Board & Drywall Calculator

⚡ Free Tool

Board & Drywall Calculator

Calculate drywall sheets and wall framing studs & plates in one tool

🏠 Drywall Sheets

🪓 Wall Framing — Studs & Plates

How many studs and how much plate lumber for your walls

Quick Reference

  • Standard drywall sheet: 4×8 ft (32 sq ft)
  • 4×12 ft sheets reduce seams on taller walls
  • Standard door opening: ~20 sq ft (3×7 ft)
  • Standard window opening: ~15 sq ft (3×5 ft)
  • Studs at 16″ O.C. is code-standard for most walls
  • Always add 10% waste for both drywall and lumber
  • Double top plate = 2× total wall length in lumber