Measure once,
build right.
Complete material calculators for wood projects. Get a full bill of materials — boards, joists, footings, hardware, and cost — instantly. No accounts, ever.
Complete bill of materials
Not just board counts. Every tool outputs joists, footings, concrete, fasteners, and an optional cost estimate.
Saved in the URL
All inputs are encoded in the URL — bookmark to save, share a link to share your project. No account needed.
Print-ready shopping list
One-tap copy or print. Hand the list to the lumber yard — no math required.
Calculators
Pick your project.
Six free calculators. Each one gives you a complete, print-ready material list.
Deck Material Calculator
Complete BOM for your deck: boards, joists, footings, concrete, screws or clips, railing, and cost. Supports wood and composite.
Composite Deck Calculator
Works for Trex, TimberTech, Fiberon, and all brands. Outputs boards, hidden clips, joists, framing, and footings.
Stair Calculator
Rise, run, stringer length, tread count — with automatic IRC code compliance checking and a side-view diagram.
Railing & Baluster Calculator
Posts, sections, baluster count per section, actual gap — enforces the IRC 4-inch sphere rule automatically.
Fence Calculator
Posts, rails, pickets, concrete bags — with gate support. Choose post spacing, picket width, and gap.
Board Foot Calculator
Multi-row calculator for any lumber. Enter thickness, width, length, and quantity to get board feet and cost.
Guides
Learn while you build.
Step-by-step deck building guides, code references, and permit help — written for US DIYers.
Build Your First Deck
From measuring your yard to laying the first board — a step-by-step walkthrough.
Read guide →
Code & PermitsDeck Code Requirements
Typical IRC values for framing, railings, and stairs — with local-code disclaimers.
Read guide →
Code & PermitsDeck Permit Guide
Do you need a permit? How the process works, what to expect, and how to find out.
Read guide →
The complete answer, instantly, free.
No sign-up. No email. No paywall. Just enter your dimensions and get a complete material list.