Free Tools

Construction Calculators

Quick, free calculators for real jobsite math — no account needed. When you're ready to skip manual takeoffs entirely, Struvia pulls these quantities straight from your plans.

Keep your takeoff calculations in one worksheet

Editable concrete, preliminary stud and drywall calculations with visible formulas, assembly assumptions and illustrative examples.

Download the construction takeoff worksheet

Cubic Yard Calculator

Figure out how much material to excavate, haul, or bring in — enter your dimensions and get cubic yards plus estimated truck loads.

Excavation subs →Open

Voltage Drop Calculator

Check whether a circuit run will hold acceptable voltage before you pull wire — enter gauge, distance, and load.

Electrical subs →Open

BTU Calculator

Get a quick rule-of-thumb BTU estimate for a room or space by square footage and climate — useful for rough sizing, not a substitute for a Manual J load calculation.

HVAC subs →Open

Tile Calculator

Enter your area and tile size to get the tile count, waste-adjusted total, and boxes needed for the job.

Flooring subs →Open

Drywall Calculator

Enter your wall and ceiling area to get sheet count plus a rough materials list for mud, tape, and screws.

Drywall subs →Open

Framing & Stud Calculator

Enter wall length, on-center spacing, corners, and openings to get stud count and plate lumber needed.

Framing subs →Open

Fence Calculator

Enter your fence length and post spacing to get the posts, rails, and pickets needed for the run.

Browse subs →Open

Siding Calculator

Enter your gross wall area and openings to get the siding squares needed, in the industry-standard 100 sq ft unit.

Siding subs →Open

Flooring Calculator

Enter your room area and box coverage to get the flooring square footage and box count needed.

Flooring subs →Open

Insulation Calculator

Enter your area and the coverage printed on your insulation package to get the number of packages needed.

Insulation subs →Open

Struvia does this automatically

These calculators are handy for a quick number. For a real project, Struvia reads your uploaded plans and measures quantities like this for every trade — automatically.

Try the interactive demo