Construction Calculators

Free online Construction calculators and tools.

Board Feet CalculatorCalculate board feet — the standard unit for pricing hardwood lumber — from board dimensions and quantity.Brick and Mortar Estimator CalculatorEstimates the number of bricks and bags of mortar needed for a wall based on its area.Cement Bags CalculatorEstimate the number of cement bags needed for a concrete pour, based on your volume and mix ratio (e.g. 1:2:4).Concrete Footing CalculatorEstimate the concrete volume needed for footings.Concrete Slab Volume and Bags CalculatorCalculates the concrete volume needed for a slab and how many bags of pre-mixed concrete that requires.Deck Board CalculatorEstimate the number of deck boards and total linear footage needed for a deck.Decking Board CalculatorCalculate the number of decking boards needed to cover a deck area, including a waste allowance.Drywall Sheets CalculatorEstimate the number of drywall sheets needed for a room.Excavation Volume and Truck Loads CalculatorCalculates the volume of soil to be excavated and how many truck loads it will take to haul away.Fence Material Estimator CalculatorEstimates the number of fence posts and total rail length needed based on perimeter, post spacing and rail rows.Fence Post CalculatorCalculate the number of fence posts needed based on total fence length and post spacing.Flooring Material Cost CalculatorCalculates the total material cost of flooring a room based on its area and the cost per square meter.Gravel Driveway Volume and Weight CalculatorCalculates the volume and weight of gravel needed for a driveway based on its dimensions and gravel density.Gutter Length CalculatorEstimate the total linear feet of gutter and number of downspouts needed for a home.Insulation Material CalculatorCalculate how many bags of insulation you need for an area and the total material cost.Mulch CalculatorCalculate how many cubic yards (or 2-cubic-foot bags) of mulch you need to cover an area at a given depth.Paint Quantity CalculatorCalculates how many liters of paint you need for a wall area given the number of coats and paint coverage.Paver Patio CalculatorEstimate the number of pavers needed for a patio.R-Value Insulation Calculator (Total from Layers)Calculate the total R-value of a wall, roof or floor assembly by adding up the R-values of each insulation layer.Rebar Calculator (Grid Pattern)Estimate the number and total length of rebar needed for a two-way grid pattern in a concrete slab.Roof Rafter Length and Pitch CalculatorCalculates rafter length from run and rise, plus the roof pitch expressed in the standard x-in-12 notation.Roof Shingle Bundle CalculatorCalculate the number of shingle bundles needed to cover a roof, including a waste allowance.Roofing Shingles CalculatorEstimate the number of shingle bundles needed for a roofing job.Sand CalculatorCalculate the volume and weight of sand needed to cover an area at a given depth.Stair Rise and Run CalculatorCalculates the rise per step from total staircase height and number of steps, and flags whether it falls in a typical comfortable range.Tile Flooring CalculatorCalculate how many tiles you need for a room based on its area, tile size and a waste allowance.Topsoil CalculatorCalculate how many cubic yards of topsoil you need to cover an area at a given depth.Wall Stud CalculatorCalculate how many wall studs you need for a wall based on its length and stud spacing.Wallpaper Rolls CalculatorCalculates how many whole rolls of wallpaper you need for a wall area, including a waste allowance.
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