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266 posts

Ultimate Geek
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  Reply # 1906020 22-Nov-2017 21:27
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came across a deck with non-right angle joist fixings:)


Click to see full size


bent lumberlok cpc80 bracket. I did't know you can do this.



Those look like Mitek CPC (concealed Purlin cleats) which have been utilised constructively. Pryda and other manufacturers all do similar items. As long as the loading complies, its OK. All of these different items have standard characteristic load ratings which can be applied.

2 posts

Wannabe Geek

  Reply # 1928202 2-Jan-2018 21:05
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I have a similar issue with trying to hang joists at angles. Did anyone try the CPC 80 method in the photo? Is it two CPCs per joist end? i.e one on each side? It isn't obvious on the image.


(My deck is at ground level btw. In the past I have simply laid the joists on top of the bearers and secured with Z nails, but I need to get it lower this time).









9 posts

Wannabe Geek

  Reply # 1928421 3-Jan-2018 11:55
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Hi gowhow,


CPC80 in the photo. Probably fixed to the joist first and then bent with the joist to place.


I will be using Mitek MultiGrip instead

2 posts

Wannabe Geek

  Reply # 1928537 3-Jan-2018 17:25
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Thanks for the quick reply. If it’s of any help, the guy at my local deck shop also recommended using a coach bolt through both joists for acute angles.

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