Construction & DIY Calculators
Browse PlanDIYBuild's project tools by category, or browse all 39 free calculators. Open the calculator that matches your job; each dedicated tool provides its own measurements, assumptions and material estimate.
Planning a shower pan or mortar bed? Go directly to the Deck Mud / Floor Mud Calculator for square footage, bed thickness, mortar volume and bags needed.
Browse by project
Concrete Calculators
Estimate concrete volume, bags, slabs, post holes, footings, patios and driveways.
Browse tools →Deck & Fence Calculators
Plan deck boards, joists, screws, footings, fence posts, pickets, spacing and materials.
Browse tools →Landscaping Calculators
Estimate pavers, permeable pavers, gravel, mulch, soil, sod, grass seed, river rock and landscape materials.
Browse tools →Flooring & Tile Calculators
Calculate flooring and tile coverage, waste allowances and boxes to buy.
Browse tools →Walls & Paint Calculators
Estimate paint, drywall and wallpaper quantities for interior projects.
Browse tools →All calculators
Concrete Calculator
Concrete project takeoff with volume, ready-mix/bags, forms, base and optional reinforcement, vapor barrier, control-joint material and curing compound.
Calculate →▦Concrete Slab Calculator
Calculate concrete for a slab, patio, shed pad or walkway with bag equivalents.
Calculate →▦Concrete Bag Calculator
Find how many 40-lb, 60-lb or 80-lb concrete bags your project needs.
Calculate →●Post Hole Concrete Calculator
Estimate concrete bags for round fence, deck and mailbox post holes.
Calculate →▰Concrete Footing Calculator
Estimate concrete for continuous strip footings by length, width and depth.
Calculate →▦Concrete Patio Calculator
Estimate concrete volume and bags for a rectangular patio.
Calculate →▥Concrete Driveway Calculator
Estimate cubic yards for a concrete driveway with adjustable slab thickness and extra material.
Calculate →▤Paint Calculator
Room paint takeoff with whole-can paint plus optional primer, caulk, patching and masking purchase quantities.
Calculate →▥Flooring Calculator
Flooring-system takeoff with product class, substrate, cartons and optional underlayment, vapor barrier and transition purchase quantities.
Calculate →≋Mulch Calculator
Complete mulch estimate with bed area, depth, bulk cubic yards and common 2- and 3-ft³ bag quantities.
Calculate →◆Gravel Calculator
Complete gravel calculator estimate with area, volume, bulk quantity, approximate weight and bag equivalents.
Calculate →|||Fence Calculator
Complete wood fence material estimate with posts, rails, pickets, foundations, gate hardware and optional finish quantities.
Calculate →≡Deck Board Calculator
Estimate board rows, linear footage, waste and fasteners for a deck surface.
Calculate →▯Drywall Calculator
Room-wall drywall takeoff with sheets, screws, compound, tape plus optional corner bead and primer.
Calculate →▦Tile Calculator
Tile-system takeoff with tile, mortar, grout and optional membrane/waterproofing purchase quantities using project-specific coverage inputs.
Calculate →▰Topsoil Calculator
Complete topsoil estimate with area, depth, bulk cubic yards and common bag quantities.
Calculate →▧Wallpaper Calculator
Room wallpaper takeoff that uses the pattern repeat on the label to estimate packaged rolls.
Calculate →▦Paver Calculator
Purchase-ready paver takeoff with material type, adjustable base and bedding depths, selected restrained edges, stake spacing and joint-sand coverage.
Calculate →|||Fence Post Spacing Calculator
Calculate how many fence posts and bays you need from total fence length and maximum post spacing.
Calculate →|||Fence Picket Calculator
Estimate individual fence pickets from fence length, picket width and gap.
Calculate →●Fence Post Concrete Calculator
Calculate fence posts, concrete per post, total concrete bags and drainage gravel from your fence length and post spacing.
Calculate →|||Privacy Fence Materials Calculator
Estimate posts, rails and pickets for a basic wood privacy fence run.
Calculate →≡Deck Materials Calculator
Rectangular deck planning takeoff with purchasable decking boards, framing, footings and optional attached-deck ledger/flashing quantities.
Calculate →≡Deck Joist Calculator
Calculate joist quantity from deck width and on-center joist spacing.
Calculate →•Deck Screw Calculator
Estimate deck surface screws from board rows and joist spacing.
Calculate →●Deck Footing Concrete Calculator
Estimate concrete bags for cylindrical deck pier or footing holes.
Calculate →▦Deck Mud / Floor Mud Calculator
Estimate dry-pack deck mud or floor mud volume and bags from area, minimum and maximum thickness, bag yield and extra material.
Calculate →▰Paver Base Calculator
Complete paver base calculator estimate with area, volume, bulk quantity, approximate weight and bag equivalents.
Calculate →≋Paver Sand Calculator
Complete paver sand calculator estimate with area, volume, bulk quantity, approximate weight and bag equivalents.
Calculate →▦Mulch Bags per Yard Calculator
Convert cubic yards of mulch to common bag quantities, with a dedicated two-way converter and reference chart.
Calculate →◆Gravel Yards to Tons Calculator
Convert cubic yards of gravel to approximate tons using an adjustable material-density assumption.
Calculate →●Pea Gravel Calculator
Complete pea gravel calculator estimate with area, volume, bulk quantity, approximate weight and bag equivalents.
Calculate →◆River Rock Calculator
Complete river rock calculator estimate with area, volume, bulk quantity, approximate weight and bag equivalents.
Calculate →▰Raised Bed Soil Calculator
Complete raised-bed soil estimate with volume, bulk yards and common bag sizes for one or more beds.
Calculate →▥Sod Calculator
Complete sod takeoff with lawn area, waste, roll or piece quantity and approximate pallets.
Calculate →≋Grass Seed Calculator
Complete grass-seed estimate using lawn area and the seeding rate printed on the product.
Calculate →▦Permeable Paver Calculator
Plan a permeable paver patio, walkway or driveway with pavers, open-graded bedding, base, reservoir stone, joint aggregate and excavation quantities.
Calculate →≋Polymeric Sand Calculator
Estimate polymeric joint-sand bags from paver area and the coverage printed on the product bag.
Calculate →▥Wall Framing Planner
Plan wall studs, plates, doors, windows, headers, cripples, blocking, sheathing and framing purchase quantities with a live wall elevation.
Calculate →