9 free tools in this category
Professional-grade construction calculators for estimating materials, costs, and project requirements. Get accurate estimates for concrete, lumber, drywall, and more.
Calculate exact BTU, tonnage, and kW needed for HVAC sizing. Enter room dimensions, climate zone, and insulation for precise heating and cooling estimates.
Free concrete calculator. Enter length, width, and depth to instantly calculate how many cubic yards and bags of concrete you need for your project.
Calculate deck boards, joists, screws, and hardware needed for your project. Get material estimates and cost comparisons for pressure-treated, cedar, or composite.
Calculate fence materials including posts, rails, pickets, and concrete bags for privacy, picket, and shadowbox fences. Custom post spacing and gate hardware.
Calculate exactly how many drywall sheets, joint compound, tape, and screws you need for your project. Supports multi-room estimation and different sheet sizes.
Calculate exactly how much gravel you need for your driveway, patio, or walkway. Get cubic yards, tons, cost estimates, and delivery tips for 10 gravel types.
Calculate how much insulation you need based on climate zone and R-value requirements. Get material estimates for batts, blown-in, spray foam, and rigid board.
Calculate board feet, linear feet, and costs for lumber projects. Converts nominal to actual dimensions for 2x4, 2x6, 2x8, and all common lumber sizes.
Free paver calculator for patios, walkways, and driveways. Estimates pavers needed, base gravel, bedding sand, and edge restraint for all sizes and patterns.