Calculators for this trade
Deck, Fence & Railing Calculators
Use this section for deck boards, board gaps, joists, screws, rail posts, cable railing rows, balusters, pickets, fence material, and rough deck or fence costs without jumping between unrelated pages.
9 free tools. No signup, no paywall. Just fixed formulas, waste allowances, and jobsite notes you can check.
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Start with the decks job you are checking, then open the calculator that matches your measurement. Related tools stay together, from quick layout checks to material counts and early cost estimates.
Decks calculators
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Baluster Spacing Calculator
Baluster, spindle, stair railing, and deck picket spacing with code-conscious 4″ US / 100 mm UK-EU defaults.
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Deck Railing Posts Calculator
Post count, line posts, and even section spacing for straight deck guardrail runs before baluster layout.
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Fence Material Calculator
Estimate fence posts, sections, rails, pickets or panels, concrete bags, waste, and material cost.
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Picket Spacing Calculator
Estimate fence or rail pickets per section, equal gap size, total pickets, waste, and rough cost.
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Deck Board Calculator
Board count, rows, and linear footage from deck size, board width, gap, and waste.
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Deck Board Spacing Calculator
Estimate deck board rows, equal gap, finished deck width, board footage, waste, and rough material cost.
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Cable Railing Spacing Calculator
Estimate cable rail rows, equal vertical spacing, post spacing checks, total cable length, waste, and rough material cost.
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Deck Screws Calculator
Estimate decking screw count, screw boxes, board-to-joist hits, waste, and fastener cost.
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Deck Joist Calculator
Estimate deck joist rows, on-center spacing, blocking pieces, rim boards, linear framing, waste, and cost.
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