American Standard Studio Under Counter Sink - AMS-614000

The Studio 614000 is a rectangular undermount sink with nominal dimensions of 19-3/4 by 13-3/4 inches (501 mm x 349 mm), and the bowl itself is 18 inches wide by 12 inches front to back. Your countertop cutout has to fall inside the 19-3/4 x 13-3/4 rim footprint and clear the 18 x 12 bowl, so lay it out from the template that ships with the sink rather than from the nominal numbers alone.

The undercounter mounting kit and a layout template are both supplied with the Studio 614000. You still need to supply the silicone or adhesive and the faucet, since an undermount lavatory has no deck holes, the faucet mounts in the countertop.

Yes, it has a front overflow. That means it takes a standard overflow-style lavatory pop-up or grid drain, not the no-overflow type used on vessel bowls. If you specify a drain without the overflow channel, the overflow will have nowhere to discharge.

Undermount. It mounts from below the counter with the supplied clip kit, so it needs a finished countertop with a polished cutout edge, granite, quartz, or solid surface. If your cabinet has a laminate top, this is the wrong sink for it, a self-rimming drop-in or a pedestal is what fits that job.

Bowl depth is 6-7/16 inches, with an 18 inch by 12 inch bowl opening. That depth matters for your trap and supply layout: under a stone top you lose roughly the counter thickness plus 6-7/16 inches before the drain tailpiece even starts, so check clearance to the P-trap arm and to anything behind the cabinet wall.

The Studio 614000 has an unglazed rim because the rim is buried under the countertop once installed and never shows. The unglazed surface gives the silicone and the clip hardware something to grab. It does mean the sink is strictly an undermount, it is not meant to be dropped in from above where that raw edge would be exposed.