Construction & Home Improvement Calculators
Free, professional-grade estimating tools for homeowners, contractors, and DIY builders. Select a calculator below to get started.
Available Calculators
Soffit & Fascia Calculator
Estimate Materials, Panels, and Cost for Your Soffit and Fascia Project
Multiply the total linear feet of your eaves and rakes by the overhang width to get soffit square footage. Add 10–15% for waste.
Septic Tank Size Calculator
Estimate Tank Capacity, Drain Field Size, and Pumping Schedule
Most state codes require a minimum 1,000-gallon tank for a 1–3 bedroom home, 1,250 for 4 bedrooms, and 1,500 for 5–6 bedrooms.
Drain Field Size Calculator
Calculate Drain Field Area, Trench Length & Install Cost
Enter your soil type, bedroom count, and system type to get drain field area in sq ft, trench length, reserve area, and a full installation cost estimate.
CMU Block Calculator
Estimate Concrete Masonry Units, Mortar Bags, Rebar & Cost
A standard 8×8×16 CMU block covers approximately 0.89 sq ft of wall face. You need about 1.125 blocks per square foot.
Cinder Block Calculator
Estimate Cinder Blocks, Mortar, Rebar, Grout & Cost
Estimate the blocks and materials for a wall after openings, waste, reinforcement, and optional core fill are accounted for.
Decomposed Granite Calculator
Calculate Tons, Cubic Yards, and Cost for DG Projects
Multiply length × width × depth (in feet) to get cubic feet, divide by 27 for cubic yards, then multiply by 1.35 for tons.
Coming Soon
These calculators are currently in development.
River Rock Calculator
Bulk Material Coverage Estimator
Calculate the tons and cubic yards of river rock needed for drainage, decorative beds, and ground cover.
Pine Straw Calculator
Bale Count & Coverage Estimator
Estimate the number of pine straw bales needed for mulching beds, tree rings, and landscape areas.