# DIYProject.ai

> Free DIY and home-improvement calculators, cheat sheets, and guides, plus AI-powered project planning. Figure out how much material a job takes, look up the code or spec you need, then plan the whole project.

DIYProject.ai is the free public content site for Blueprint, a home maintenance and project tracker built by Parra. It carries 52 material and sizing calculators, 104 reference cheat sheets, topic hubs, comparison pages, and a blog. Everything listed below is public, needs no account, and the calculators run in the browser. The product itself (web app plus a native iOS app) lives at https://blueprinthome.app and is a paid subscription: $7.99/month or $49.99/year, with a 7-day free trial on the annual plan. There is no free tier of the app; the calculators and cheat sheets on this site are free to use and need no account.

## Free tools

- [Paint Calculator](https://diyproject.ai/calculators/paint): Calculate paint needed for any room based on dimensions and number of coats
- [Flooring Calculator](https://diyproject.ai/calculators/flooring): Determine flooring materials needed for any room shape with waste factor
- [Drywall Calculator](https://diyproject.ai/calculators/drywall): Calculate drywall sheets, joint compound, and fasteners needed
- [Insulation Calculator](https://diyproject.ai/calculators/insulation): Determine R-value requirements and insulation materials by climate zone
- [Deck Calculator](https://diyproject.ai/calculators/deck): Calculate lumber, joists, posts, and hardware for deck building
- [Concrete Calculator](https://diyproject.ai/calculators/concrete): Calculate cubic yards of concrete for slabs, footings, and columns
- [Concrete Slab Wizard](https://diyproject.ai/calculators/concrete-slab): Draw any slab shape and get a full materials list, tools, cost, and step-by-step plan
- [Concrete Stairs Calculator](https://diyproject.ai/calculators/concrete-stairs): Estimate concrete, rebar, forms, and steps for poured concrete stairs
- [Concrete Column & Pier Calculator](https://diyproject.ai/calculators/concrete-column): Calculate concrete and rebar for round or square columns, piers, and posts
- [Concrete Footing & Wall Calculator](https://diyproject.ai/calculators/concrete-footing): Size concrete for footings and stem walls with rebar and form materials
- [Fence Calculator](https://diyproject.ai/calculators/fence): Determine posts, rails, pickets, and materials for any fence project
- [Tile Calculator](https://diyproject.ai/calculators/tile): Calculate tiles, grout, and thinset for floors, walls, and backsplashes
- [Roofing Calculator](https://diyproject.ai/calculators/roofing): Calculate shingles, underlayment, and materials based on roof area and pitch
- [Mulch & Soil Calculator](https://diyproject.ai/calculators/mulch): Calculate cubic yards of mulch, soil, gravel, or stone needed
- [Stair Calculator](https://diyproject.ai/calculators/stairs): Calculate rise, run, stringers, and materials for building stairs
- [Crown Molding Calculator](https://diyproject.ai/calculators/crown-molding): Calculate linear feet and cutting angles for crown molding installation
- [Wallpaper Calculator](https://diyproject.ai/calculators/wallpaper): Determine rolls needed based on room size and pattern repeat
- [Blinds Calculator](https://diyproject.ai/calculators/blinds): Add multiple windows by dimension to calculate total blinds needed
- [Lumber Calculator](https://diyproject.ai/calculators/lumber): Calculate studs, plates, and lumber for framing projects
- [Gravel & Stone Calculator](https://diyproject.ai/calculators/gravel): Calculate tons or cubic yards for driveways, pathways, and drainage
- [Gutter Calculator](https://diyproject.ai/calculators/gutter): Calculate gutter materials, downspouts, and hardware needed
- [Brick & Block Calculator](https://diyproject.ai/calculators/brick): Calculate masonry units and mortar for walls and structures
- [Trim & Baseboard Calculator](https://diyproject.ai/calculators/trim): Calculate interior trim, baseboards, and molding materials
- [Cabinet Hardware Calculator](https://diyproject.ai/calculators/cabinet-hardware): Determine optimal placement and spacing for cabinet hardware
- [Energy Savings Calculator](https://diyproject.ai/calculators/energy-savings): Calculate ROI and payback period for energy efficiency upgrades
- [All 52 calculators](https://diyproject.ai/calculators): the full index, grouped by trade.
- [Before and After Photo Maker](https://diyproject.ai/tools/before-after-photo-maker): build a shareable before/after image from two project photos.
- [Rate My Reno](https://diyproject.ai/tools/rate-my-reno): stamp a renovation photo with a scorecard (effort, budget, grout game, final grade) and share it.

## Cheat sheets

- [Electrical Work](https://diyproject.ai/cheat-sheets/electrical): Wire gauges, circuit breaker sizes, electrical codes, and safety guidelines
- [Concrete Mixing & Pouring](https://diyproject.ai/cheat-sheets/concrete): Mix ratios, curing times, reinforcement guidelines, and finishing techniques
- [Drywall Installation & Repair](https://diyproject.ai/cheat-sheets/drywall): Hanging techniques, taping procedures, mud consistency, and repair methods
- [Painting Guide](https://diyproject.ai/cheat-sheets/painting): Surface prep, primer selection, paint types, techniques, and coverage rates
- [Plumbing Basics](https://diyproject.ai/cheat-sheets/plumbing): Pipe sizes, fittings, codes, soldering techniques, and common repairs
- [Measuring & Layout](https://diyproject.ai/cheat-sheets/measuring): Measurement conversions, layout techniques, squaring methods, and tools
- [Framing Guide](https://diyproject.ai/cheat-sheets/framing): Stud spacing, header sizes, fastener schedules, and framing techniques
- [Nails, Screws & Fasteners](https://diyproject.ai/cheat-sheets/fasteners): Fastener types, sizes, applications, and installation guidelines
- [Essential Tools Guide](https://diyproject.ai/cheat-sheets/tools): Tool selection, maintenance, safety, and proper usage techniques
- [Safety Guidelines](https://diyproject.ai/cheat-sheets/safety): PPE requirements, safety protocols, hazard identification, and first aid
- [Deck Building](https://diyproject.ai/cheat-sheets/deck-building): Ledger installation, joist spacing, railing codes, and material selection
- [Grout Haze Removal Guide](https://diyproject.ai/cheat-sheets/grout-haze-removal): Quick-reference chart for removing haze from different tile materials with correct cleaning solutions
- [Trim Molding Profile Identifier](https://diyproject.ai/cheat-sheets/trim-molding-profiles): Visual glossary of common architectural trim pieces with cross-section profiles and names
- [Adhesive Compatibility Matrix](https://diyproject.ai/cheat-sheets/adhesive-compatibility): Detailed chart comparing adhesive types and optimal use across challenging materials
- [PEX Plumbing Pipe Sizing Chart](https://diyproject.ai/cheat-sheets/pex-plumbing-sizing): Reference table showing maximum flow rate and recommended pipe size for PEX tubing
- [PEX Flow Rate Chart](https://diyproject.ai/cheat-sheets/pex-flow-rate): Manufacturer flow rate, velocity and pressure loss per 100 ft for 3/8, 1/2, 3/4 and 1 inch PEX
- [Lead Paint & Asbestos Safety Checklist](https://diyproject.ai/cheat-sheets/lead-asbestos-safety): Mandatory steps for identifying and safely containing hazardous materials before renovation
- [Wood Species Performance Guide](https://diyproject.ai/cheat-sheets/wood-species-guide): Chart comparing wood species by hardness, grain, rot resistance, and optimal finish type
- [Drywall Texture Repair Guide](https://diyproject.ai/cheat-sheets/drywall-texture-repair): Visual sheet illustrating common wall textures with instructions on matching and repair
- [Fastener Withdrawal/Shear Strength](https://diyproject.ai/cheat-sheets/fastener-strength): Simplified chart showing holding power of common nail and screw types in standard lumber
- [NEMA Electrical Plug Chart](https://diyproject.ai/cheat-sheets/nema-electrical-plugs): Visual guide identifying standard North American plug configurations and their usage
- [Power Tool Blade & Accessory Matrix](https://diyproject.ai/cheat-sheets/power-tool-blade-matrix): Chart matching ideal saw blade, router bit, or drill bit to specific materials
- [PEX Crimp Tool Calibration Guide](https://diyproject.ai/cheat-sheets/pex-crimp-calibration): Reference sheet detailing gauge measurements and calibration procedures for PEX tools
- [Plumbing Vent Pipe Sizing (DWV)](https://diyproject.ai/cheat-sheets/plumbing-vent-sizing): Chart specifying minimum diameter and length limits for drain, waste, and vent pipes
- [Caulk Joint Size & Application Guide](https://diyproject.ai/cheat-sheets/caulk-joint-guide): Details maximum joint size for different sealant types and when to use sanded vs unsanded
- [All 104 cheat sheets](https://diyproject.ai/cheat-sheets): the full reference index.

## Guides and topic hubs

Each topic hub gathers the calculators, cheat sheets, and blog posts for one trade.

- [Painting & Finishes](https://diyproject.ai/topics/painting): Paint, stain, wallpaper, and surface finishing calculators, guides, and tips.
- [Flooring & Tile](https://diyproject.ai/topics/flooring): Estimate and install hardwood, laminate, vinyl plank, and tile flooring.
- [Drywall & Insulation](https://diyproject.ai/topics/drywall-insulation): Hang drywall, patch textures, and hit the right R-value for your walls.
- [Framing & Carpentry](https://diyproject.ai/topics/framing-carpentry): Framing, lumber, stairs, and woodworking math for structural projects.
- [Trim, Molding & Cabinets](https://diyproject.ai/topics/trim-cabinets): Crown molding, baseboard, casing, and cabinet layout and installation.
- [Concrete & Masonry](https://diyproject.ai/topics/concrete-masonry): Concrete volume, mix ratios, brick, block, and retaining wall estimates.
- [Decks, Fences & Patios](https://diyproject.ai/topics/decks-fences): Build and estimate decks, fences, patios, and outdoor structures.
- [Roofing & Gutters](https://diyproject.ai/topics/roofing-gutters): Roofing materials, pitch, gutters, and downspout sizing.
- [Electrical](https://diyproject.ai/topics/electrical): Circuits, load, voltage drop, wiring, and room-by-room electrical guides.
- [Plumbing](https://diyproject.ai/topics/plumbing): Pipe sizing, venting, fixtures, water heaters, and drainage.
- [HVAC & Climate](https://diyproject.ai/topics/hvac): Ductwork sizing, refrigerant lines, filters, and heating/cooling loads.
- [Landscaping & Outdoor](https://diyproject.ai/topics/landscaping): Mulch, gravel, sprinklers, pools, and yard project estimates.
- [Tools & Workshop](https://diyproject.ai/topics/tools): Power tool guides, blade matrices, measuring, and workshop reference.
- [Doors & Windows](https://diyproject.ai/topics/doors-windows): Install and size doors, windows, blinds, flashing, and overhangs.
- [Energy & Efficiency](https://diyproject.ai/topics/energy): Solar payback, energy audits, weatherstripping, and efficiency upgrades.
- [Home Maintenance & Safety](https://diyproject.ai/topics/home-maintenance): Inspections, permits, mold, waterproofing, and seasonal upkeep.
- [Smart Home & Low-Voltage](https://diyproject.ai/topics/smart-home): Smart devices, low-voltage wiring, and TV/AV mounting.
- [Appliances & Fixtures](https://diyproject.ai/topics/appliances-fixtures): Countertops, disposals, dryer vents, and kitchen/laundry appliance installs.
- [All topics](https://diyproject.ai/topics): every topic hub.

## Blog

- [The best free home maintenance apps in 2026](https://diyproject.ai/blog/best-free-home-maintenance-apps): The best free home maintenance apps in 2026, and where each free tier actually holds up. Honest picks for tracking upkeep, appliances, and records, including one of ours.
- [The best DIY and home improvement Facebook groups in 2026](https://diyproject.ai/blog/best-diy-facebook-groups): Seven active Facebook groups where DIYers get real answers, how to post a question that gets fixed, and the jobs where crowd advice will cost you money.
- [The 10 best apps for DIYers in 2026](https://diyproject.ai/blog/best-diy-apps): The ten apps worth keeping on your phone as a DIYer in 2026: project planning, measuring, 3D design, cut lists, home records, maintenance, and knowing when to call a pro. Honest picks, including one of ours.
- [How to make money from DIY projects](https://diyproject.ai/blog/how-to-make-money-from-diy-projects): Discover proven strategies to turn your DIY skills into a profitable side hustle or full-time business. Learn how to price your work, find clients, and maximize your earning potential.
- [How to stay organized when DIY-ing](https://diyproject.ai/blog/how-to-stay-organized-when-diy-ing): Learn essential organization strategies to keep your DIY projects on track, on budget, and stress-free. From planning to cleanup, we cover it all.
- [All posts](https://diyproject.ai/blog): the full archive.

## Comparisons

- [DIYProject.ai vs HomeZada](https://diyproject.ai/compare/homezada): Feature-heavy, web-first home-management suite with inventory, maintenance, projects, and home-finance tracking, priced at the top of the market.
- [DIYProject.ai vs HomeBinder](https://diyproject.ai/compare/homebinder): A free-for-life 'home binder' you can only get through an inspector, agent, or lender. Now a division of iGo, whose homepage sells a utility-setup concierge. No iPhone app.
- [DIYProject.ai vs Centriq](https://diyproject.ai/compare/centriq): The beloved 'snap the nameplate, get the manual' app. It shut down on January 31, 2026, and its app has been pulled from the App Store.
- [DIYProject.ai vs Dwellin](https://diyproject.ai/compare/dwellin): Now 'Dwellin Rewards': a $99/yr membership that pays you points and cash rebates for doing maintenance, wrapped around a 10-year upkeep plan.
- [DIYProject.ai vs Dwellable](https://diyproject.ai/compare/dwellable): An indie iPhone home app that pulls smart-property details from public records and leans on AI-assisted onboarding, plus weekly content.
- [DIYProject.ai vs Homer](https://diyproject.ai/compare/homer): The most polished home binder on the market: photo-scan a nameplate, forward receipts by email, scan a LiDAR floor plan. Apple App of the Day, and the app Centriq pointed its users toward.
- [DIYProject.ai vs HomeManager](https://diyproject.ai/compare/homemanager): A newer iPhone home app with a 'claim your home', a monthly maintenance list, and photo/video inventory, priced at $80/year.
- [DIYProject.ai vs HomeKeep](https://diyproject.ai/compare/homekeep): A builder-distributed maintenance app, now owned by ECI Software Solutions. There is no public signup: if your builder doesn't offer it, you can't get it.
- [DIYProject.ai vs Tended](https://diyproject.ai/compare/tended): A 'CARFAX for your stuff': a web tool that verifies maintenance with receipts and photos, then transfers the record to a buyer. Vehicle-first, with home as one of five asset types.
- [DIYProject.ai vs Dib](https://diyproject.ai/compare/dib): An AI-native home-records app (iOS, Android, and web) with a free Centriq importer, photo-scan item capture, and daily recall monitoring. Still in beta.
- [All comparisons](https://diyproject.ai/compare): the comparison hub and feature table.

## Product

- [AI-Powered Project Planner](https://diyproject.ai/features/ai-project-planner): Plan smarter, not harder
- [Tools & Supplies Tracking](https://diyproject.ai/features/tools-supplies-tracking): Know what you own, find what you need
- [Quotes & Contractor Management](https://diyproject.ai/features/quotes-contractors): Compare quotes, maximize savings
- [DIY Calculators](https://diyproject.ai/features/calculators): Calculate with confidence
- [DIY Cheat Sheets](https://diyproject.ai/features/cheat-sheets): Quick reference guides at your fingertips
- [Community Forums](https://diyproject.ai/features/community-forums): Learn from fellow DIYers
- [DIY Wishlist](https://diyproject.ai/features/wishlist): Track and share what you want
- [Property Management](https://diyproject.ai/features/property-management): Organize your home details
- [Home Maintenance](https://diyproject.ai/features/home-maintenance): Never miss important upkeep
- [All features](https://diyproject.ai/features): what Blueprint does.
- [Home](https://diyproject.ai/): product overview and the free tool index.
- [About](https://diyproject.ai/about): who builds DIYProject.ai and why.
- [Community](https://diyproject.ai/community): DIY communities and where to ask questions.
- [Contact](https://diyproject.ai/contact): how to reach us.
- [Privacy](https://diyproject.ai/privacy): what is collected and what is not.
- [Terms](https://diyproject.ai/terms): terms of service.

## Crawl guidance

- Full sitemap: https://diyproject.ai/sitemap.xml
- Every page listed above is public and needs no sign-in. The prose, tables and reference values render server-side; the calculators themselves are client components, so their interactive results need JavaScript.
- Calculators compute entirely client-side. Nothing is submitted anywhere.
- Sizing, span, and load figures are estimates for planning. Local code governs, and permitted or structural work should be confirmed with an inspector or engineer.
- The signed-in app and its API live on https://blueprinthome.app and are excluded by robots.txt there. See https://blueprinthome.app/llms.txt for the product surface.