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Cubic yard and cubic metre takeoffs for every common concrete pour shape, plus bag counts and mix proportioning. These are the…
Unit counts and mortar quantities for block, brick and segmental retaining wall work, plus the rebar layout and weight math that…
Stick-framing material counts, lumber measure and the trigonometry behind miter and bevel saw settings. Used by framers, finish…
Pitch, slope factor and rafter cut geometry plus shingle and roofing material takeoffs. Used by roofers, framers and insurance…
Code-driven stair geometry, deck framing and material counts, guard and handrail spacing, and fence layout. Heavily used by deck…
Interior and exterior surface-coverage takeoffs: drywall, joint compound, paint, tile and grout, siding and insulation. The…
Bulk material volume and tonnage conversions and earthwork quantities for driveways, trenches, pads and grading. Used by…
Beam, header and footing sizing plus the code-defined snow, wind and rigging loads that drive them. Used by residential…
The money and productivity side of construction: waste allowances, crew hours, unit costs, markup and margin. Used by estimators…
Most used in construction, carpentry & concrete
- Concrete Slab CalculatorASTM C94/C94MEnter the length, width and thickness of a slab and this calculator returns the concrete volume in cubic feet, cubic yards and…
- Concrete Footing CalculatorIRC 2021 §R403This calculator takes off the concrete in a foundation footing: a continuous strip running around a building perimeter or along…
- Concrete Bag CalculatorASTM C387/C387MThis calculator turns a concrete volume into a bag count. Work from slab dimensions, from post hole geometry, or from a volume…
- Concrete Block CalculatorASTM C90 units; ASTM C270 mortar; TMS 602 beddingThis calculator turns a wall dimension into a block order. Give it the length, height and nominal unit size and it returns the…
- Brick CalculatorASTM C216 brick sizes; BIA Technical NotesEnter the wall, pick the brick, and this calculator returns the three numbers a mason orders from: bricks per square foot…
- Rebar Spacing CalculatorACI 318-19 cover, spacing and splice provisionsGive this calculator a slab or footing plan, a bar spacing and a cover dimension and it lays out the grid: how many bars run…
- Wall Stud Count CalculatorIRC R602 wood wall framingEnter a wall length, a height and an on-centre spacing and this calculator returns the full stick count: layout studs, the…
- Board Foot CalculatorNHLA hardwood measure; PS 20 softwood sizesA board foot is a volume: 144 cubic inches of lumber, or a piece 1 inch thick, 12 inches wide and 1 foot long. Enter a board's…
- Floor Joist Span & Count CalculatorAWC NDS 2018 design equations; IRC Table R301.5 loadsThis calculator answers two questions a framer asks in the same breath: how far can this joist safely span, and how many of…
- Roof Pitch CalculatorIRC 2021 R905 slope limitsRoof pitch is written as rise in inches over a 12-inch run, but almost every calculation you need it for wants a different…
- Roof Area CalculatorSlope-factor method; 1 roofing square = 100 ft²You can take off an entire roof from the ground. Measure the building's length and width, read the pitch off a rafter or a…
- Rafter Length CalculatorIRC 2021 R802 rafter framingA common rafter is cut to a line length — the distance along its top edge from the ridge plumb cut to the heel of the…