American Standard Ravenna Center Hole Only Wall-Hung Sink and Semi-Pedestal Leg Combination - AMS-268144

Both, in a sense. It is a wall-hung basin carried by the wall, with a semi-pedestal leg that covers the trap and supply lines but does not reach the floor. That means you still need blocking in the wall to carry the load, the same as any wall-hung basin.

Nominal 24-1/4 x 20 inches (616 x 508 mm). Lay that out against your rough-in before framing: the semi-pedestal hides the trap only within that footprint, so the drain stub needs to land centered behind the leg.

Yes, a rear overflow. That matters for drain selection: pair it with a grid or pop-up assembly built for an overflow lavatory so the overflow channel actually vents.

No. The integral mounted towel bar is an option that has to be ordered separately. The basin itself comes with a faucet ledge and a soap and accessory deck.

White is the finish offered, under American Standard part number 268144.02. If you are standardizing restrooms across a building, that single part number covers both the basin and the semi-pedestal leg combination.

A semi-pedestal like the Ravenna hides the trap and supplies but leaves the floor open underneath, which makes cleaning easier and keeps knee space clearer. A full pedestal carries part of the load to the floor and needs less wall blocking, but it blocks the floor and boxes in the piping. Where the wall can be blocked out, the semi-pedestal is the usual choice for commercial restrooms.

Vitreous china. It is the standard material for commercial lavatories, non-porous and cleanable with typical restroom chemicals, and the wall-hung mounting keeps the floor clear for mopping.