TOTO Clayton Rectangular Bathroom Sink, Cotton White

Both. The Clayton is sold as a pedestal (basin plus pedestal column, LPT780 models) and as a drop-in that sets into a countertop cutout (LT781 models). The pedestal version stands 34-5/8 inches high overall and measures 19.625 by 27 inches; the drop-in bowl is 18.25 by 25 inches with a height of 8.5 inches. Pick the pedestal where there is no vanity and the supply and drain are roughed in behind the column, and the drop-in where you already have a counter.

Yes, if you order the 4 inch center drilling. The Clayton is drilled three ways and you have to choose at order: single hole, 4 inch center, or 8 inch center (widespread). A 4 inch centerset faucet needs the 4 inch center deck, which is LPT780.4#01 on the pedestal and LT781.4#01 on the drop-in. The deck is not convertible after the fact, so match the drilling to the faucet you already bought.

The Clayton drop-in bowl measures 18.25 by 25 inches overall, with a basin of 9.75 by 18.25 inches on the LT781#01 and LT781.4#01, and 11.25 by 19.5 inches on the LT781.8#01. The rim sits on the counter, so the cutout goes inside that 18.25 by 25 inch footprint. Use the cutout template in TOTO's installation sheet rather than scaling off the overall numbers.

The Clayton pedestal stands 34.625 inches to the rim, which TOTO calls its Universal Height. That is taller than a traditional 31 to 32 inch pedestal, so it suits adults who do not want to stoop. Worth checking against your faucet clearance and mirror layout before you set it. If your project is working to an accessibility spec, verify the rim height against the requirement that applies to your facility.

It ships as a two-piece assembly under one model number. The pedestal version is built from the basin, component LT780.4#01, and the pedestal leg, component PT780#01. You order the LPT780 number and get both. The combined pedestal unit weighs 43 pounds, so plan for two people setting it and a solid floor anchor.

Yes, the Clayton has a rear overflow. That matters for drain selection: a sink with an overflow takes a standard overflow-type pop-up or grid drain, not the no-overflow type used on vessel bowls. The overflow sits at the back of the basin, behind the faucet deck.

No, and it is worth checking before you standardize a building on one number. Two basin sizes run through the Clayton line: 11.25 by 19.5 inches on LPT780#01, LPT780.4#01 and LT781.8#01, and 9.75 by 18.25 inches on LPT780.8#01, LT781#01 and LT781.4#01. If you are replacing one fixture in a row of matching sinks, match the model number, not just the collection name.

The sink and pedestal come together, but the trim does not. You will need a faucet drilled to match (single hole, 4 inch center, or 8 inch widespread, whichever version you ordered), a pop-up drain assembly suited to a sink with a rear overflow, a P-trap, and supply stops and risers. The pedestal also needs the basin anchored to the wall, so confirm the blocking behind the finished wall before the drywall goes up.

A pedestal like the Clayton LPT780 gives you a freestanding fixture in a tight or period bathroom and hides the trap in the column, but it gives up all storage and the supply and drain have to land within the pedestal footprint. The Clayton drop-in, LT781, sets into a counter you already have and keeps the vanity cabinet underneath. Both use the same collection styling and the same Cotton White, so you can run pedestals in a powder room and drop-ins in the main bath and still have them read as a set.