DIY and construction calculators for planning materials, sizing rooms, and getting quantities right the first time — from concrete and lumber to paint, wiring, and project budgets. Pick a category to dive in.
Measuring & Layout
Square footage, linear foot, room/wall/ceiling area, board foot, cut list, waste factor, material estimator, project cost.
Painting & Finishing
Paint coverage, primer, stain, wallpaper, drywall mud, caulk, sealant — finish-side material math for any room.
Flooring & Tile
Flooring, tile, vinyl plank, laminate, hardwood, carpet, grout, underlayment — area and waste math.
Walls & Drywall
Drywall sheets, stud count, insulation, soundproofing, shiplap, wainscoting — frame and finish a wall correctly.
Woodworking & Carpentry
Plywood, lumber, shelf span, deck and fence boards, stair stringers, cabinet doors, drawer boxes, pocket hole spacing.
Outdoor & Landscaping
Mulch, soil, gravel, concrete, pavers, retaining wall block, fence, deck cost, sod, garden bed soil.
Electrical & Lighting
Lighting layout, recessed light spacing, LED strip length, dimmer load, wire gauge, outlet spacing, circuit load, generator size.
Plumbing
Pipe volume, water flow rate, drain slope, water heater size, faucet flow savings, PEX length.
HVAC & Energy
BTU sizing, room heater and AC size, ventilation, attic insulation, energy savings.
Roofing & Exterior
Roofing shingles, roof pitch, gutter size, siding, fascia board, soffit — building envelope math.
Concrete & Masonry
Concrete slabs, concrete bags, mortar, brick, block wall, rebar — pour and lay-up math.
Fasteners & Hardware
Screw and nail quantities, anchor load, bolt spacing, hinge placement — right hardware count.
Budget & Planning
DIY project budget, contractor-vs-DIY cost, labor time, tool rental, material markup, project timeline.
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