American Standard Studio Under Counter Sink With Glazed Underside - AMS-614300

The Studio 614300 has nominal outside dimensions of 21-1/4 in x 15-1/4 in (540 x 387 mm), with a bowl measuring 18 in wide, 12 in front to back, and 6-7/16 in deep. Since it mounts under the counter, your countertop opening is cut to the bowl profile, not the full nominal size, and the sink ships with a template so the fabricator can scribe the opening from the actual part rather than guessing.

An undercounter mounting kit and a template are included with the 614300. You still supply the countertop adhesive/silicone and the faucet, drain, and P-trap, since an undermount lavatory has no deck holes and the faucet is drilled into the counter.

Yes, a front overflow is built into the bowl. That means you need an overflow-type lavatory drain (a pop-up or grid drain with the side ports open), not a no-overflow drain. Pairing a sink with an overflow to a sealed no-overflow drain body will trap water in the overflow channel.

The underside is glazed, which is the reason to pick this one for a stone or solid-surface counter: the exposed bottom of the bowl below the counter reads as a finished surface rather than raw bisque. The rim itself is unglazed, since it sits hidden under the countertop where the sealant bonds.

The Studio bowl is 6-7/16 in deep with an 18 in by 12 in bowl, which is a normal hand-washing depth for a public or guest lavatory rather than a utility basin. The undermount format is what suits a commercial restroom: no exposed rim on the counter means nothing for debris to collect against and an easy wipe-down straight into the bowl. Choose a self-rimming drop-in instead if your counter is laminate, since an undermount needs a counter material that can carry the sink and take a sealed, finished edge.

The nominal footprint is 21-1/4 in by 15-1/4 in, so it drops inside a 24 in wide vanity with a standard 22 in deep top, provided your counter overhang and the cabinet's front stretcher clear the bowl. Check the front-to-back dimension against the cabinet rail: the bowl runs 12 in front to back and needs clearance behind the faucet drilling.

White only, ordered as part number 614300.02. If you are standardizing a run of restrooms or a multi-family unit turnover, that single finish keeps every bowl matching without cross-referencing color suffixes.

Rectangular. The Studio 614300 is a rectangular undercounter-mount vitreous lavatory, so it lines up with squared-off counter edges and contemporary vanity runs where an oval bowl would look out of place. If you are replacing an oval undermount, the existing counter cutout will not match and the top has to be recut or replaced.