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Made in NZ · For NZ buildersDecking calculator boards, joists & cost
Board count and gap spacing, joist and bearer spans to NZS 3604, screws and fixings — then priced off a real NZ pricebook.
No credit card · Cancel anytime · Works offline on site · Flat NZD pricing
Decking materials, sized to NZS 3604
Decking quantities depend on the board profile and the gap you run, the joist and bearer spans (which NZS 3604 ties to the timber size and spacing), the fixing type, and the treatment — H3.2 as a minimum in ground contact, and stainless 316 fixings near the coast. Get the spans wrong and the deck bounces; get the treatment wrong and it rots.
Toolie works out the boards, joists, bearers, piles and fixings, sets the treatment and fixings from the site, and prices it off a real NZ pricebook. You can also sketch the deck on your phone and Toolie reads the true area straight into the take-off.
- Board count and gap spacing for the profile
- Joist and bearer spans to NZS 3604
- H3.2 treatment and coastal SS316 fixings from the site
- Piles, fixings and balustrade in the same take-off
- Priced off a real NZ pricebook; sketch or describe the deck
It’s part of the quote, not a separate tool
In Toolie this isn’t a one-off calculator — it feeds the actual priced quote and the build programme. Describe the job or drop in a PDF plan and Toolie runs the take-off, applies NZ site intelligence and prices it off a real NZ pricebook.
More on-site calculators
See all 16 builder calculators, the full feature guide, or how Toolie quotes a job.
Common questions
How many decking boards do I need?
It depends on the board width and the gap you run across the deck area. Toolie calculates the board count, the joists and bearers to NZS 3604, and the fixings - then prices them.
Does it follow NZS 3604 spans?
Yes - joist and bearer spans follow NZS 3604 for the timber size and spacing, with H3.2 treatment and coastal fixings set from the site address.
Can I just sketch the deck?
Yes - sketch the deck outline or trace a photo and Toolie reads the true area and perimeter into the decking take-off and the priced quote.
Quote, comply and get paid — in one place
Start free today. NZS 3604, H1, Healthy Homes & CCA 2002 built in. One flat price for your whole crew.
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