American Standard Edgewater 25 x 22-Inch Stainless Steel 1-Hole Dual Mount Single-Bowl ADA Kitchen Sink - AMS-18SB6252211

Both. It's a dual mount sink, so you can drop it into a laminate or tile top from above or undermount it to stone. That's the reason the corners are zero radius and the deck is finished on the exposed edge. Decide which way you're going before the countertop is templated, since the cutout differs between the two methods.

The bowl measures 22-1/4 inches (565 mm) wide, 16-9/16 inches (420 mm) front to back, and 6 inches (152 mm) deep. The 6 inch depth is shallow for a kitchen sink by design, and the drain is offset rather than centered, which keeps clear space under the bowl for knee clearance and plumbing.

One. It's a single hole deck, which suits a single-lever kitchen faucet or a pull-down with an integral escutcheon. If you also want a side sprayer, soap dispenser, or air switch for a disposer, those will have to be drilled into the countertop rather than the sink deck.

18-gauge is the standard commercial-quality thickness for a fabricated stainless sink and holds up to daily residential use without the oil-canning you get from thinner 20 or 22-gauge bowls. The Edgewater is a fabricated (welded) bowl rather than a drawn one, which is why the corners are zero radius. It's catalogued for residential use; for a heavy-abuse commercial kitchen you'd step up to 16-gauge.

Order it as American Standard 18SB6252211.075, from the Edgewater family. The .075 suffix is the stainless steel finish, and that is the only finish this sink is built in.

What's described is the sink bowl itself, in 18-gauge stainless with the sound pads and undercoating already applied. Plan on ordering the basket strainer, tailpiece, P-trap, and, for an undermount job, the clip set and template separately. Note the drain is offset, not centered, so lay out the trap arm to the offset location.

It's fitted with SoundSecure+ sound pads on the bowl and StoneLock undercoating over the underside. The pads knock down the ring when dishes hit 18-gauge steel, and the undercoating reduces condensation on the bowl exterior in a closed cabinet.

Listed dimensions are 28.187 long, 25.125 wide, and 10.625 high, with a product weight of 25.622 pounds. That's a one-person lift, but on an undermount install you'll want a second set of hands or a support frame while the clips and adhesive set.