Zanduco 57" x 57" 18-Gauge Three Compartment Stainless Steel Corner Sink with 3.5" Center Drain and Two Drainboards - 18" x 18" x 14" Bowls

The corner format allows the Zanduco 18-Gauge Stainless Steel 18" x 18" x 14" Three Tub Sink with Two Drain Boards and Corner Sink to wrap around a corner wall junction, fitting three tubs and two drain boards into a 90-degree kitchen corner where a straight 57-inch run would require a full wall length that many kitchens cannot provide. Corner sink configurations are specifically designed for L-shaped kitchen layouts.

The 18-inch bowl footprint is appropriate for kitchens processing standard-size plates, pots, and pans rather than commercial full-size hotel pans. For a small restaurant, bakery, or cafe where the largest item being washed is a full-size sheet pan or a 12-quart stockpot, the 18x18 bowl handles the complete wash cycle without the floor space cost of a 24x24 bowl configuration.

The unit is CSA-conforming, which confirms it meets Canadian Standards Association requirements for commercial kitchen equipment sold in Canada. For US operations, CSA certification is a recognized third-party safety credential, but confirm local health department requirements for sink certification in your specific jurisdiction, as some US counties reference NSF rather than CSA for commercial sink approvals.

US health codes require three-compartment sinks to run a wash-rinse-sanitize sequence. Assign the first tub to hot soapy wash water, the second to clean hot rinse water, and the third to chemical sanitizer solution at the correct concentration for your local code. The drain boards then stage soiled ware on entry and clean ware on exit, completing the linear dishwashing workflow.

The corner format requires plumbing rough-in points at or near two wall junctions, one for each run of the L-shape. Confirm that floor drain positioning aligns with both drain outlets before installation, and that the corner mounting point has adequate wall support to hold the unit when loaded. A licensed plumber must assess the corner rough-in before sink delivery, not after.

Mineral deposits build up rapidly in commercial sinks from repeated hot water use. Descale the bowls weekly with a food-safe citric acid solution, allowing it to dwell for 5 to 10 minutes before scrubbing and rinsing. The 14-inch depth means residue accumulates at the bowl bottom corners where a standard sponge cannot reach; use a long-handle brush specifically for deep bowl cleaning.

Covered by a 180-Day Warranty. Corner sink configurations are difficult to return once plumbed into a kitchen corner. Inspect the unit for weld integrity and drain seat condition before allowing plumbing connections to be made, and report defects immediately to stay within the coverage window.