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Construction Calculators

Estimate dimensions, surface areas, material quantities, and project requirements from measured inputs.

12reliable tools

Tool directory

Recently updated calculators

12 available
Hvac

Heat Pump Savings Calculator

Compare heat-pump heating costs with gas or electric resistance. Include seasonal COP, backup heat, energy…

Easy to use
Solar

Solar Battery Payback Calculator

Estimate battery payback after charging losses, lost export credits, maintenance and replacements. Compare cash savings…

Easy to use
Solar

Solar Lease vs Buy Calculator

Compare cash, financed solar, a lease or PPA using your offers. Include escalators, maintenance, export…

Easy to use
Solar

Solar Panel Cost Calculator

Build a solar installation budget from your quote. Compare price per watt, extra work, tax,…

Easy to use
Solar

Solar Payback Calculator

Estimate solar payback with separate import and export rates, degradation, maintenance and replacements. Compare cash…

Easy to use
Lumber

Board Foot Calculator

Calculate board feet from thickness, width, length and quantity, with mixed-lumber tally, cost, waste, nominal-size…

Easy to use
Materials

Asphalt Calculator

Estimate asphalt volume, weight, tons and cost from area, compacted depth, density and waste, with…

Easy to use
Area & Surfaces

Square Footage Calculator

Calculate square footage for rectangles, circles, triangles, trapezoids, L-shaped spaces and multiple rooms, with waste…

Easy to use
Volume & Bulk Materials

Cubic Yard Calculator

Calculate cubic yards from length, width and depth or common shapes, with unit conversion, waste,…

Easy to use

From the guide library

Latest Construction articles

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Construction

Wall Square Footage

Wall area is the sum of each wall width times height, minus openings you truly plan to exclude. For a rectangular room with uniform…

Construction

Soil Compaction and Shrinkage

Loose, bank, and compacted soil volumes are different states. A shrinkage percentage must name its basis; if compacted volume = loose volume × (1...