Construction Calculator vs Craftmetry

Build faster, measure smarter. Pro² is a complete construction calculator for decking, roofing, concrete, stairs, framing and precise on-site measurements. It’s made for builders, carpenters, contractors and serious DIY who need accurate answers in seconds. DECKING & FLOORING • Area, board runs, spacing and waste allowance • Material takeoff for boards and joists ROOFING (METAL & TILE) • Coverage and sheet/tile counts • Overhangs, pitch, angle and rafter length helpers STAIRS & STRINGERS • Rise/run, slope %, angle (°) and stringer length • Clear breakdowns and step-by-step visuals BALUSTERS, RAILING & EVEN SPACING • Perfect marks from 0 to full length • Spacing tables for clean, consistent layouts CONCRETE, ASPHALT, GRAVEL & SOIL • Volume estimators for slabs, pads, footings and fills • Smart rounding for real-world quantities SLOPE, PITCH & ANGLES • Fast framing helpers for cuts and layout • Metric and imperial support in every tool UNIT CONVERTER • Length, area, volume, density and weight • Built for mixed-unit jobs (mm, ft, inches) QUICK CALCULATOR • Running history with one-tap copy/share MADE FOR THE JOBSITE • Fraction support and practical defaults • Works fully offline—no signal required • Clean visuals that stay readable outdoors WHY PROS USE PRO² • One app instead of juggling multiple separate tools • Accurate results, simple inputs and clear diagrams • New tools and improvements arrive regularly based on user feedback Pro² is built for professional construction, carpentry, decking, roofing and framing work—yet intuitive enough for DIY home projects. Upgrade to unlock additional tools and advanced features when you’re ready to grow your toolkit. SUBSCRIPTION TERMS • Carpenter Pro is an optional auto-renewing subscription with Weekly and Annual plans. • A 3-day free trial is available on the Annual plan. • Payment is charged to your Apple ID and subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. • You can manage or cancel your subscription in your App Store account settings. • Lifetime is a one-time purchase and does not auto-renew. • The localized price is shown in-app before you confirm. Terms of Use (Apple EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://shapkin.dev/apps/carpenter/privacy.html

Craftmetry turns construction sizing tables and everyday jobsite math into fast, practical field tools for contractors, tradespeople, and serious DIYers. TOOLS INCLUDED Stair Calculator Calculate risers, treads, stair count, total rise, and layout. Review a detailed stringer-cut diagram and save named calculations. Square-Up Calculator Use the Pythagorean theorem to find a diagonal or missing side for square layouts and right triangles. Gas Line Sizing Quick-size natural gas and propane lines, or build a visual piping system with appliances, BTU loads, pipe lengths, and longest-length sizing guidance. Waterline Sizing Estimate PEX-A supply sizing from fixture demand or direct flow, and lay out separate hot and cold systems. Deck Joist Sizing Check common deck-joist sizing based on span, spacing, species, grade, and loading assumptions. Voltage Drop & Wire Size Estimate voltage drop or find a wire size that satisfies selected voltage-drop and ampacity limits. Save supported calculations and layouts on your device. Account sign-in can sync supported saved work and subscription access across Craftmetry on iPhone, iPad, and the web. Sign in to use web access, sync, or the account preview. Craftmetry provides reference calculations, not engineering or code-compliance approval. Always verify final designs with local codes, manufacturer specifications, and qualified professionals when required. Terms of Use (EULA): https://craftmetry.corvora.app/terms Privacy Policy: https://craftmetry.corvora.app/privacy