Construction tools,
built right.
Free calculators, estimators, and planners for contractors, builders, and DIYers. No signup, no upsell.
12 tools ready to use.
Free, browser-based, no signup. The rest of the category ships in 2026.
Concrete Calculator
Cubic yards, bags, and cost for slabs, footings, and columns.
Lumber Calculator
Board feet, framing studs, and sheet goods with waste & cost.
Roof Pitch Calculator
Convert pitch ratios, calculate rafter length, slope angle, and rise.
Drywall Estimator
Sheets, screws, mud, and tape for any room with deductions and waste.
Stair Calculator
Riser count, tread depth, stringer length, and IRC code check.
Paint Calculator
Estimate gallons, primer, and cost for walls and ceilings.
Flooring Calculator
Estimate hardwood, laminate, vinyl, carpet, and tile materials and cost.
Tile Calculator
Tiles needed for floors, walls, and backsplashes with grout and waste.
Square Footage Calculator
Calculate area for rooms, yards, and irregular shapes in sq ft or meters.
Roofing Calculator
Roofing squares, shingles, underlayment, and material cost for any roof shape.
Fence Calculator
Posts, rails, panels, and concrete for any fence length and style.
Mulch Calculator
Cubic yards and bags of mulch for any garden bed or landscape area.
4 tools on the way.
The most-requested estimating and planning workflows for contractors, builders, and DIYers. More will ship monthly.
Gravel CalculatorSoon
Cubic yards and tons of gravel or stone needed for driveways, paths, and beds.
BTU CalculatorSoon
BTUs needed to heat or cool any room based on area, ceiling height, and climate.
Wallpaper CalculatorSoon
Rolls of wallpaper needed for any room, accounting for pattern repeat and waste.
Insulation CalculatorSoon
R-value, square footage, and bags or rolls of insulation needed for walls, attic, or floor.
Need a specific calculator?
We're building from real use cases. If you do construction work and have a calculation you redo every week, tell us — we'll prioritize it.
Suggest a toolHelp us improve
Found a bug, have an idea, or want a new tool? Let us know — every message is read.
While you wait, check out what's live.
60+ free tools for social media — all working, all free, no signup.
Browse social media tools