Buildable Pro

Buildable Pro is the ad-free Buildable — the NZS 3604:2011 timber-framing toolkit built for the New Zealand job site. One-time purchase. No subscriptions, ever. Buy it once and it's yours — including the updates. WHAT'S INSIDE — 10 calculators • Member Sizer — size floor joists, rafters and lintels straight from the NZS 3604 span tables (7.3, 7.4, 8.2, 8.3, 9.2, 9.3) • Bracing Calculator — Section 5 bracing demand (wind + earthquake) and Table 8.1 element capacities, with a live sufficient / insufficient check as you add bracing • Wind Zone Finder — look up your site's wind zone by location • Span Tables — browse the full set of NZS 3604 tables • 3-4-5 Square — set out and check square corners • Baluster Spacing — even spacing with a ≤100 mm gap, every time • Stair Calculator — risers, going and pitch checked against D1/AS1 • Roof Pitch — convert between degrees, ratio and rafter length • Concrete — volume and bag count • Timber Treatment — pick the right H-class (NZS 3640) WHY PRO • No ads — nothing between you and the numbers • A one-time purchase, not a subscription • Backs a small NZ developer who'd rather sell you a tool than rent it to you BUILT FOR THE SITE • Works offline — no signal needed out the back blocks • iPhone and iPad • Clean, big-button layout you can drive with gloves on • Every result shows the table it came from HONEST RESULTS Calculations are indicative and reference the NZS 3604:2011 table behind them. Always confirm with a Licensed Building Practitioner before lodging for consent.