Decision to make
Record the existing fixture, accessible label, supply and drain locations, shutoffs, opening or rough-in measurements made by the qualified party, surrounding finish, accessibility goals, and connected appliances.
Record to build
Request exact manufacturer, model, finish, included parts, owner-supplied items, substitutions, delivery, damage inspection, removal, disposal, and return rules. A showroom name may not identify every required connection.
Question to compare
Compare supply, stops, connectors, drain, trap, flange, support, sealing, electrical, gas, ventilation, cabinetry, counter, waterproofing, tile, and finish responsibilities. Confirm permit and inspection.
Useful closeout
Keep selected product, measurements, installed connectors, test, permit when applicable, manual, warranty, maintenance, invoice, and photographs. Record any owner-supplied product warranty boundary.