The Advance Tabco N-5-18 Detachable Drainboard features a spacious 21" x 18" design, specifically crafted for square corner sinks. Constructed from durable 18 gauge 430 stainless steel, this drainboard ensures long-lasting performance and resistance to corrosion. Its detachable design allows for easy cleaning and versatility in your kitchen setup, making it an essential addition for efficient food preparation and dishwashing.