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Free construction calculators for contractors, builders, estimators, and homeowners. Every tool runs in your browser — no account, no subscription, your numbers never leave your device.

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Estimates are planning aids verify quantities against your local codes and supplier quotes.

Tool category

Drywall, Tile & Finishes calculators

Sheet goods, paint gallons, flooring and tile box counts with layout waste built in. 7 free calculators below.

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  3. Drywall, Tile & Finishes

7 calculators

Every tool below is free results update live as you type.

Drywall
Wall Framing & Drywall PackFraming calculator for the full wall package — studs and plates plus drywall sheets, mud, and tape from room dimensions and openings. Free, no sign-up.Calculates: Stud countUse tool
Paint
Paint, Primer & Ceiling CoveragePaint calculator: enter room dimensions to get wall, ceiling, and primer gallons with doors and windows deducted for one or two coats. Free, no sign-up.Calculates: Wall gallonsUse tool
Flooring
Flooring & Baseboard Trim EstimatorFlooring calculator: enter room size to get plank boxes, underlayment rolls, and baseboard sticks per room, with layout waste included. Free, no sign-up.Calculates: Flooring boxesUse tool
Tile
Tile, Thinset & Grout CalculatorTile calculator: enter area and tile size to get tile boxes, thinset bags, and grout bags for floors, showers, backsplashes, waste included. Free, no sign-up.Calculates: Tile boxesUse tool
Insulation
Insulation Batt, Cellulose & R-Value SizerInsulation calculator for batt bundles or blown cellulose bags from target R-value. Net area, framing deductions, and installed thickness included. Free, no sign-up.Calculates: Bags / bundlesUse tool
Trim & Millwork
Crown Molding, Baseboard & Miter Cut EstimatorBaseboard calculator: enter your room perimeter and corner count to get trim boards, miter cut counts, and caulk tubes with waste included. Free, no sign-up.Calculates: Trim boardsUse tool
Drywall
Ceiling Texture, Popcorn & Drywall Mud SizerDrywall calculator: size texture bags or mud buckets, PVA primer gallons, and mixing water for any finish level, knockdown to Level 5 skim. Free, no sign-up.Calculates: Bags / bucketsUse tool
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