Lumber & Framing Calculators & Estimators
Boards, studs, joists, plywood, decks and stairs. Built for homeowners planning a project and contractors preparing a bid: enter dimensions, get the quantities and budget ranges suppliers actually quote in.
Lumber Calculator
Board count from run length and on-center spacing for framing layouts.
Board Foot Calculator
Board feet and cost for hardwood and dimensional lumber pricing.
Stud Calculator
Stud and plate counts for a wall by length and spacing.
Plywood Calculator
Sheet count for sheathing, subfloor and decking from area.
Joist Calculator
Joist count from span direction length and spacing.
Deck Calculator
Deck boards, joists and fasteners from deck dimensions.
Deck Cost Calculator
Installed deck cost by material at 2026 per-square-foot rates.
Stair Calculator
Riser count, rise/run dimensions and stringer length from total rise.
When to use which calculator
Use the Lumber Calculator for any on-center layout, the Stud Calculator for walls specifically, and Joists for floors and decks. Sheet goods go through the Plywood Calculator; hardwood pricing through Board Feet. Deck projects chain Deck → Stair → Deck Cost.