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Roof Truss CalculatorCalculate how many roof trusses you need from roof length and truss spacing. Free roof truss count calculator with on-center spacing.
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Asphalt CalculatorFree asphalt calculator estimates tons of hot-mix asphalt needed by length, width, and thickness using a 145 lb/ft³ density. Fast and accurate.
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Concrete Driveway Cost CalculatorEstimate the cost of a concrete driveway from its length, width, thickness, and price per cubic yard. Get cubic yards needed and total material cost.
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Crushed Stone CalculatorEstimate how many tons and cubic yards of crushed stone you need for driveways, patios and base layers from length, width and depth.
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Fire Flow CalculatorCalculate required fire flow (GPM) using the Iowa and National Fire Academy formulas from building length, width, and percent of area involved.
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Gravel Driveway CalculatorCalculate how much gravel you need for a driveway in tons, cubic yards, cubic feet and pounds. Enter length, width, depth and gravel density.
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Floor Joist CalculatorCalculate how many floor joists you need from floor length and on-center spacing (12, 16, 19.2, or 24 in). Fast framing estimate for builders.
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Insulation CalculatorCalculate how many bags of insulation you need. Enter room length, width, and coverage per bag to get total area and bags required, rounded up.
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Steel Weight CalculatorCalculate the weight of steel bars, plates and sheets from dimensions using weight = volume × density (≈7850 kg/m³). Supports round, square and rectangular sections.
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Tonnage CalculatorCalculate the tonnage of gravel, sand, soil or stone from length, width, depth and density. Get total weight in US short tons instantly.
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Stone Weight CalculatorEstimate the weight of a stone block from its length, width, height and density. Get results in kilograms, tonnes and pounds instantly.
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Board-on-Board Fence CalculatorCalculate how many boards (pickets) you need for a board-on-board fence based on fence length, board width, and overlap between boards.
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Vinyl Fence CalculatorEstimate how many vinyl fence panels and posts you need for your project. Enter total length and panel width to get materials and optional cost.
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Vinyl Siding CalculatorEstimate how many squares of vinyl siding you need. Enter wall area, subtract windows and doors, add a waste allowance — 1 square = 100 sq ft.
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Wall Square Footage CalculatorCalculate wall square footage by multiplying width by height and subtracting door and window openings. Get net paintable or coverable area in sq ft.
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Cement CalculatorCalculate how many bags of cement you need for a concrete slab or pour. Enter dimensions, mix ratio and bag volume to estimate cement bags.
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Concrete Block CalculatorFree concrete block calculator. Enter wall and block dimensions to estimate how many CMU blocks you need, including a waste allowance.
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Concrete Column CalculatorCalculate concrete volume for round or rectangular columns. Enter diameter or width/depth, height, and quantity to get m³ and cubic yards instantly.
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Concrete Block Fill CalculatorCalculate how much concrete you need to fill the voids in concrete blocks (CMU). Enter block count and void volume to get cubic feet and cubic yards.
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Concrete Stairs CalculatorCalculate concrete volume for stairs from step count, rise, run, width and platform. Get cubic meters, cubic yards, weight and premix bag estimates.
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Hole Volume CalculatorCalculate the volume of a cylindrical hole from its diameter and depth. Get results in cubic units, liters, and US gallons instantly.
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Concrete Weight CalculatorCalculate the weight of a concrete slab, footing or pour from its dimensions. Uses density ≈ 2400 kg/m³ (150 lb/ft³). Metric & imperial.
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Grout CalculatorEstimate how much grout you need for a tiling project from tile size, joint width, thickness and total area. Get volume in cubic inches, cubic feet and pounds.
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Mortar CalculatorEstimate how many bags of mortar you need for a brick or block wall. Enter block count, mortar per block, bag yield and waste allowance.
