Construction Calculators - HammerIO

Concrete, roofing, flooring and construction cost calculators.

HammerIO Construction Calculators gives you instant access to 17+ construction estimation tools directly from your browser toolbar. Whether you're a professional contractor, DIY enthusiast, or homeowner planning a project, HammerIO helps you estimate materials, costs, and quantities accurately. FEATURES: • Concrete Calculator — Calculate cubic yards of concrete needed for slabs, footings, columns, and walls. Includes waste factor and ready-mix truck loads. • Roofing Calculator — Estimate roofing materials (shingles, underlayment, nails, ridge caps) based on roof dimensions and pitch. Supports multiple roofing types. • Flooring Calculator — Calculate square footage and materials for hardwood, tile, laminate, vinyl, and carpet. Includes waste percentage and cost estimation. • Fence Calculator — Estimate fence materials including posts, rails, pickets, concrete, and hardware. Supports wood, vinyl, and chain-link fence types. • Drywall Calculator — Calculate sheets of drywall needed for walls and ceilings. Includes joint compound, tape, screws, and corner bead estimates. • Retaining Wall Calculator — Estimate blocks, gravel, and drainage materials for segmental retaining walls. Supports different wall heights and setback angles. • Paint Calculator — Calculate gallons of paint needed based on room dimensions, number of coats, and door/window cutouts. • Lumber Calculator — Estimate board feet and linear feet for framing, decking, and trim projects. Includes common lumber dimensions and pricing. PRIVACY & PERFORMANCE: ✓ 100% offline — all calculations happen locally in your browser ✓ Zero data collection — your project data never leaves your device ✓ Lightweight — no impact on browser performance ✓ No account required — install and start estimating immediately ✓ Industry-standard formulas and waste factors Visit hammerio.com for the complete construction suite including city-specific construction cost data for 350+ cities and construction industry statistics.