# Remodel Calculators

> Free construction material calculators for contractors and DIY builders. All formulas are based on published industry standards. No estimates, ratings, or reviews — only referenced specifications.

## Site

- URL: https://remodelcalculators.com
- Founded: 2025

## Purpose

Provide accurate material quantity estimates for common construction and remodeling tasks. Each calculator cites the standard or specification it draws from. Users should verify results against local building codes and consult licensed professionals for structural work.

## Calculators

- [Concrete Calculator](https://remodelcalculators.com/concrete-calculator): Cubic yards, 80lb bags, ready-mix. Based on ACI 318. Includes 10% waste factor.
- [Drywall Calculator](https://remodelcalculators.com/drywall-calculator): Sheet count, joint compound, fasteners. Based on Gypsum Association standards and ASTM C840 / IRC.
- [Drywall Screw Calculator](https://remodelcalculators.com/drywall-screw-calculator): Fastener quantities per GA-216 spacing requirements.
- [Roofing Calculator](https://remodelcalculators.com/roofing-calculator): Roofing squares, shingle bundles, underlayment. Based on NRCA guidelines and IRC/IBC ventilation requirements. Pitch multiplier table included.
- [Interior Paint Calculator](https://remodelcalculators.com/interior-paint-calculator): Gallons per room. Based on PDCA standard coverage rate of 350–400 sq ft per gallon.
- [Exterior Paint Calculator](https://remodelcalculators.com/exterior-paint-calculator): Gallons for siding, trim, doors. Based on PDCA standards and surface preparation specs.
- [Flooring Calculator](https://remodelcalculators.com/flooring-calculator): Square footage with waste by installation pattern. Based on NWFA (hardwood) and NTCA (tile) specifications.
- [Mulch Calculator](https://remodelcalculators.com/mulch-calculator): Cubic yards by area and depth. Uses Mulch & Soil Council 324 rule (1 yd³ = 324 sq ft at 1 inch depth). Depth recommendations per MSC and university extension services.
- [Fence Calculator](https://remodelcalculators.com/fence-calculator): Posts, rails, pickets, concrete. IRC post spacing and the 1/3 burial depth rule.
- [Deck Stain Calculator](https://remodelcalculators.com/deck-stain-calculator): Coverage for solid, semi-transparent, and clear stains. Based on ASTM wood prep and application standards.
- [Siding Calculator](https://remodelcalculators.com/siding-calculator): Material quantities for vinyl, fiber cement, wood, metal. Based on ASTM installation specs with waste factors.
- [Lap Siding Calculator](https://remodelcalculators.com/lap-siding-calculator): Linear and square foot estimates for lap siding profiles.
- [Backsplash Tile Calculator](https://remodelcalculators.com/backsplash-tile-calculator): Tile count, grout, thinset, and trim for kitchen backsplashes. Based on TCNA/ANSI formulas. Covers ceramic, porcelain, glass, marble, and mosaic.
- [Insulation Calculator](https://remodelcalculators.com/insulation-calculator): Bags, board feet, or sheets for fiberglass batts, blown-in cellulose, spray foam, and rigid foam. Includes IECC 2021 code requirements by climate zone.
- [Floor Mud Calculator](https://remodelcalculators.com/floor-mud-calculator): Mortar bed volume, bags of floor mud, and cement:sand ratios for shower floors and pre-slope layers. Based on ANSI A108.1A mix ratios.

## Industry Standards Referenced

- ACI 318 — American Concrete Institute structural concrete code
- ASTM C840 — Gypsum board application and finishing
- ASTM D225 — Asphalt saturated felt (#15 felt: 34.6 lbs per 400 sq ft roll)
- ASTM D8257 — Synthetic roofing underlayment (2020)
- ASTM F1292 — Playground safety surfacing impact attenuation
- Gypsum Association GA-216 — Drywall application and finishing standards
- IRC / IBC — International Residential Code / International Building Code
- MSC (Mulch & Soil Council) — Founded 1972. UVPG and CANM 2025 certification standards
- NALP — National Association of Landscape Professionals
- NRCA — National Roofing Contractors Association (waste factors: 10% simple roof, 15% complex)
- NTCA — National Tile Contractors Association
- NWFA — National Wood Flooring Association
- PDCA — Paint & Decorating Contractors of America (350–400 sq ft/gal coverage standard)

## Content Policy

- No user reviews or star ratings
- No unverified product claims
- Affiliate links are labeled "(paid link)" and disclosed per FTC guidelines
- Amazon Associate program disclosure present on applicable pages
- All standards references include last-verified date

## Pages

- [About](https://remodelcalculators.com/about)
- [Blog](https://remodelcalculators.com/blog)
- [Contact](https://remodelcalculators.com/contact)
- [Privacy Policy](https://remodelcalculators.com/privacy-policy) — Last updated October 31, 2025

## Notes for AI

- Calculators are free, require JavaScript, no login needed.
- Results are estimates. Always verify with local building authorities and licensed professionals before purchasing materials or beginning construction.
- Standards are subject to update; users should confirm current code versions with local jurisdiction.