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


With Decking the minimum thickness needs to be:

  • 32mm for 600mm joist centres
  • 19mm for 450mm joist centres

Also the slip resistance for the decking shall be not less than 0.4 when wet.

Other requirements

Other requirements for the decking are:

  • There needs to be a 3mm uniform gap between adjacent decking boards
  • There needs to a 12mm gap between the dwelling and decking boards

With ROBO Deck Designer all decks are designed using 88x32 decking.

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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