Drywall sheet, tape, and joint compound calculators. Browse our free drywall tools below — all calculators are instant, accurate, and require no sign-up.
Corner Bead Calculator — Calculate corner bead pieces for drywall outside corners. Enter total linear feet of outside corners and piece length to determine the number of corner bead strips needed.
Drywall Ceiling Calculator — Calculate drywall sheets for ceilings. Enter room dimensions to determine the number of 4×8 or 4×12 ceiling panels needed, including waste for cuts and edges.
Drywall Cutout Calculator — Estimate the number of drywall cutouts for outlets, switches, lights, and windows. Plan cutting time and determine which sheets need the most detail work.
Drywall Joint Compound Calculator — Calculate how much joint compound (mud) you need for drywall finishing. Estimates gallons based on joint length and 3 coats for professional taping results.
Drywall Repair Calculator — Estimate materials for drywall repairs. Enter the damage size to calculate patch dimensions, joint compound, tape, and screws needed for a professional patch job.
Drywall Screw Calculator — Calculate how many drywall screws you need. Estimates ~32 screws per wall sheet and ~36 per ceiling sheet based on standard 12-inch spacing patterns.
Drywall Sheet Calculator — Calculate the number of drywall sheets needed for walls. Enter dimensions and choose between 4×8 and 4×12 sheets to optimize material and minimize waste.
Drywall Tape Calculator — Calculate rolls of drywall tape needed for joints. Estimates total linear feet of seams based on sheets and converts to 500-foot or 250-foot roll quantities.
Plaster Skim Coat Calculator — Calculate how many bags of plaster or joint compound you need for skim coating. Enter surface area, number of coats, and material type to estimate total material.
Popcorn Ceiling Removal Calculator — Estimate time and materials for popcorn ceiling removal. Enter ceiling area to calculate work hours at ~100 sq ft/hr and disposal bag quantities for the project.