How a bathroom remodel composer works — one room feeds seven calculators into one materials list
A composer never re-implements math. You enter the bathroom once, and the shared dimensions feed seven standalone calculators (drywall, paint, flooring, wall tile, vanity, countertop, trim). Each runs on its own, then the outputs merge into one materials list where every line traces back to its source calculator.
What this diagram shows
A flow diagram of a bathroom remodel composer. On the left, the room is entered once — length by width, ceiling height, number of doors and windows, and the wet-area tile choice. Those shared inputs are fed to seven standalone calculators listed in the middle: drywall, interior paint, flooring, wall tile, vanity, countertop, and trim. Each calculator runs independently and produces its own quantities, such as 12 sheets of drywall, 2 gallons of paint, 48 square feet of floor tile, 66 square feet of wall-tile surround, one vanity cabinet, a countertop slab, and 30 linear feet of base trim. On the right those outputs merge into one materials list where every line is tagged with the calculator that produced it. The composer never re-does the math — it calls the same calculators you can use on their own and combines their results.
Bathroom Remodel Calculator
Combine drywall, paint, flooring, and wall-tile estimates into one bathroom materials list. Tile-vs-paint overlaps handled automatically. Free.
