Construction & DIY

29 tools

Concrete, paint, flooring, and other material calculators for home improvement and construction projects.

29 free tools
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All Construction & DIY Tools

Showing 1–24 of 29

Board Feet Calculator
Calculate the board feet of lumber from thickness, width, length, and quantity.

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Brick Calculator
Find how many bricks you need for a wall, accounting for mortar joints and waste.

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Concrete Calculator
Calculate how much concrete you need in cubic yards, plus how many 60 lb or 80 lb bags to buy.

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Countertop Calculator
Find the square footage and estimated cost of a countertop, including a waste allowance.

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Deck Calculator
Calculate the total linear feet of decking boards needed for a deck, accounting for board width, gaps, and waste.

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Drywall Calculator
Calculate how many standard 4x8 ft drywall sheets a wall area needs.

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Excavation Volume Calculator
Find the volume of dirt to excavate, in cubic yards, plus an estimated number of truck loads.

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Feet and Inches Calculator
Combine a feet + inches measurement into total inches, centimeters, and decimal feet.

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Fence Calculator
Calculate how many fence posts and rails you need based on total fence length and post spacing.

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Flooring Calculator
Calculate how many boxes of flooring you need for a room, including a waste allowance for cuts.

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Gravel Calculator
Calculate how much gravel you need in cubic yards and tons for a driveway or landscaping project.

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Gutter Calculator
Find how much gutter and how many downspouts you need from your roof perimeter.

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Inches to Fraction Calculator
Round a decimal inch measurement to the nearest 1/2, 1/4, 1/8, 1/16, 1/32, or 1/64 inch.

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Insulation Calculator
Calculate the insulation thickness and volume needed to hit a target R-value.

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Lumber Cost Calculator
Find the total board feet and total cost of a lumber order from board dimensions and price.

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Map/Model Scale Calculator
Solve for real-world distance, model/map distance, or scale ratio given the other two.

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Mulch Calculator
Calculate how many cubic yards or bags of mulch you need from your area and desired depth.

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Paint Calculator
Calculate how many gallons of paint you need for a room, based on wall area, coats, and coverage.

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Paver Calculator
Calculate how many pavers you need for a patio or walkway, including a waste allowance.

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Rebar Calculator
Calculate how many rebar runs and total rebar length a concrete slab needs.

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Retaining Wall Calculator
Calculate how many wall blocks are needed for a retaining wall from its dimensions.

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Roof Pitch Calculator
Convert rise and run into standard roof pitch notation, angle in degrees, and percent slope.

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Roofing Calculator
Calculate roofing squares and shingle bundles needed from your roof's footprint and pitch.

Free No signup

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Siding Calculator
Find how many siding panels you need for a wall area, including a waste allowance.

Free No signup

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Frequently asked questions

The Construction & DIY category currently has 29 tools — see the full list above.

Yes — every tool in this category is free, with no signup and no watermarks on generated documents.

Yes. As new tools are published in this area, they appear here automatically.