Specialty Renovation Tools & Utilities
Deterministic, client-side construction tools designed to eliminate guesswork. Calculate exact 3D roof slope squares, deduct door and window openings for paint, and assemble itemized project budgets.
Specialty Planning & Material Calculators
3 Interactive ToolsItemized Renovation Budget Builder
Assemble materials, skilled trade labor, municipal permits, equipment rentals, and contingency buffers into an itemized project budget. Includes instant presets for kitchen, bath, roof, and flooring with printable summary and CSV export.
- ✓Pre-populated starter budgets for 4 major trade projects
- ✓Configurable local sales tax & emergency contingency buffer
- ✓Client-side execution with printable breakdown export
Roof Pitch & Area Geometry Calculator
Convert flat building footprint dimensions into true 3D sloped roof surface area using trigonometric rise/run pitch multipliers. Computes exact roofing squares and cutting waste allowances.
- ✓Trigonometric pitch multiplier formulas (e.g. 4/12 up to 12/12)
- ✓Square footage converted directly to material order squares
- ✓Configurable valley, ridge, and starter-strip waste margins
Paint Quantity & Gallon Estimator
Calculate exact net paintable wall surface area by deducting standard door and window openings from room perimeter and ceiling height. Accounts for single vs. double coats and gallon spread ratings.
- ✓Automatic deduction for doors (21 sq ft) and windows (15 sq ft)
- ✓Single vs. double coat multiplier calculations
- ✓Manufacturer coverage rates (350–400 sq ft / gallon)
Major Trade Estimators
Empirical cost calculators calibrated to Bureau of Labor Statistics (BLS) metro wage indexes.
Your numbers stay strictly in your browser.
Every calculator and budget utility runs offline arithmetic on your device. We do not require account registration, collect phone numbers, or route your project details to high-pressure lead brokers.