New Zealand (NZ) Deck Design - ROBO Deck Designer
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Deck design plans NZ

Durability

A built deck has meet several building codes regarding durability.

Fasteners and fixings

Contrary to a common belief to many DIY enthusiasts, all fixings (with the exception of nails, decking screws and fabricated brackets) need to be Stainless Steel, grade 304 for externally exposed decks. All the decks designed using ROBO Deck Designer has open slats between the decking timbers and are considered exposed. This applies to all the exposure zones as set out in NZS 3604. This does not cover areas affected by

  • Industrial contamination and corrosive environments.
  • Geothermal hotspots - Hot spots are defined as within 50m of a bore, mud pool, steam vent or other source.

Fabricated brackets need to be a minimum of 5mm thick, and hot dip galvanised.

Timbers

Preservative treatment of timber used in decks needs to comply with NZS 3602.

For more information on the durability of building materials used on decks, please refer to NZS3604, section 4.

Disclaimer: Whilst this website contains a lot of information on the design of decks which has been produced with the highest level of professional care, ROBO Deck Designer, ROBO Design Solutions or Paul Roberts (the developer of this website) does not accept any responsibility for the accuracy of the information on this website. This website is intended as a guide only, please refer to the New Zealand building code for the appropriate regulations.



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