Decking Calculators
Calculators for sizing a residential deck. Boards and joists for the framing, posts and concrete for the footings, risers and stringers for the stairs, baluster spacing for railings, and gallons of stain for the finish. Imperial and metric across all five.
Deck Calculator
Boards, joists, and fasteners for any residential deck. Four materials (pressure-treated, cedar, composite, PVC) and three patterns with waste percentages filled in.
Deck Footing Calculator
Post count, concrete per footing, and bag count. Ledger-attached or free-standing. Cylinder math with frost-line guidance.
Deck Stair Calculator
Risers, treads, stringer count, and tread or riser board counts for residential deck stairs. IRC code compliance check built in.
Baluster Calculator
Baluster count, equal clear spacing, center-to-center spacing, and layout marks for level or stair railing sections.
Deck Stain Calculator
Gallons of stain for any deck size. Coverage rates for semi-transparent, solid, oil-based, and water-based. Optional railings and stairs.