Construction Calculators

Estimate concrete volume for slabs, footings, walls, columns and post holes.

Calculate floor, wall, lot and surface area in square feet.

Turns coverage dimensions and layer depth into cubic volume.

Estimate paint quantity from surface area, coats and product coverage.

Estimate sloped roof area and roofing material requirements.

Hardwood and rough-sawn lumber are often priced by volume rather than by simple length or surface area.

Estimate roof pitch for practical construction and project planning.

Estimate tile quantities for floors and walls, including cuts and waste.

Estimate flooring quantities from measured area, box coverage and waste.

Stair layout turns a total vertical rise into a practical number of risers and matching tread geometry.

Converts measured surfaces into sheet count and can add a waste allowance for practical ordering.

Estimates board runs and material length, then adds a waste allowance for cuts and offcuts.

Helps turn measured fence runs into practical component quantities before special posts and gates are added.

Turns length, width and depth into cubic yards without requiring you to handle cubic-foot conversion manually.

Estimate concrete block for practical construction and project planning.

Asphalt quantity for a driveway or pavement section depends on area, compacted thickness and mix density.

Pipework can hold a surprising amount of fluid once a run becomes long or the bore becomes large.

Tank capacity starts with the vessel’s internal geometry, not its outside shell dimensions.

Estimate brick for practical construction and project planning.

Estimate insulation for practical construction and project planning.

Sand is commonly ordered by volume or weight for bedding, masonry, landscaping and construction.

Turns measured exterior surfaces into a purchase area.

Helps turn wall measurements into roll quantity.

Combines required quantity with unit price to estimate the direct purchase cost of a project material.

Estimates reinforcing-bar quantity from slab, wall or footing dimensions and the chosen bar spacing.

Estimates the volume of soil or material removed from a trench, footing, pit or rectangular cut.

Estimates the number of vertical framing studs required along a wall from wall length and chosen on-centre spacing.

Estimate paver for practical construction and project planning.

Estimates the sloping length from horizontal run and roof rise or pitch.

Estimate joist for practical construction and project planning.

Provides quantity estimates from wall length, height and unit dimensions.

Trench quantity calculations help estimate excavation volume for utilities, drainage, footings and landscaping.

Concrete footing estimates focus on the volume of concrete below a wall, column or structural support.

Concrete slab quantity depends on plan area and thickness.

A gravel driveway estimate combines driveway area with the thickness of each aggregate layer.

Concrete column quantity depends on the column cross-section, height and number of columns.

Helps estimate concrete for monolithic steps from rise, run, width and number of steps.

Mortar quantity depends on masonry unit size, joint thickness, wall area and the type of masonry work.

Estimate concrete wall for practical construction and project planning.

Concrete beam quantity depends on cross-sectional width, depth and beam length.

Concrete curb estimates convert curb length and cross-sectional dimensions into concrete volume.

Aggregate base quantity depends on finished area, compacted thickness and material density.

Board and batten spacing calculations help lay out repeated battens evenly across a wall or panel.

Estimates the actual sloped surface area of a roof from building footprint dimensions and roof pitch.

Estimate concrete ramp for practical construction and project planning.

Estimates the amount of grout needed to fill joints between tiles.

Estimates how much carpet is needed from room dimensions, roll width and layout.

Estimate air changes per hour for practical construction and project planning.

Estimates how many posts are needed along a fence line and the resulting centre-to-centre spacing.

Estimates how much of an electrical raceway’s internal cross-sectional area is occupied by conductors.

Estimates the number of prefabricated panels and supporting posts needed for a fence run.

Estimate ceiling tile for practical construction and project planning.

Estimates how many standard sheets are needed to cover a floor, wall, roof deck or fabrication area.

Estimate brick wall for practical construction and project planning.

Estimates the number of deck boards needed from deck dimensions, board width and the planned gap between boards.