4 calculators
Decks & Stairs calculators
Stair stringer layout with code checks, deck boards, joists and fasteners.
Stair Stringer
Enter the total rise to get riser height, step count, stringer length and a to-scale layout diagram with IRC code checks.
Deck Board
Find how many deck boards, screws or hidden clips you need for your deck size, by board length, width and gap, with waste included.
Board Foot
Thickness × width × length for one board or a whole order, with total board feet and price per board foot.
Deck Framing Planner
Joist and beam size, post spacing, post and footing size and ledger fasteners, with a to-scale framing plan.