Construction
Free construction calculators for paint, concrete, flooring, fencing, and drywall. Estimate materials and costs for your DIY projects.
Paint Calculator
Calculate how much paint you need for your project
Concrete Calculator
Calculate concrete needed for your project
Tile Calculator
Calculate tiles needed for your project
Fence Calculator
Calculate fence materials needed
Mulch Calculator
Calculate mulch needed for your garden
Flooring Calculator
Calculate flooring materials and costs
Drywall Calculator
Calculate drywall sheets and supplies
Gravel Calculator
Calculate gravel tons and costs
Free Construction & DIY Calculators
Plan your construction and home improvement projects with confidence. Our calculators help you estimate materials, calculate costs, and avoid waste for painting, flooring, concrete, roofing, and more.
Why Use Our Construction Calculators?
Material Estimates
Calculate exactly how much paint, concrete, lumber, or flooring you need.
Cost Planning
Estimate project costs before you start to stay on budget.
Waste Reduction
Order the right amount of materials to minimize waste and extra trips.
DIY Friendly
Simple inputs designed for homeowners tackling projects themselves.
Professional Grade
Accurate calculations contractors can rely on for bids and planning.
Multiple Units
Work in feet, meters, yards, or whatever units you prefer.
How to Use Construction Calculators
Select the calculator for your project type - paint, flooring, concrete, etc.
Measure your space and enter dimensions accurately.
Account for doors, windows, and other areas that don't need material.
Review the material quantity needed plus recommended overage.
Use the estimate for purchasing and project planning.
Common Use Cases
Painting Projects
Calculate gallons needed for walls, ceilings, and trim including primer and multiple coats.
Flooring Installation
Determine square footage and add appropriate waste factor for tile, hardwood, or carpet.
Concrete Work
Calculate cubic yards for patios, driveways, footings, and slabs.
Roofing Estimates
Figure out squares of shingles and underlayment needed for roof replacement.
Frequently Asked Questions
Generally add 10% for paint and simple projects, 10-15% for flooring (more for diagonal patterns), and 5-10% for concrete. Complex shapes or inexperienced installers need more overage.