall blocking and rough-in framing.

Indirect Waste Required in Most Codes

Many jurisdictions require the hand sink drain to discharge through an air gap into a floor sink, not directly into the sanitary line. This indirect waste prevents back-siphonage of sewer water into the bowl. Confirm with your local plumbing inspector before final connection.

How to Install Commercial Hand Sink (Quick Steps)

The basic steps are: (1) confirm health and plumbing code requirements with your local jurisdiction; (2) install solid wall blocking at the correct mounting height; (3) rough in hot and cold supply lines and the drain stub; (4) hang the hanger bracket and lift the sink into place; (5) connect the faucet, P-trap, and supply lines; (6) test for leaks and temperature; (7) install soap, paper towel, and waste receptacle within reach of the sink. A licensed plumber typically handles steps 3 through 6.

Materials and Build Quality

Most commercial hand sinks are built from 18-gauge or 16-gauge 304 stainless steel. Heavier gauges (lower gauge number) hold up longer to daily abuse. 304 stainless resists rust and acid better than 430 stainless. Look for fully welded seams (no exposed lap joints), rolled edges (no sharp lip), and an NSF mark on the bowl or apron.

Stainless Steel Commercial Hand Wash Sinks

A stainless steel commercial hand wash sink is the only material rated for foodservice use in nearly every US jurisdiction. Plastic and porcelain hand sinks are not NSF-listed for commercial kitchens. 304 grade with brushed (#4) finish is the standard.

Heated Hand Washing Sinks for Mobile Units

A commercial grade hand wash sink heater (built-in electric or LP-gas water heater) is required on portable and mobile units. Onboard heaters typically range from 1.5 to 3.5 kW and bring 10 gallons from cold to 110 degrees F in 20 to 40 minutes.

Used and Second-Hand Commercial Hand Sinks

You can buy a quality second hand commercial sink at restaurant auctions, dealer trade-ins, and online resale platforms. Inspect a used commercial hand sink for:

• Cracked or pitted bowl surface
• Bent or damaged hanger bracket and legs
• Functional faucet with at least 100 degree F temperature
• Working drain with no leaks
• NSF mark still legible
• Visible code stamp for the local jurisdiction

Second hand commercial stainless steel sinks can save 30 to 60 percent vs. new but expect to spend on a new faucet and freight. For most operators, the cost-per-year on a new NSF-listed hand sink is lower over a 10-year life.

Other Essential Sinks for a Commercial Kitchen

A hand sink is one of the four sink types every commercial kitchen needs. The other three are the 3-compartment warewashing sink, the mop sink (janitorial sink), and the prep sink. Each has a dedicated use and cannot be substituted for the others.

• 3-Compartment Sink Guide: for manual dish washing, wash-rinse-sanitize cycle
• 2-Compartment Sinks: for bar setups and tight prep areas
• 1-Compartment Sinks (Prep Sinks): for produce washing, thawing, soaking
• Commercial Faucets and Pre-Rinse Units: for every sink in the building

Browse the full commercial sinks collection for every category in one place.

Hand Sink Cleaning and Daily Maintenance

A commercial hand sink is the first thing a health inspector touches when they walk into your kitchen. Keep it spotless.

Daily Cleaning Routine

Wipe the bowl, faucet, splash guards, and apron with a foodservice-safe stainless steel cleaner at the end of every shift. Empty the paper towel waste receptacle. Restock soap and towels for the next shift. Check the drain for slow flow.

Weekly Deep Clean

Pull the drain strainer and clear any debris. Wipe down the underside of the sink, the hanger bracket, and the supply lines. Inspect the faucet for drips or play in the handles.

Monthly Faucet and Drain Service

Unscrew the faucet aerator and soak it in white vinegar overnight to dissolve limescale. Inspect the P-trap and indirect waste line. For sensor faucets, check the battery indicator (replace at 25 percent or lower).

Hand Sink Buying Checklist

Before you place an order, run through this checklist:

• Code: confirmed NSF-listed and accepted by your local health department
• Form factor: wall-mount, free-standing, drop-in, corner, or combo
• Bowl size: matched to your space (compact 14 by 10 to heavy-duty 20 by 16)
• Material: 304 stainless steel, 18 gauge or heavier
• Mounting height: 30 to 32 inches standard, 34-inch max for ADA
• Faucet: gooseneck spout, mixing valve to 100 degrees F, hands-free if required
• Splash guards: included or available as add-on
• Drain: indirect waste compatible
• Soap, paper towel, and waste receptacle planned for the wall next to the sink
• Signage: handwashing reminder sign included or sourced separately
• Installation budget: licensed plumber for final connections

Common Hand Sink Problems and Fixes

Water Will Not Reach 100 Degrees F

Check the mixing valve setpoint, the building hot water supply temperature, and the supply line insulation. Many older buildings deliver hot water at 110 degrees F at the heater but only 95 degrees F at the sink due to long uninsulated runs. A point-of-use under-counter water heater (1.5 to 4 kW electric) is the standard fix.

Sensor Faucet Stops Working

For battery-powered sensor faucets, replace the AA batteries first (most last 9 to 14 months). For hardwired units, check the 24-volt transformer and solenoid valve. Clean the sensor lens with a soft cloth to remove water spots and soap residue.

Slow Drain or Standing Water

Pull the drain strainer and clear food debris. If the slow flow persists, remove the P-trap and rinse out grease and paper towel pieces. Avoid chemical drain cleaners on stainless steel and on rubber gaskets in the drain kit.

Knee Valve Leaks or Sticks

The most common failure is the spring or the seat washer in the knee valve. Replacement kits are available. Sticking is usually grease buildup; clean with a foodservice-safe degreaser.

Soap or Paper Towel Dispenser Empty

Add a stocking check to the start-of-shift opening checklist. A handwashing sink without soap or towels is not stocked and is a critical violation. Keep a backup supply within 20 feet of the sink.

Real Kitchen Layouts: Where Hand Sinks Go

Theory is fine, but the real test is fitting hand sinks into a working layout. Here are five common kitchen footprints and how the hand sinks typically work.

Full-Service Restaurant (2,500 sq ft kitchen, 6-station line)

One hand sink at the start of the cook line (between expediter and saute), one at the end of the line near the dish window, one in the prep area between produce and protein stations, one in the dish pit, one in the dry storage and receiving area, and one in or adjacent to each restroom. That is six total dedicated commercial hand sinks for a typical mid-size restaurant, plus one portable backup. The cost premium for a sixth sink is small compared to a critical violation.

Quick-Service Restaurant (1,200 sq ft kitchen, 3-station line)

One hand sink between order takeoff and the assembly station, one in the back-of-house prep area, one in the dish pit if separate, and one in or near the restroom. Three to four total. Sensor faucets are popular here because team turnover is high and the hands-free operation reduces training.

Coffee Shop or Espresso Cart (400 sq ft service area)

One compact (14 by 10) commercial hand sink behind the bar, one in or near the restroom, and a portable handwash sink for any outdoor event use. Drop-in hand sinks are common here because the bar counter is finished casework and a wall-mount unit would look out of place.

Food Truck (200 sq ft mobile)

One portable hand sink with onboard 5 to 10 gallon fresh water tank and a built-in water heater that holds 100 degrees F or higher, plus a separate 3-compartment warewashing sink for dishes. The hand sink and dish sink cannot share a basin even in a mobile unit.

Catering Kitchen or Commissary (3,000 sq ft)

Hand sinks at every workstation (typically 5 to 8), one at the loading dock for staff arriving from delivery runs, one in receiving, one in each restroom, and one in the office area if food is ever sampled there. Plan one stocked handwashing sink for every 4 to 6 people on shift.

Health Inspector's Hand Sink Compliance Checklist

This is the checklist a typical US health inspector runs through when they walk in. Pre-check every item on this list before you open and you will rarely fail an inspection.

• Is there at least one dedicated handwashing sink in every food prep area?
• Is there a hand sink in or adjacent to every restroom?
• Is there a hand sink in every bar service area?
• Is every hand sink unobstructed (no carts, racks, or trash cans blocking access)?
• Does every hand sink deliver hot water at 100 degrees F or higher at the spout?
• Is soap stocked at every hand sink?
• Are paper towels (or a hand dryer) stocked at every hand sink?
• Is there a waste receptacle within reach of every hand sink?
• Is the handwashing reminder sign posted (if required by local code)?
• Is every hand sink reserved for handwashing only (no food prep, dish washing, or mop water)?
• Are knee, foot, or sensor controls working if installed?
• Is the drain flowing freely with no standing water?
• Are splash guards installed if the sink is within 18 to 24 inches of food prep or clean dish areas?
• Is the mounting height within 30 to 32 inches (or 34 max for ADA)?
• Are supply lines and drain insulated on ADA units?

Top 10 Hand Sink Violations Inspectors Cite

Based on health inspection reports from major US markets, these are the most common commercial hand sink violations:

1. Hand sink used for non-handwashing tasks. Dish washing, food prep, mop water, or bucket filling at a designated handwashing sink is the number one violation in nearly every jurisdiction.
2. Hot water below 100 degrees F. Often caused by long uninsulated supply runs from a remote water heater. Fix with a point-of-use under-counter heater.
3. Sink blocked. Carts, racks, trash cans, or food containers parked in front of the sink. The sink must be unobstructed at all times.
4. No soap, no paper towels, or both. The sink is not stocked. Add a start-of-shift restocking check.
5. No waste receptacle within reach. Many operators forget the trash can. The waste container must be within easy reach of the sink.
6. No handwashing sign. Required in most jurisdictions. NSF-listed signs cost a few dollars.
7. Sink too far from prep area. Most codes require the sink within 25 feet of every food prep, cook line, and dish station.
8. Cracked, pitted, or damaged bowl. A damaged stainless surface harbors bacteria and is a violation.
9. Drain back-siphoning or floor sink flooding. Indirect waste required in most codes. Confirm air gap.
10. Plumbing or mixing valve malfunction. Cold-only flow, hot-only flow, or a dripping faucet that prevents proper water temperature.

How Much Does a Commercial Hand Sink Cost?

Entry-level wall-mount commercial hand sinks start around $200 to $400 for a basic 14-by-10 unit with a manual gooseneck faucet. Mid-range models with side splash guards and a hands-free knee valve run $400 to $700. Heavy-duty 20-by-16 units with sensor faucets and ADA features are $700 to $1,500. Portable hand wash stations with onboard hot water tanks start at $500 and reach $2,500 for fully self-contained mobile units. Add $150 to $400 for licensed plumber installation in most US markets.

Where to Buy Commercial Hand Sinks

Browse our commercial hand sinks collection for wall-mount, free-standing, drop-in, corner, wrist-blade, and combination hand sinks in 12-inch up to 18-inch widths. Most-popular in-stock units:

• 14-inch Atosa wall-mount hand sink - $231, 18-gauge 304
• 18-inch Atosa wall-mount hand sink - $231, 18-gauge 304
• 12-inch hand sink with wrist blade handles - $140
• 17-inch hand sink with dual splash guards - $189
• 2-pack BK Resources deck-mount - $599
• 4-pack BK Resources deck-mount - $799.99

Pair the bowl with one of our commercial faucets (gooseneck, hands-free, sensor, knee, and foot models). We offer free freight on most orders, no membership required, financing available on orders over $2,000, and nationwide shipping. Reach Sean Kearney at (206) 419-5801 or therestaurantwarehouse@gmail.com for layout, sizing, and code questions.

Frequently Asked Questions

What is a commercial hand sink and what makes it different from a regular sink? A commercial hand sink is a dedicated, NSF-listed handwashing-only fixture used in foodservice, healthcare, and other regulated facilities. It is built from 18-gauge or heavier 304 stainless steel, has a single shallow bowl sized for hand washing (not dish washing), comes with a faucet rated for at least 100 degrees F warm water, and is mounted at a fixed height with no obstruction. Unlike a household sink, a commercial hand sink is reserved exclusively for hand washing and cannot be used for food prep, dish washing, or filling buckets.

How many hand wash sinks are required in a commercial kitchen? Most US health codes require at least one dedicated commercial hand wash sink in every food prep area, one in or adjacent to every restroom, one inside any bar service area, and one at any dishwashing station that is more than a few steps from the nearest prep hand sink. Larger kitchens typically install one within 25 feet of every food prep, cook line, and dish area. Always verify the exact count and placement with your local health department before final layout.

What is the minimum water temperature for a handwashing sink? The FDA Food Code and most state codes require water at a commercial hand sink to reach at least 100 degrees F (38 degrees C) at the faucet outlet. Some local jurisdictions allow up to 110 degrees F. The supply must include hot and cold water blended through a mixing valve so the rim temperature is comfortable enough for staff to wash for the full 20 seconds without scalding.

What is required at a handwashing sink? Every stocked handwashing sink must have hot and cold running water that reaches at least 100 degrees F, soap (liquid, foam, or bar), a means to dry hands (paper towels, single-use towels, or a hand dryer), a waste receptacle for paper towels, and a handwashing reminder sign if your jurisdiction requires it. The sink itself must be unobstructed, easily accessible, and used only for handwashing.

Can a handwashing sink be used for food preparation or filling buckets? No. A commercial handwashing sink cannot be used for food prep, dish washing, mop water, or filling buckets. Doing so is a critical food safety violation under the FDA Food Code and most local health codes. The sink must be reserved exclusively for hand washing. If a sink is used for anything else, it is no longer considered a handwashing sink even if it has hot water and soap.

What valve is required for a handwashing sink? A handwashing sink must be supplied through a mixing valve or combination faucet that blends hot and cold water to deliver at least 100 degrees F at the spout. A single-tap cold-only or hot-only faucet does not meet code. Many jurisdictions also require the valve to be hands-free (sensor, knee, or foot operated) in new construction or major remodels.

Where should handwashing sinks be located in a commercial kitchen? Handwashing sinks should be located in every food prep area, in or immediately adjacent to every restroom, in bar service areas, and within reasonable walking distance of every cook line, prep station, and dish area. Most jurisdictions interpret reasonable as 25 feet or less. The sink must be unobstructed: no carts, trash cans, racks, or food containers blocking access.

If the handwashing sink is unavailable, what should you do? If the only handwashing sink in your area is broken, blocked, or out of supplies, stop work that requires bare-hand contact with ready-to-eat food until the sink is restored. Notify the manager on duty, post the sink out of service, and direct staff to the next nearest compliant handwashing sink. Document the issue and any repairs. This protects you from a critical violation if an inspector arrives during the outage.

What is the standard mounting height for a commercial hand sink? The standard mounting height for a commercial hand wash sink is 30 to 32 inches from the finished floor to the rim. ADA-compliant installations require the rim no higher than 34 inches with at least 27 inches of clear knee space underneath. Always confirm the local plumbing and accessibility code before final mounting.

How big is a commercial hand sink? Most stand-alone commercial hand sinks range from 14 inches wide by 10 inches deep on the smallest wall-mount units up to 20 by 16 inches on larger free-standing models. Bowl depth is usually 5 to 7 inches. Compact units (around 14 by 10 inches) are popular for bars, food trucks, and tight prep corners. Larger units are common in main kitchens and dish areas.

What is an ADA-compliant commercial hand sink? An ADA-compliant commercial hand sink has a rim no higher than 34 inches, at least 27 inches of clear knee space underneath, insulated supply lines and drains so seated users cannot burn their legs, and hands-free or single-lever faucet operation. ADA-compliant models are required in any public-accessible handwashing area in new construction or major remodels.

What is a hands-free hand sink? A hands-free hand sink uses a knee-operated valve, foot-operated valve, or electronic sensor to start water flow with no hand contact on the faucet. Hands-free operation reduces cross-contamination because staff do not touch the faucet before or after washing. Many jurisdictions require hands-free faucets on hand sinks in new commercial kitchens.

What is a portable handwashing sink with hot water? A portable handwashing sink is a self-contained unit with onboard fresh water tank, gray water tank, 12-volt or 110-volt water pump, and a built-in electric water heater that holds water at 100 degrees F or higher. Portable hand sinks are required in food trucks, concession trailers, catering operations, pop-up vendors, and outdoor events where permanent plumbing is not available. Capacities range from 5-gallon fresh tanks for small carts up to 20-gallon tanks for larger trailers.

Does a food truck need a separate hand sink? Yes. Almost every US mobile food unit code requires a dedicated handwashing sink in addition to the 3-compartment warewashing sink. The hand sink must have hot and cold running water at 100 degrees F or higher, soap, paper towels, and a waste receptacle. A 5-gallon fresh water tank is the typical minimum, though many states require 10 or 15 gallons. See our 3-compartment sink guide for the full mobile food unit setup.

What is the difference between a hand sink and a prep sink? A commercial hand sink is reserved only for hand washing and must have soap, paper towels, and warm water at 100 degrees F. A prep sink is used for washing produce, thawing food, or rinsing meat and seafood, and it has a dedicated drainboard. The two cannot share a basin. Using a hand sink for prep, or vice versa, is a critical health code violation.

Do I need a splash guard on a commercial hand sink? If the hand sink is mounted within 18 to 24 inches of an exposed food prep surface, ready-to-eat food storage, or clean dish landing area, most local health codes require a side splash guard. Splash guards are stainless steel panels at least 6 inches tall on the sides and back of the bowl to prevent contaminated water from splashing onto food or clean dishware. Many wall-mount hand sinks come with factory splash guards included.

Can I wall-mount a commercial hand sink myself? Wall-mounting a commercial hand sink requires solid blocking inside the wall, a properly sized P-trap and indirect waste line, hot and cold supply stubs, and a mixing valve rated for at least 100 degrees F. Most jurisdictions require a licensed plumber for final connections, though prep work like blocking and rough-in framing can be done by the operator. Always check local plumbing code before starting.

What is the best commercial hand sink for a small kitchen? For a small kitchen, bar, espresso cart, or tight prep corner, look for a 14-inch wide wall-mount stainless steel hand sink with integrated side splash guards and a gooseneck or hands-free faucet. Compact models save floor and counter space while still meeting health code. Free-standing pedestal models are available for kitchens where wall mounting is not practical.

How do I clean and maintain a commercial hand sink? Clean the bowl, faucet, and splash guards daily with a foodservice-safe stainless steel cleaner. Wipe down the soap and paper towel dispensers. Check the drain weekly for slow flow and clear any debris from the strainer. Inspect the faucet aerator monthly for limescale and soak in vinegar to dissolve mineral buildup. Replace the soap and paper towel stock at the start of every shift so the sink is never out of supplies.

Where can I buy a commercial hand sink? Browse our commercial hand sinks collection, commercial faucets, and the full commercial sinks collection. We offer free freight on most orders, no membership required, financing available on orders over $2,000, and nationwide shipping. Reach us at (206) 419-5801 or therestaurantwarehouse@gmail.com.