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Construction

Free online construction — fast, private, and easy to use. No sign-up required.

Concrete Calculator

Calculate how many bags or cubic yards of concrete you need for slabs, footings, and columns. Includes waste factor. Free concrete calculator.

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Paint Calculator

Calculate how many gallons of paint you need for any room or surface. Accounts for doors, windows, and number of coats. Free paint calculator.

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Square Footage Calculator

Calculate square footage of rooms, floors, and surfaces. Supports rectangles, circles, triangles, and trapezoids. Add multiple rooms and sum totals.

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Tile Calculator

Calculate how many tiles you need for any room or surface. Enter room dimensions, tile size, and waste factor to get total tiles and square footage needed.

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Gravel / Aggregate Calculator

Calculate how much gravel, rock, or aggregate you need for any project. Enter area dimensions and depth to get cubic yards, cubic feet, and tons needed.

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Mulch Calculator

Calculate how many cubic yards or bags of mulch you need for your garden or landscape. Enter area and desired depth to get exact mulch quantity needed.

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Roofing Calculator

Calculate how many roofing squares, shingles, and materials you need. Enter your roof dimensions and pitch to estimate shingle bundles, felt underlayment

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Drywall / Sheetrock Calculator

Calculate how many drywall sheets you need for any room. Enter room dimensions, ceiling height, number of doors and windows — get sheet count, screws, and tape.

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Deck Board / Lumber Calculator

Calculate how many deck boards and how much lumber you need. Enter deck dimensions, board width, and spacing to get board count, lineal feet, and material cost.

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Fence Calculator

Calculate fence posts, rails, and pickets needed for any fence. Enter fence length, post spacing, picket width, and rails per section to get all materials.

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Stair Calculator

Calculate stair rise, run, number of steps, and stringer length. Enter total rise height to get code-compliant stair dimensions and cut stringer measurements.

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BTU / AC Size Calculator

Calculate how many BTUs you need to cool a room or house. Enter room size, ceiling height, insulation, climate, and sun exposure to get the right AC size.

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About Construction

Construction and home improvement calculators: tile calculator, gravel estimator, mulch calculator, roofing material estimator, and more — get accurate quantities for any project.

All construction on ToolsHub are completely free and require no account or registration. Your data stays private because processing happens directly in your browser — nothing is sent to our servers.

Whether you're a professional, student, or casual user, our construction are designed to be fast, accurate, and easy to use on any device.