DIY Toolkit: Build Calculator

Measure once, buy right. DIY Toolkit turns your measurements into an exact shopping list for floors, walls, roofs, decks, concrete, fences and gardens, with a live blueprint for every job and a PDF estimate you can print or send. 30 CALCULATORS IN ONE APP • Flooring: laminate, vinyl and hardwood boxes, underlayment and baseboard (doorways and open walls left out) • Tile: tiles, boxes, grout and adhesive • Paint: walls and ceilings, doors and windows left out, coats, primer and the cheapest set of cans • Wallpaper: rolls with pattern repeat, openings optional • Drywall: sheets, screws, joint tape and compound • Carpet: roll width, the best direction, seams and pad • Insulation: packs, depth and R-value • Concrete: slabs, footings, round holes and steps, premix bags, ready-mix and an optional rebar grid • Stairs: risers, treads, stringers, headroom and landing checks • Roof & rafters: gable or hip, rafter length, hips and jacks, squares, shingle bundles, drip edge • Deck: boards, joists, beams, posts, footings and joist hangers • Wall framing: studs, plates and headers • Siding: walls and gables, boxes, starter strip, corner posts and J-channel • Brick & block: units per wall and mortar • Ramp: accessible slope, runs, landings and handrails • Mulch, gravel, topsoil and sand: cubic yards, tons and bags • Pavers: pavers, base gravel, bedding sand and edging • Fence: posts, rails, pickets and post concrete, on level ground or slopes • Lawn: sod pieces and pallets, or grass seed • Pool volume: gallons, litres and fill time • Area and square footage of any shape • Board feet for lumber • AC & heating: BTU size for a room • Feet-inch calculator with fractions down to 1/16″ • Unit converter, including roof and ramp slope PRO TOOLS • Right triangle: diagonal, angles, pitch and 3-4-5 squaring from any two values • Miter & crown: saw settings for any corner, polygon frames and compound miter + bevel for crown molding • Circle & arch: radius, arc length and angle from the width and height of an arch • Cut list: fits your pieces onto the fewest stock boards, with blade kerf and a cutting diagram • Rafter plumb and seat cut angles and jack rafter steps SEE IT BEFORE YOU BUY IT Every calculator draws your project on a blueprint as you type: planks, tiles, rooms with doors and windows, slabs, staircases, roofs, decks with their joists, stud walls, siding, pools and ramps. Tilt plan views into 3D, or open the drawing full screen and pinch to zoom. EXACT, NOT GUESSWORK • Exact unit factors and real-world rules: layout waste, grout joints, pattern repeat, compaction and settling, racked fences, hip factors • Building checks: stair riser and tread limits, comfort rule, headroom, landings, ramp slope and width • Purchasable items always round up, so you never come home one box short • "How it's calculated" shows every step of the math FEET, INCHES AND FRACTIONS — OR METRIC Type 12′ 6½″ on a keypad made for tape measures, or switch to metres and millimetres with one tap. Defaults match what stores sell in your units. PROJECTS, COSTS AND PDF ESTIMATES • Save calculations into projects: the bathroom, the backyard, the new deck • Add prices once and see the cost of each material and the project total • One combined shopping list you can tick off at the store • Notes and photos for every project • Share a PDF estimate with drawings, materials and costs, or plain text • Back up and restore your projects DESIGNED TO BE A PLEASURE TO USE • Dark workshop theme and a light theme • Hand-drawn icons, smooth animations, haptics and soft click sounds • Search, category filters, favorites and recent calculators • Works fully offline, on phone and tablet Free with ads. One purchase removes all ads. Every calculator is free either way. Results are estimates for planning: always check product labels and your local building code.