Walls & Drywall Calculators

Sheet counts, stud layouts, fasteners, joint compound and insulation for framed walls.

10 free walls & drywall calculators — no sign-up, instant results.

Drywall Calculator

Complete drywall material calculator: enter wall area and get sheets, joint compound (mud), and screw quantities for the whole project.

Estimate the total cost of a drywall project including material, waste allowance, labor, and sales tax.

Calculate joint compound (mud) requirements for drywall finishing. Adjust coverage based on finish level (light skim to heavy texture).

Calculate the exact number of drywall screws needed based on sheet count and screw spacing. Covers standard and tall sheets.

Quickly calculate the number of drywall sheets needed based on wall area and sheet size (4×8, 4×10, or 4×12).

Calculate the number of insulation batts or rolls needed for wall cavities. Supports standard and custom batt sizes.

Calculate total R-value for a wall assembly by adding R-values of individual layers (drywall, insulation, sheathing, exterior finish).

Calculate the number of studs needed for a single wall run based on length and on-center spacing. Fast framing estimator.

Calculate the net surface area of drywall needed for a room by entering perimeter, height, and window/door openings.

Calculate total studs for a complete room including corners and door/window openings. Whole-room framing estimator.