Three-Compartment Commercial Sink with Dual 18-Inch Drainboards (90-Inch Overall, Three 18x24x14 Bowls, Galvanized Legs)This three-compartment commercial sink pairs three deep 18 by 24 by 14 inch bowls with two 18 inch drainboards in a 90 inch overall foot
This three-compartment commercial sink pairs three deep 18 by 24 by 14 inch bowls with two 18 inch drainboards in a 90 inch overall footprint, giving back-of-house teams a true wash, rinse, and sanitize line plus integrated landing zones on both ends. Overall dimensions are 90 inches wide by 30 inches deep, and 44-1/2 inches tall to the top of the rear backsplash. Each bowl runs front-to-back at 24 inches, which accepts a full-size 18 by 26 inch sheet pan flat with no diagonal angling. The bowls, deck, drainboards, and rear backsplash are formed from a single sheet of 16-gauge stainless steel, fused and polished into a one-piece sanitary unit.
The drainboards are creased and angled toward the bowls so rinse water and pre-wash residue drain directly into the wash bay rather than pooling on the deck. Large radius corners both vertically and horizontally make each bowl easy to wipe down, and all exposed welds are ground smooth and polished to blend into the satin finish on the deck. Each bowl ships with a 3.5 inch drain basket included. Galvanized legs with adjustable ABS bullet feet keep the sink stable on uneven kitchen floors. The unit is NSF listed for commercial foodservice use and carries a 90-day workmanship warranty. Two faucets are required for this sink and are sold separately.
Will call pickup only. Available at 11 US warehouse locations: Los Angeles, San Francisco, Orlando, Chicago, Denver, Dallas, Boston, Newark, Atlanta, Houston, and Cleveland. Need this sink shipped anywhere in the US instead? Order the equivalent BK Resources three-compartment sink with 18x24x14 bowls and dual 18-inch drainboards (BKS-3-1824-14-18T), which is built for nationwide LTL freight and includes BKDR-4 drains.
The 18 by 24 by 14 inch bowl is the standout size for three-compartment sinks that need to handle full-size sheet pans flat. The 24 inch front-to-back depth lets an 18 by 26 inch sheet pan sit flat in the bowl without leaning against the side walls, which is the single most common pain point with smaller 18 by 18 inch bowls. The 14 inch bowl depth lets tall stockpots and 12 by 20 hotel pans sit fully submerged with several inches of water clearance above the rim.
The 18 inch left-to-right bowl width keeps the overall sink length to 90 inches, which fits a wider range of buildouts than a 24 by 24 by 14 three-bay sink. The trade-off versus the 24 by 24 size is that very large pots beyond 18 inches in diameter will not fit in the bowl. For most full-size pan and hotel pan workflows, the 18 by 24 by 14 size is the right balance between bowl capacity and overall wall length.
Each 18 by 24 by 14 inch bowl holds approximately 26 gallons of water at the rim, or about 215 pounds of water at full capacity. With three bowls in line, total water capacity is roughly 78 gallons split into three independent bays for wash, rinse, and sanitize. In practical terms each bowl will accept a full-size 18 by 26 inch sheet pan flat with no diagonal angling, a full-size 12 by 20 hotel pan flat, full-size 18 by 26 cooling racks, and stockpots up to roughly 17 inches in diameter. The 14 inch depth gives enough clearance to fully submerge most sheet pans and tall stockpots without water sloshing over the rear backsplash.
The three bowls, the deck between them, both 18 inch drainboards, and the rear backsplash are drawn from a single sheet of 16-gauge stainless steel. The 16-gauge body is heavier than the 18-gauge stock used on lighter compartment sinks, which gives the sink more rigidity along the long dimension and resists oil-canning and flex on the long drainboards. There are no welded seams along the bowl-to-deck or deck-to-drainboard transitions, so there is no joint for grease, soap residue, or food particles to collect in. All exposed welds at the legs and corners are ground smooth and polished to match the satin finish on the deck. Vertical and horizontal corners are formed with a 3/4 inch radius, which makes each bowl interior easier to wipe down and meets the radius-corner requirements common in NSF and local health code reviews.
Both drainboards measure 18 inches and are creased and angled toward the bowls so water drains back into the wash bay rather than pooling on the deck. The crease pattern keeps rinse water on a controlled path even when staff stage rinsed pans and racks across the full drainboard surface. The drainboards are part of the same one-piece body as the bowls, which means there is no welded seam along the bowl-to-drainboard transition for grease and soap to collect in.
The left drainboard is generally used as the soiled landing zone for items entering the wash sequence, and the right drainboard is used as the clean landing zone for items exiting the sanitize bay. This left-soiled-to-right-clean flow is the standard three-bay protocol in most health code training programs.
Legs are galvanized with adjustable ABS bullet feet that thread up and down for floor leveling. Galvanized legs are the standard leg material on this series and keep the sink at a competitive price point versus stainless-leg alternatives. Galvanized leg finish handles standard kitchen floor conditions and is widely accepted in commercial foodservice installs.
The 22-1/2 inch leg standard puts the deck working height at approximately 33 to 34 inches off the floor with the 14 inch bowl, which is the comfortable working height for a deep-bowl wash setup. Plan adjacent worktable, drainboard table, and dish landing table heights to match.
The rear backsplash is pre-punched for deck-mount faucets on 8 inch centers behind the bowls. Two faucets are required for this sink and are sold separately. Most operators run one deck-mount commercial faucet behind the wash bay and a second behind the rinse bay, leaving the sanitize bay to fill from the rinse bay or from a separate sanitizer dispensing line. Faucet selection depends on preferred spout length, swing radius, and pre-rinse style. A 12 to 14 inch swing spout long enough to swing across two adjacent bowls is a common starting point.
Each bowl ships with a 3.5 inch drain basket included, which is the standard drain size for an 18 by 24 bowl. This is a notable inclusion at this price point and saves operators the cost of buying drains separately. Lever-handle waste valves or rotary-handle drains can be added if the local plumbing code or the operator’s preference requires them, but the included basket strainers will satisfy most standard installs.
| Specification | Value |
|---|---|
| Model Number | SS1824F31D18 |
| Configuration | 3 compartments, dual 18-inch drainboards |
| Overall Length | 90 inches |
| Overall Depth | 30 inches |
| Overall Height | 44-1/2 inches (to top of backsplash) |
| Bowl Size | 18 inches W x 24 inches front-to-back x 14 inches D (each) |
| Number of Bowls | 3 |
| Drainboards | Dual 18 inches, creased and angled toward bowls |
| Working Deck Height | Approximately 33 to 34 inches |
| Material | One-piece 16-gauge stainless steel |
| Corner Radius | 3/4 inch radius vertical and horizontal |
| Welds | Ground smooth, polished to satin finish |
| Legs | Galvanized |
| Feet | Adjustable ABS bullet feet |
| Faucet Holes | Pre-punched, 8-inch centers |
| Faucets | Two faucets required, sold separately |
| Drain Basket | 3.5 inch drain basket included per bowl |
| Net Weight | 99.86 lbs |
| Gross Weight | 115.08 lbs |
| Certifications | NSF |
| Warranty | 90 days workmanship |
This is a freestanding floor-mounted three-compartment sink, not a wall-hung unit. Position the sink with at least 6 inches of clearance behind the backsplash and adjacent to a floor sink or floor drain so the waste lines can air-gap to the floor sink rather than drain directly into the building waste line. An air gap is required by most local plumbing codes for any sink used to wash food contact surfaces or food product.
This sink is sold as will call pickup only. Standard freight carriers tend to bend or dent the backsplash, drainboards, and bowl rims on a 90 inch three-bay unit, so we limit fulfillment to local pickup at 11 US warehouse locations. Buyers within reasonable driving distance of any of these warehouses can pick up directly. Buyers outside that radius should order the BK Resources nationwide-shipped equivalent linked above.
The BK Resources BKS-3-1824-14-18T three-compartment sink with 18x24x14 bowls and dual 18-inch drainboards is the closest direct equivalent built for nationwide LTL freight delivery. It uses the same three-bay layout with 18 by 24 by 14 inch bowls and dual 18 inch drainboards, and lands at a similar 90 inch overall footprint. The BK version steps up to T-304 stainless steel with rounded corners, includes BKDR-4 drain hardware, and is engineered with reinforced backsplash for freight handling. If you need this sink shipped to a job site, a buildout, or a city outside our 11 pickup locations, that is the one to order.
F31 indicates a three-compartment configuration with full-depth bowls (front-to-back). D18 indicates dual 18 inch drainboards, one on each end of the sink. The leading SS1824 indicates an 18 inch wide by 24 inch front-to-back bowl size.
SS1818D31D18 has three 18 by 18 by 12 inch bowls in the same 90 inch overall length with dual 18 inch drainboards. SS1824F31D18 keeps the same 90 inch length and dual 18 inch drainboards but steps up to deeper 18 by 24 by 14 inch bowls. Choose this F31D18 model when staff need to wash full-size 18 by 26 inch sheet pans flat or fully submerge tall stockpots.
SS2424F31D24 has three 24 by 24 by 14 inch bowls with dual 24 inch drainboards in a 120 inch overall length. SS1824F31D18 keeps deep 14 inch bowls but uses 18 inch left-to-right bowl width and 18 inch drainboards, trimming overall length to 90 inches. Choose this 1824 model when wall space is tighter and very large pots over 18 inches in diameter are not part of the workflow.
Most three-bay protocols run a wash bay and a rinse bay that both need running water. The sanitize bay is usually filled from the rinse bay or from a separate sanitizer dispensing line and does not need its own deck-mount faucet. Two faucets is the standard configuration for a three-compartment commercial sink.
Yes. Each bowl ships with a 3.5 inch drain basket included. This is a notable inclusion at this price point. Faucets remain sold separately.
A 90 inch three-bay sink with two drainboards is prone to bending and denting along the backsplash, drainboards, and bowl rims during standard LTL freight handling. Rather than ship a unit that may arrive damaged, we limit this product to local pickup at 11 US warehouses. The BK Resources equivalent is engineered for freight.
Yes. Buyers regularly drive to the closest warehouse, especially for sink and worktable orders where freight risk is high. Confirm pickup hours and bring a vehicle long enough to accept a 90 inch by 30 inch crated unit.
Approximately 33 to 34 inches off the floor with the 22-1/2 inch galvanized legs and standard adjustable ABS bullet feet. Adjust the bullet feet to fine tune for floor variation.
Yes. The unit is NSF listed for commercial foodservice use and meets radius-corner and one-piece sanitary construction requirements common in health code reviews.
The backsplash is pre-punched on 8 inch centers behind the bowls. Order deck-mount commercial faucets with 8 inch centers and a spout long enough to swing across two adjacent bowls. A 12 to 14 inch swing spout is a common starting point.
16 gauge across the entire one-piece body, including all three bowls, the deck, both drainboards, and the rear backsplash. The 16-gauge body is heavier than the 18-gauge stock used on lighter compartment sinks.
Galvanized legs are coated steel and are the standard leg material on this series. Stainless legs are an upgrade option on other series and resist rust streaks better in heavily wet floor environments. Galvanized legs are widely accepted in commercial foodservice installs and keep this sink at a competitive price point.
Net weight is 99.86 pounds and gross crated weight is 115.08 pounds. Two-person handling is recommended for plumbing connection and final positioning.
90 days on workmanship. Faucets and other separately purchased components carry their own manufacturer warranties.
A three-compartment commercial sink is designed for ware washing. Most health codes require a separate dedicated prep sink for food preparation and a separate dedicated handwash sink for hand washing.
Download the SS1824F31D18 spec sheet (PDF)
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