Free Decor Calculators and Planning Tools
Use these free project calculators to estimate sizes, materials, lighting, and budgets before you start buying supplies. The goal is simple: fewer wrong purchases, better layouts, and cleaner finished projects.
Free tools · No signup required · Practical project estimates
Epoxy Resin Calculator
Estimate resin volume in ounces, liters, and gallons for trays, molds, tabletops, and fantasy decor pours.
Calculate resin volumeLED Strip Light Calculator
Plan LED strip length for shelves, rooms, cabinets, and display lighting before choosing a kit.
Plan LED strip lengthPatio Budget Estimator
Estimate a realistic patio makeover budget across seating, lighting, planters, rugs, and decor.
Estimate patio budgetOutdoor String Light Calculator
Calculate string light length for patios, pergolas, fences, balconies, and backyard seating zones.
Calculate string light lengthOutdoor Rug Size Calculator
Choose the right patio rug size for seating areas, dining sets, balconies, and full lounge layouts.
Find your rug sizeFairy Garden Planner
Estimate supplies and starter budget for container, patio, balcony, or backyard fairy garden scenes.
Plan a fairy gardenPergola Lighting Planner
Estimate string light length, anchor points, and shopping needs for a pergola, gazebo, arbor, or covered patio.
Plan pergola lightingTerrarium Supply Calculator
Estimate drainage, soil, charcoal, moss, plants, decor pieces, and starter budget for open, closed, or fantasy terrariums.
Calculate terrarium suppliesHidden Bookshelf Door Calculator
Estimate hidden bookshelf door size, swing clearance, shelf depth, and starter budget before buying a kit.
Plan a hidden doorFloating Shelf Spacing Calculator
Plan shelf count, vertical gaps, bracket points, and buying direction for display walls, coffee bars, reading nooks, and fantasy rooms.
Plan shelf spacingHow to use these tools
Start with the calculator closest to your project, then use the result as a planning estimate before buying. Always verify dimensions, product specs, installation instructions, and outdoor ratings on the actual listing.
More tools coming next
Epoxy Cure Time Estimator
Estimate cure windows by pour depth, temperature, and resin type before moving or sanding.