Working tools

Construction calculator directory

Open a calculator directly, or browse its material hub for measurement guides, charts, and ordering checks.

Calculate now

Choose a working calculator.

Each tool keeps units, formulas, assumptions, and calculation stages visible.

Material Conversion

Aggregate Weight-Volume Calculator

Convert aggregate between weight and volume in metric or imperial units using the product's bulk density. No default density: the value, unit, and condition you enter stay visible.

Open calculator
Asphalt

Asphalt Calculator

Calculate compacted asphalt volume and optional tonnage from project dimensions, in-place density, documented allowance, supplier increment, and truck capacity.

Open calculator
Foundation

Basement Slab Calculator

Calculate basement interior slab concrete from inside-wall dimensions, with thickened edge, identical column pads, sump-pit and blockout deductions, and supplier-increment order rounding, in metric or imperial units.

Open calculator
Material Conversion

Board Foot Calculator

Convert lumber dimensions to board feet in metric or imperial units, with per-piece and total board feet, MBF and cubic-metre equivalents, a staged planning allowance, and optional order cost.

Open calculator
Concrete

Bond Beam Concrete Calculator

Calculate grout volume for bond beam courses from beam length, width, and course count, in metric or imperial units, with measured volume kept separate from planning volume and optional whole packages.

Open calculator
Brick

Brick Calculator

Calculate wall bricks from net area and a verified coverage rate or face module. Keep bond correction, allowance and supplier pack rounding separate.

Open calculator
Landscaping

Compost Calculator

Calculate a direct compost layer or compost share of a measured mix zone, then estimate planning volume and whole packages from the current label.

Open calculator
Concrete

Concrete Bags Calculator

Calculate finished concrete volume and whole packages for rectangular, round, or known-volume pours using the current mixed yield on the product label.

Open calculator
Concrete

Concrete Beam Calculator

Calculate concrete volume for constant rectangular beams and estimate whole bags from the exact product's current mixed yield.

Open calculator
Concrete

Concrete Block Calculator

Estimate standard concrete masonry units from net wall area using a verified nominal module or actual face size plus joint, with openings and allowance shown separately.

Open calculator
Concrete

Concrete Column Calculator

Calculate concrete volume for round, square, or rectangular columns and estimate whole bags from the exact product's current mixed yield.

Open calculator
Concrete

Concrete Countertop Calculator

Calculate cast concrete volume for one straight countertop run, with an optional backsplash, a thickened front edge, and a sink cutout deduction, plus a planning volume and whole bags from your label yield.

Open calculator
Concrete

Concrete Footing Calculator

Calculate concrete volume for approved strip, repeated pad and stepped footing sections, deduct verified overlaps, and keep measured and planning quantities separate.

Open calculator
Concrete

Concrete Overlay Calculator

Calculate a thin concrete overlay for an existing slab from its footprint and the product data-sheet thickness, with coats, a planning volume, and whole bags from your label yield.

Open calculator
Concrete

Concrete Post Hole Calculator

Calculate net concrete for straight round, tapered round, or rectangular post holes, subtract verified post displacement, and estimate whole bags from current product yield.

Open calculator
Concrete

Concrete Slab Calculator

Calculate concrete slab area and volume for rectangular, circular, or known-area plans, including square-edged perimeter thickening and a verified deduction.

Open calculator
Concrete

Concrete Stairs Calculator

Calculate concrete volume for a straight flight of stairs: solid or waist-slab construction, optional landing, measured and planning volumes, and whole-package counts from the product's own yield.

Open calculator
Material Conversion

Concrete Units Calculator

Convert one known concrete quantity across volume, weight, and bag units. Volume numbers are exact by definition; weight and bag numbers use the unit weight and yield you enter, with no defaults.

Open calculator
Concrete

Concrete Wall Calculator

Calculate net concrete volume for constant-thickness rectangular walls, deduct approved openings, and estimate whole bags from the exact product yield.

Open calculator
Material Conversion

Jobsite Metric-Imperial Calculator

Convert one jobsite measurement across metric and imperial units: length, area, volume, weight, and temperature. Every factor is an exact definition; the converter adds no defaults or allowances.

Open calculator
Material Conversion

Coverage-to-Purchase Converter Calculator

Convert a measured or checked coverage quantity into exact selling units and rounded-up purchase units, with separate per-product allowance and surplus, in metric or imperial units.

Open calculator
Concrete

Curb and Gutter Calculator

Calculate concrete volume for a straight curb-and-gutter run in metric or imperial units from the section dimensions and run length, with a separate optional planning allowance.

Open calculator
Earthwork & Drainage

Cut and Fill Calculator

Calculate cut and fill volumes between two cross-sections with the average end area method, with a net balance, a pyramid correction for a zero end area, and optional user-entered swell and shrinkage stages, in metric or imperial units.

Open calculator
Decking

Deck Board Calculator

Calculate straight deck-board rows, installed linear feet and a conservative whole-stock-board quantity from actual face width, gap and stock length.

Open calculator
Gravel

Drainage Gravel Calculator

Calculate drainage gravel for a rectangular trench zone, subtract actual pipe outside-diameter volume, and prepare a supplier-rounded order.

Open calculator
Gravel

Driveway Gravel Calculator

Calculate separate placed and supplier-order quantities for a gravel driveway base and surface layer, including a uniformly tapered footprint.

Open calculator
Earthwork & Drainage

Dry Well Volume Calculator

Calculate a gravel-filled dry well pit's gross volume, effective water storage in gallons or litres, and loose stone order, with the void ratio kept as a supplier-confirmed input.

Open calculator
Drywall

Drywall Calculator

Calculate net drywall area, an area-based sheet lower bound, and horizontal and vertical rectangular-grid quantities from measured surface, panel and opening dimensions.

Open calculator
Drywall

Drywall Corner Bead Calculator

Calculate drywall corner-bead stock pieces from identical complete runs or a reviewed direct takeoff, then add allowance, deduct matching stock and round packages.

Open calculator
Drywall

Drywall Joint Compound Calculator

Calculate product-specific drywall joint compound volume or dry mass, optional allowance, whole containers and package-rounding remainder from finished board area.

Open calculator
Drywall

Drywall Screw Calculator

Calculate drywall screws from an approved per-panel schedule or direct takeoff, then add allowance, deduct usable stock and round to whole boxes.

Open calculator
Drywall

Drywall Tape Calculator

Calculate drywall joint tape from measured seams and inside corners or a published area rate, then see allowance, whole rolls and roll remainder.

Open calculator
Concrete

Expansion Joint Calculator

Calculate approved concrete isolation-joint length, rectangular sealant volume, whole packages, filler length, and whole rolls in metric or US customary units.

Open calculator
Landscaping

Fill Dirt Calculator

Calculate uniform or wedge-shaped in-place fill, then apply a documented loose-order adjustment, handling allowance, and optional supplier density.

Open calculator
Flooring

Flooring Calculator

Calculate net floor area, a documented allowance, whole planks or pieces, full boxes and box surplus from current product coverage.

Open calculator
Concrete

Flowable Fill Calculator

Calculate flowable fill for one straight trench or rectangular void in metric or imperial units, deducting round pipe volume, with a separate planning allowance and a mixer-load check from an entered capacity.

Open calculator
Foundation

Footing Excavation Volume Calculator

Calculate excavation volume for pad, round, and strip footings in metric or imperial units, with identical-pit count, optional swell, and truck-load planning.

Open calculator
Foundation

Foundation Backfill Calculator

Calculate net placed foundation backfill by subtracting the concrete structure from the measured excavation, then convert it to a loose order quantity with a stated compaction allowance. Metric or imperial.

Open calculator
Foundation

Foundation Drainage Gravel Calculator

Calculate placed gravel for a foundation perimeter drain ring from plan dimensions, minus full-perimeter pipe displacement, with a supplier-rounded order quantity.

Open calculator
Foundation

Foundation Wall Concrete Calculator

Calculate poured foundation wall concrete from wall segments or a rectangular-plan centreline shortcut, in metric or imperial units, with measured volume kept separate from a user-controlled planning allowance.

Open calculator
Earthwork & Drainage

French Drain System Calculator

Calculate a full French drain system record for one straight run: bank excavation, stone envelope, pipe displacement, net stone, topsoil cap, fabric area, fall, and a supplier-rounded stone order.

Open calculator
Foundation

Grade Beam Concrete Calculator

Calculate concrete volume for constant rectangular grade beams at ground level, with staged measured and planning results and optional whole-package counts from the current mixed yield.

Open calculator
Gravel

Gravel Calculator

Calculate gravel area and measured volume in metric or imperial units, with separate optional allowance and supplier-density mass stages.

Open calculator
Tile

Grout Calculator

Calculate whole grout packages from current product coverage and check theoretical joint volume from tile size, joint width, filled depth and tiled area.

Open calculator
Concrete

ICF Block Calculator

Count ICF blocks for one straight wall run by course layout, deduct openings by area, and calculate concrete core volume separately, in metric or imperial units.

Open calculator
Brick

Masonry Mortar Calculator

Calculate whole mortar-mix bags from a checked brick or block count and the selected product's current units-per-bag coverage, with allowance and package surplus shown separately.

Open calculator
Landscaping

Mulch Calculator

Calculate mulch volume from bed area, target depth and retained usable depth, then estimate whole bags from the current package label.

Open calculator
Paint

Paint Calculator

Calculate net wall and ceiling area, coated area, exact paint volume and full containers using separate current coverage records.

Open calculator
Pavers

Paver Calculator

Calculate net paved area, a documented allowance, whole pavers and full bundles from current product coverage or verified rectangular paver dimensions.

Open calculator
Sand

Paver Sand Calculator

Calculate paver bedding-sand volume from area and selected depth, then estimate bulk orders, bedding packages, and joint-sand bags from current product inputs.

Open calculator
Foundation

Pier Footing Concrete Calculator

Calculate concrete volume for one or more identical pier footings: a square or round base pad plus a square or round pier shaft, in metric or imperial units, with measured volume kept separate from a user-controlled waste planning stage.

Open calculator
Sand

Play Sand Calculator

Calculate play sand for rectangular, round, or known-area sandboxes, with optional displacement, wall-height, supplier-density, and package checks.

Open calculator
Sand

Pool Base Sand Calculator

Calculate an approved flat pool-base sand layer for round, racetrack-oval, rectangular, or manufacturer-stated footprints, with optional mass and bag planning.

Open calculator
Concrete

Ready-Mix Concrete Calculator

Calculate measured, planning, and supplier-rounded ready-mix volume, then check an optional load split using current supplier delivery rules.

Open calculator
Concrete

Rebar Calculator

Calculate a rectangular single rebar mat by maximum spacing, bar-centerline edge offset, lap, stock length, allowance, and entered unit mass.

Open calculator
Roofing

Roof Area Calculator

Calculate sloped roof area from a rectangular horizontal projection and pitch, convert it to roofing squares, and round through current package coverage.

Open calculator
Sand

Sand Calculator

Calculate sand volume from area and depth, then estimate weight from supplier density or bags from the manufacturer's volume yield.

Open calculator
Concrete

Shotcrete Volume Calculator

Calculate shotcrete placed volume from measured area and average placed thickness, then adjust separately for overbreak and rebound to reach an order volume, in metric or imperial units.

Open calculator
Earthwork & Drainage

Sloped-Trench Excavation Calculator

Calculate sloped-trench excavation volume from bottom width, depth, and side-slope ratio, with bank volume and a separate user-entered swell loose volume, in metric or imperial units.

Open calculator
Material Conversion

Soil Bag-to-Yard Converter Calculator

Convert a bagged soil count to exact cubic yards, cubic feet, cubic metres, and litres in metric or imperial units, with optional per-bag weight outputs from the label figure.

Open calculator
Earthwork & Drainage

Stockpile Volume Calculator

Calculate stockpile loose volume for a cone, a circular flat-top frustum, or a triangular windrow, with identical-pile totals, an implied side-slope check, and an optional user-entered density mass stage, in metric or imperial units.

Open calculator
Foundation

Strip Footing Concrete Calculator

Calculate concrete volume for a continuous strip footing run in metric or imperial units, with measured volume kept separate from a user-controlled waste planning stage.

Open calculator
Earthwork & Drainage

Swale Ditch Volume Calculator

Calculate swale ditch excavation volume from measured top width, bottom width, vertical depth, and run length in metric or imperial units, with bank volume and a separate user-entered swell loose volume.

Open calculator
Tile

Tile Adhesive Calculator

Calculate tile adhesive bags from net floor or wall area and the selected product's current package coverage or consumption rate.

Open calculator
Tile

Tile Calculator

Calculate net floor or wall tile area, a documented allowance, whole tiles and full cartons from current product coverage or verified tile dimensions.

Open calculator
Landscaping

Topsoil Calculator

Calculate placed topsoil volume, a documented loose-delivery quantity, handling allowance, and whole packages from current product data.

Open calculator
Earthwork & Drainage

Trench Excavation Calculator

Calculate rectangular trench volume in metric or imperial units, with optional user-controlled swell and truckload planning.

Open calculator
Drywall

Wall Plate Calculator

Calculate bottom- and top-plate linear length, allowance, matching stock deduction and whole lumber pieces without mixing separate product rows.

Open calculator
Drywall

Wall Stud Calculator

Calculate field studs for separate straight wall runs from an approved on-centre spacing, then add checked extra framing, allowance and matching stock.

Open calculator

Material hubs

Continue through the estimate.

Use a hub when you also need coverage, material-state, weight, supplier, or measurement guidance.

1 working calculator · 12 resources

Asphalt

Calculate compacted asphalt volume and tonnage, check the density and layer state behind the result, and keep supplier rounding separate from measured quantity.

Open Asphalt hub
2 working calculators · 24 resources

Brick

Calculate brick wall area and openings, choose a verified coverage or module basis, and keep bond correction, allowance and supplier packs separate.

Open Brick hub
19 working calculators · 92 resources

Concrete

Choose a concrete quantity calculator by purchasing method, verify the required inputs, and keep volume, package yield, allowance, and design scope separate.

Open Concrete hub
1 working calculator · 4 resources

Decking

Measure deck-board fields, verify product inputs, calculate stock quantities, and prepare cut, joint, offcut and allowance records.

Open Decking hub
7 working calculators · 51 resources

Earthwork & Drainage

Plan trench excavation and related earthwork quantities with the current calculator, visible formulas, and documented assumptions.

Open Earthwork & Drainage hub
1 working calculator · 32 resources

Flooring

Measure net floor area, apply a documented allowance and calculate whole flooring boxes from the selected product's current package coverage.

Open Flooring hub
8 working calculators · 47 resources

Foundation

Plan footing excavation quantities: pit volumes, spoil, and truck loads, with measurement, ordering, and safety guides.

Open Foundation hub
3 working calculators · 21 resources

Gravel

Choose a gravel calculator, coverage guide, size chart, weight chart, or cost worksheet for measuring and ordering.

Open Gravel hub
4 working calculators · 15 resources

Landscaping

Choose landscaping quantity tools for mulch, soil, compost, fill and rock while keeping depth, material condition and supplier units separate.

Open Landscaping hub
6 working calculators · 34 resources

Material Conversion

Convert supplier units to orderable quantities: aggregate weight-volume, board feet, bag counts, with measurement and ordering guides.

Open Material Conversion hub
1 working calculator · 28 resources

Paint

Measure wall and ceiling area, deduct openings, apply separate coat and coverage records, and calculate full paint containers.

Open Paint hub
1 working calculator · 4 resources

Pavers

Measure paved areas, deduct excluded zones, apply a documented allowance and round paver quantities to current bundle coverage.

Open Pavers hub
1 working calculator · 38 resources

Roofing

Calculate roof surface area, roofing squares and optional package quantities while keeping pitch, allowance and product coverage visible.

Open Roofing hub
4 working calculators · 31 resources

Sand

Choose a sand calculator, coverage chart, or material guide for volume, depth, supplier density, package yield, and ordering checks.

Open Sand hub
3 working calculators · 36 resources

Tile

Calculate tile and adhesive quantities from measured floor or wall area, current carton coverage, and product-specific adhesive coverage.

Open Tile hub