calcs.homes

Lumber & framing calculators

13 free tools for stairs, board feet, decks, fences, siding, wall framing, and shop math.

Stair Calculator
Riser height, number of risers, total run, and stringer length.
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Board Foot Calculator
Board feet and cost from thickness, width, and length.
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Deck CalculatorPopular
Decking boards needed and material cost for any deck size.
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Fence Calculator
Posts, pickets, and cost for a fence line.
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Siding Calculator
Siding squares needed and cost, minus windows and doors.
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Stud Calculator
Wall framing stud count, including corners and openings.
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Lumber Calculator
Boards needed and cost from total linear footage.
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Baluster Spacing Calculator
Deck and stair railing baluster count and code-compliant spacing.
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Slope Calculator
Rise over run as an angle, percent grade, and ratio.
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Ramp Calculator
ADA-compliant ramp length and landing requirements.
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Shelf Span Calculator (Sagulator)
Estimate shelf sag from material, thickness, span, and load.
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Epoxy Resin Calculator
Resin and hardener amounts for a tabletop or river table pour.
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Deck Load Calculator
Total design load and estimated occupancy for a deck.
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