Decking Calculators
Tools for sizing every part of a residential deck — board and joist counts for framing, post and concrete counts for footings, riser and stringer counts for stairs, and gallons of stain for finishing. Imperial and metric units across all four calculators.
Deck Calculator
Board count, joist count, and fastener count for any residential deck. Four materials (pressure-treated, cedar, composite, PVC), three patterns with auto-fill waste percentages.
Deck Footing Calculator
Post count, concrete volume per footing, and bag count. Ledger-attached or free-standing models. Cylinder math with frost-line guidance.
Deck Stair Calculator
Risers, treads, stringer count, and tread/riser board counts for residential deck stairs. IRC code compliance check built in.
Deck Stain Calculator
Gallons of stain needed for any deck size. Built-in coverage rates for semi-transparent, solid, oil-based, and water-based. Optional railings and stairs.