undermount kitchen sinks double bowl

Most listings specify 304 stainless steel (often noted as heavy-duty 16-gauge). A smaller number of models use glazed fireclay construction.

Several sinks are listed as 16-gauge 304 stainless steel. Some listings also provide millimetre details, for example a reinforced 2.0 mm rim paired with a 1.0 mm bowl thickness.

Many listings describe sloped bottoms and channel or X-shaped grooves to direct water toward the drain. Most use a standard 3-1/2" drain size compatible with most disposals; one farmhouse-style listing specifies an offset drain dimension of 114 mm (4.49 in).

Many sinks include integrated sliding ledges or single-tier tracks that accept accessories—cutting boards, roll-up racks, or drying racks—so you can slide them across the basin to create a countertop-style workstation.

Several models support dual installation (undermount or drop-in). Some listings also note reinforced rim construction—for example, a 2.0 mm rim combined with a 1.0 mm bowl thickness is mentioned in certain products.

Common accessories include cutting boards, roll-up drying racks, bottom grids, drain strainers or complete drain kits, and colanders or colander-style strainers.

Stainless-steel listings emphasize smooth, non-porous finishes and rounded corners for easy wiping, plus sloped bottoms or channel grooves to aid drainage. Fireclay options highlight a glazed, ultra-smooth surface that’s also easy to clean.