🏗️ Construction & DIY Tools
Free calculators for construction, home improvement, and DIY projects. Estimate materials, plan builds, save money.
Board Foot Calculator
Calculate board feet for lumber purchases — with common size presets, nominal vs actual dimensions, project list, and price estimation
Brick Calculator
Calculate how many bricks and how much mortar you need for a wall — with brick size presets, mortar joint thickness, openings, and waste factor
Concrete Calculator
Calculate how much concrete you need for slabs, footings, columns, posts, and stairs — with bag estimates and waste factor
Cubic Yard Calculator
Calculate cubic yards for any project — enter dimensions for one or multiple zones, choose a material for weight estimates, and get total volume with cost
Drywall Calculator
Calculate how many drywall sheets you need — plus screws, joint compound, and tape estimates
Gravel Calculator
Calculate how much gravel you need for driveways, patios, walkways, and landscaping — with weight estimates by gravel type and bag counts
Lawn Area Calculator
Calculate lawn area for any shape — rectangle, circle, triangle, L-shape, or custom. Get seed and sod estimates for your yard size.
Mulch Calculator
Calculate how much mulch you need for garden beds, tree rings, and pathways — with bag estimates by mulch type and coverage area
Paint Calculator
Calculate how much paint you need for walls and ceilings — with door and window exclusions, number of coats, and coverage rate
Roof Pitch Calculator
Calculate roof pitch from rise and run — get angle in degrees, slope percentage, and ratio (e.g. 4:12)
Sand Calculator
Calculate how much sand you need for sandboxes, paver bases, leveling, and masonry — with weight in tons and bag estimates
Tile Calculator
Calculate how many tiles you need for floors or walls — with pattern waste, grout gaps, box rounding, and cost estimate