CalcShelf
Construction shelf

Material estimates before the hardware-store run.

Estimate paint, drywall, drywall finishing, roofing, siding, house wrap/weather barrier, gutters/downspouts, soffit/fascia, trim/baseboard, quarter round/shoe molding, door/window casing, crown molding, caulk/sealant, sheathing panels, insulation, framing lumber, deck boards, stair stringers/treads, fence materials, pavers, gravel, topsoil, landscape fabric, rebar, concrete block, concrete footing, post-hole concrete, tile, flooring, concrete, and mulch quantities with simple inputs and visible assumptions. Great for planning — still check labels, suppliers, and local requirements.

Estimate drywall →Find a construction calculator
Paint, drywall, drywall finishing, roofing, siding, house wrap/weather barrier, gutters/downspouts, soffit/fascia, trim/baseboard, quarter round/shoe molding, door/window casing, crown molding, caulk/sealant, sheathing, insulation, framing lumber, deck boards, stair stringers/treads, fence, pavers, gravel, topsoil, landscape fabric, rebar, concrete block, tile, and flooring
Concrete and mulch
Planning estimates
Project paths

Estimate common materials

Pick the right paint, drywall, drywall finishing, roofing, siding, house wrap/weather barrier, gutters/downspouts, soffit/fascia, trim/baseboard, quarter round/shoe molding, door/window casing, crown molding, caulk/sealant, sheathing panel, insulation, framing lumber, deck board, stair stringer/tread, fence, paver, gravel, topsoil, landscape fabric, rebar, concrete block, concrete footing, post-hole concrete, tile, flooring, concrete, or mulch estimator before checking supplier packaging.

Material estimators Drywall Drywall finishing Paint Roofing Gutters/downspouts Soffit/fascia Siding House wrap / WRB Trim/baseboard Quarter round/shoe molding Door/window casing Crown molding Caulk/sealant Insulation Deck boards Stair stringers/treads Framing lumber Sheathing panels Fence Pavers Gravel Topsoil Landscape fabric Rebar Concrete block Concrete footing Post-hole concrete Tile Flooring Concrete
Calculator finder

Find a construction calculator

Curated starting points

Search by goal, topic, or unit. Results update locally in your browser.

ConstructionPaint CalculatorEstimate gallons and quarts of paint from wall area, coats, coverage, and waste.ConstructionDrywall CalculatorEstimate drywall sheet count from surface area, openings, sheet size, and waste cushion.ConstructionDrywall Joint Compound / Tape EstimatorEstimate drywall joint compound, tape rolls, and corner bead from finish area, seam length, corners, coats, coverage, and waste.ConstructionFraming Lumber EstimatorEstimate studs, plates, headers, blocking, linear feet, and waste allowance for simple wall framing takeoffs.ConstructionSheathing Panel EstimatorEstimate plywood or OSB sheathing panels, net area after openings, waste, rough layout rows and columns, and fastener allowance.ConstructionFlooring CalculatorEstimate flooring boxes from room area, waste percentage, and box coverage.
Popular tools

Start with a useful one

These are the calculators people are most likely to need first.

Construction Paint Calculator

Estimate gallons and quarts of paint from wall area, coats, coverage, and waste.

Open calculator → Construction Drywall Calculator

Estimate drywall sheet count from surface area, openings, sheet size, and waste cushion.

Open calculator → Construction Drywall Joint Compound / Tape Estimator

Estimate drywall joint compound, tape rolls, and corner bead from finish area, seam length, corners, coats, coverage, and waste.

Open calculator → Construction Framing Lumber Estimator

Estimate studs, plates, headers, blocking, linear feet, and waste allowance for simple wall framing takeoffs.

Open calculator → Construction Sheathing Panel Estimator

Estimate plywood or OSB sheathing panels, net area after openings, waste, rough layout rows and columns, and fastener allowance.

Open calculator → Construction Flooring Calculator

Estimate flooring boxes from room area, waste percentage, and box coverage.

Open calculator → Construction Trim / Baseboard Material Estimator

Estimate baseboard, casing, or trim pieces, linear feet, waste, corner cuts, and fasteners.

Open calculator → Construction Quarter Round / Shoe Molding Material Estimator

Estimate quarter round, shoe molding, or base shoe pieces, adjusted linear feet, skipped openings, waste, corners, scarf joints, and fasteners.

Open calculator →

How to use this shelf

Best for

Use this shelf to estimate material quantities for projects like drywall, concrete, roofing, siding, framing, tile, paint, insulation, and trim.

Choose the right tool

Start with the main material estimator, then check accessories, waste, coverage, delivery minimums, and product-specific rules before buying.

Verify before acting

Check field measurements, product labels, local code, site conditions, waste, fasteners, trim, substrate prep, supplier rounding, and contractor guidance.

Suggested workflow: A useful project workflow is: measure the area, estimate material, increase waste for cuts or site conditions, then call the supplier with the worksheet.