Construction Calculators
Building anything, from a garden shed to a house extension, lives or dies on material estimates. Order too little concrete and the truck leaves mid-pour; order too much paint and money dries in the can. This category covers the core quantity takeoffs of construction: concrete volume with the waste factor that uneven ground demands, paint coverage calculated per coat the way the job is actually done, lumber counts from real framing spacings, and roofing in squares with pitch-corrected area. Every calculator includes the overage allowances professionals use, because geometry gives you the theoretical number and the job site gives you the real one. Measure carefully, keep the recommended waste factors, and use these estimates to order confidently and to check contractor quotes. Structural questions still belong to a licensed professional, but the material math is yours to master.
57 free construction calculators. Every tool runs instantly in your browser with the formula shown, a worked example, and answers to common questions.
Asphalt Quantity does the quantity math for building and renovation: how much material a job needs.
Block Wall does the quantity math for building and renovation: how much material a job needs.
Bricks does the quantity math for building and renovation: how much material a job needs.
Carpet does the quantity math for building and renovation: how much material a job needs.
Ceiling Tile does the quantity math for building and renovation: how much material a job needs.
Concrete Bags uses the classic geometry formulas: area measures the surface something covers, volume measures the space it fills.
Concrete Column uses the classic geometry formulas: area measures the surface something covers, volume measures the space it fills.
Concrete Slab uses the classic geometry formulas: area measures the surface something covers, volume measures the space it fills.
Conduit Fill does the quantity math for building and renovation: how much material a job needs.
Crown Molding does the quantity math for building and renovation: how much material a job needs.
Deck Calculator does the quantity math for building and renovation: how much material a job needs.
Drywall does the quantity math for building and renovation: how much material a job needs.
Drywall Screws does the quantity math for building and renovation: how much material a job needs.
Drywall Sheets does the quantity math for building and renovation: how much material a job needs.
Excavation uses the classic geometry formulas: area measures the surface something covers, volume measures the space it fills.
Fence does the quantity math for building and renovation: how much material a job needs.
Fence Panel does the quantity math for building and renovation: how much material a job needs.
Flooring does the quantity math for building and renovation: how much material a job needs.
Footing Size uses the classic geometry formulas: area measures the surface something covers, volume measures the space it fills.
Formwork does the quantity math for building and renovation: how much material a job needs.
Gravel does the quantity math for building and renovation: how much material a job needs.
Gravel Driveway does the quantity math for building and renovation: how much material a job needs.
Gravel Tonnage does the quantity math for building and renovation: how much material a job needs.
Gutter does the quantity math for building and renovation: how much material a job needs.
Insulation does the quantity math for building and renovation: how much material a job needs.
Insulation Batts does the quantity math for building and renovation: how much material a job needs.
Journeyman Wage Progression converts pay between time periods so salaries, hourly wages and freelance rates can be compared apples to apples.
Lumber Calculator does the quantity math for building and renovation: how much material a job needs.
Mortar Mix does the quantity math for building and renovation: how much material a job needs.
Mulch does the quantity math for building and renovation: how much material a job needs.
Paint Quantity does the quantity math for building and renovation: how much material a job needs.
Paver Calculator does the quantity math for building and renovation: how much material a job needs.
Pipe Cutback does the quantity math for building and renovation: how much material a job needs.
Pipe Volume uses the classic geometry formulas: area measures the surface something covers, volume measures the space it fills.
Plaster does the quantity math for building and renovation: how much material a job needs.
Post Hole Concrete uses the classic geometry formulas: area measures the surface something covers, volume measures the space it fills.
Rafter Length does the quantity math for building and renovation: how much material a job needs.
Rebar Calc does the quantity math for building and renovation: how much material a job needs.
Rebar Calculator does the quantity math for building and renovation: how much material a job needs.
Retaining Wall does the quantity math for building and renovation: how much material a job needs.
Rolling Offset does the quantity math for building and renovation: how much material a job needs.
Roof Pitch does the quantity math for building and renovation: how much material a job needs.
Roofing does the quantity math for building and renovation: how much material a job needs.
Scaffolding does the quantity math for building and renovation: how much material a job needs.
Septic Size uses the classic geometry formulas: area measures the surface something covers, volume measures the space it fills.
Shingle Squares does the quantity math for building and renovation: how much material a job needs.
Siding Squares does the quantity math for building and renovation: how much material a job needs.
Sod does the quantity math for building and renovation: how much material a job needs.
Soffit Area does the quantity math for building and renovation: how much material a job needs.
Soil does the quantity math for building and renovation: how much material a job needs.
Stair Stringer does the quantity math for building and renovation: how much material a job needs.
Stairs does the quantity math for building and renovation: how much material a job needs.
Tile Boxes does the quantity math for building and renovation: how much material a job needs.
Tile Calculator does the quantity math for building and renovation: how much material a job needs.
Wall Area uses the classic geometry formulas: area measures the surface something covers, volume measures the space it fills.
Wallpaper does the quantity math for building and renovation: how much material a job needs.
Water Tank uses the classic geometry formulas: area measures the surface something covers, volume measures the space it fills.