American Standard Portsmouth 23 x 18-Inch Stainless Steel Undermount Single-Bowl ADA Kitchen Sink - AMS-18SB6231800S

The 6 inch bowl depth with an offset drain is what makes it an ADA-style sink. A shallow bowl keeps the drain and plumbing high enough that a wheelchair user can roll under the counter, and offsetting the drain pushes the tailpiece and trap toward the back and out of knee space. If you want a deep bowl for stockpots, this is the wrong sink for that job.

Both are in the box: undermount sink clips (791676-100.0070A) and a waste fitting (9028000.075). You still supply the silicone or adhesive for the countertop bond, the tailpiece and P-trap, and the faucet, since an undermount sink has no deck holes and the faucet mounts in the counter.

No. The Portsmouth 23 x 18 is an undermount sink with no finished deck rim, so it needs a solid surface countertop, stone or quartz, with a polished cutout edge. Laminate tops are not suitable for undermount hanging. If you are replacing a drop-in, you will be replacing the counter too.

The bowl measures 21-7/16 inches (544 mm) wide, 15-13/16 inches (401 mm) front to back, and 6 inches (152 mm) deep. That is a wide, shallow single bowl, so a full-size sheet pan lays flat but tall items sit above the rim.

18-gauge is the common mid-weight for residential stainless sinks, heavier and quieter than the 20 and 22 gauge bowls on budget units. American Standard also adds SoundSecure+ sound pads and StoneLock undercoating on the underside, which cut the drumming and the condensation drip you get on a bare bowl. It is catalogued as a residential sink, not a commercial-duty one.