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Made in NZ · For NZ builders

Every builder calculator you need — offline, on site

NZS 3604 spans, H1 R-value, Healthy Homes, concrete, decking, GIB, timber, roof, stairs and more — 17 calculators built into Toolie, plus a plain-English NZ reference library.

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No credit card · Cancel anytime · Works offline on site · Flat NZD pricing

17 builder calculators, built in and offline-first

Toolie ships the on-site maths a New Zealand builder actually runs — no app-switching, no spreadsheet, no “I’ll work it out back at the yard”. Every calculator works with no signal and is current to the NZ standards. They’re in the app and in the crew portal too (the crew see every one except True labour cost, which stays with the owner).

NZS 3604 span tablesJoist, bearer & rafter span-table finderH1 R-value6th-edition thermal compliance checkHealthy HomesRental compliance & zone R-valuesConcreteSlabs, footings, post holes + bag countDeckingBoards, screws & gap spacingGIB sheetsSheets, screws & stopping compound
Timber orderStock lengths to buy, lm & m³
Roof / rafterPitch, length & ridge heightStairsRise, going & headroom — NZBC D1/AS1Paint coverageLitres for the room or surface
Tile / floorTiles + adhesive + grout
InsulationBatt count + wall/roof coverage
Equal spacingBalusters, palings & joists
Square checkDiagonal · 3-4-5 · Pythagoras
Right triangleSolve the missing side or angle
E2 weathertightnessRisk matrix → cavity or direct-fix
True labour costWhat $35/hr really costs you

Job-quote calculators

These take off and price straight into a real quote off a NZ pricebook: the fencing calculator (posts, rails, palings, concrete), the timber framing calculator (studs, plates, dwangs, lintels) and the lintel & beam span finder (NZS 3604 tables). See also the deck cost calculator and concrete calculator.

Plus a NZ Reference library

Plain-English guides to NZS 3604, NZS 3902 and NZS 4229, the H1 6th edition, Healthy Homes, BRANZ research, the tolerance guide, GIB systems, NZ timber and H-class, wind and coastal zones, the 2025 Code update and per-council consent fees — each pointing you to where to find it in the standard. A whole reference shelf that works on site.

The calculators come with every plan, including Solo at NZ$49/mo. See the full feature guide or how Toolie compares.

New: roof area, driveway joints and design tools

Try the free roof area calculator (pitch factor, ridge, hips, spouting), read the driveway control-joint guide, and see the design tools that sit on a builder’s fence, roof, retaining wall and driveway quotes.

Common questions

Are the calculators free?

They come with every Toolie plan, including Solo at NZ$49/mo (ex-GST), and there's a 14-day free trial with no credit card.

Do the calculators work offline?

Yes — all 17 calculators and the NZ Reference library work with no signal on site, then the rest of Toolie syncs when you're back in range.

Are they current to NZ standards?

Yes — the span-table finder points to the current NZS 3604 tables, the R-value tools follow the H1 6th edition and Healthy Homes Standards, and stairs follow NZBC D1/AS1.

Quote, comply and get paid — in one place

Start free today. Built around NZS 3604, H1, Healthy Homes & CCA 2002. One flat price for your whole crew.

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