DIY Calculators
Plan your project with precision. Our free suite of calculators helps you estimate materials, costs, and measurements for any DIY or woodworking task.
Woodworking
Board Foot Calculator
Calculate lumber volume and cost based on dimensions.
Cut Optimization
Optimize cuts to minimize waste for plywood and lumber.
Golden Ratio
Design aesthetically pleasing furniture using divine proportions.
Shelf Sag Calculator
Determine if your shelf will sag under load based on material.
Stair Calculator
Calculate rise, run, and stringer layout for stairs.
Construction & Material
Concrete Volume
Calculate bags of concrete needed for slabs and footings.
Roof Pitch & Area
Estimate roofing materials and rafter lengths.
Paint Calculator
Estimate liters of paint needed for walls and ceilings.
Tile Calculator
Calculate number of tiles needed for floors and walls.
Wallpaper Estimator
Find out how many rolls of wallpaper you need.
Garden & Outdoor
Mulch Calculator
Estimate cubic yards of mulch for garden beds.
Fence Calculator
Estimate posts, rails, and pickets needed for fencing.
Decking Calculator
Calculate decking boards and fasteners required.
Plant Water Needs
Estimate water requirements for your garden area.