Builexa.Plan it before you start
Builexa / Home project planning

Know what to buy
before you start.

Practical calculators for quantities, costs, shopping lists, and the measurements behind common home projects.

Tools / 01

Popular calculators

Open a tool, enter your measurements, and get quantities, cost assumptions, and a shopping list.

Walls & finishes

Paint Calculator

Find your gallons before you pick a color.

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Landscape & garden

Mulch Calculator

Plan garden beds by depth, bags, or bulk.

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Groundwork & drainage

Gravel Calculator

Estimate stone volume and tons with confidence.

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Roof & exterior

Roofing Calculator

Plan shingles by roof area and pitch.

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Hardscaping & masonry

Concrete Calculator

Estimate slab volume and bag equivalents.

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Driveway & renovation

Driveway Cost Calculator

Compare driveway materials and planning costs.

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Project areas / 02

Browse by category

Choose the kind of work you are planning.

Painting & finishes

Measure walls, plan paint coverage, and compare the supplies needed before a room refresh.

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Flooring, tile & grout

Plan flooring cartons, tile boxes, and grout packages from measured floor area and product coverage.

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Landscape & groundwork

Plan bed coverage, lawn materials, soil depth, and outdoor ground preparation.

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Concrete & hardscaping

Estimate concrete and pavers for slabs, patios, paths, and masonry projects.

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Decking & outdoor living

Plan surface deck boards and the measurements behind an outdoor living project.

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Fencing & boundaries

Lay out a straight panel run, count posts and concrete, and check spacing before you dig.

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Roofing & roof measurements

Turn rise and run into roof pitch, then estimate roof area and shingle bundles.

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Drywall & wallboard

Estimate drywall sheets from wall runs, height, openings, and the coverage of your chosen board.

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Insulation planning

Estimate insulation packages by wall area while checking coverage and assembly requirements separately.

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Driveways & renovation costs

Compare driveway surfaces and build an early renovation budget using adjustable local cost assumptions.

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Cost planning / 03

Cost calculators

Adjust unit prices and project assumptions to see a material estimate or an early project-cost range. These are planning figures, not contractor quotes.

Material calculators exclude installation. Driveway and renovation ranges use broad editable assumptions; taxes, delivery, and site conditions can change actual costs.
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01Interior painting materialsWall paint by room size and coats02Landscape mulch materialsBagged mulch by bed size and depth03Gravel materialsStone volume, tonnage, and price04Fence materialsPanels, posts, and concrete05Roof shingle materialsBundles by footprint and pitch06Concrete slab materialsCubic yards, bag yield, and price07Tile materialsFloor area, boxes, and cut allowance08Grout packagesTiled area and product coverage09Flooring materialsRoom area, cartons, and cost10Drywall sheetsWall area, openings, and sheet count11Decking boardsSurface boards, width, and spacing12Lawn sodLawn area and supplier roll coverage13Patio paversPaver count by face coverage14TopsoilArea, depth, and bulk volume15Driveway aggregateOne layer by volume and tonnage16Driveway surface costCompare broad rates for gravel, asphalt, concrete, or pavers17Wall insulationWall area and package coverage18Home renovation budgetArea, project type, local rates, and contingency

Recently used calculators and saved projects will appear here when you use them.