Composite decking

What would be the normal and minimum spacing for joists for a 4x2.5m 28mm composite decking against the house wall

Asked by John on 28th May 2024
Expert Trade Answers
"2 feet as u don’t want any movement as the flex in the product used over time"
Answered on 7th Aug 2024 - Member since Aug 2024 - report
"The spacing would be 16inches to center or 12inches on center for diagonal"
Answered on 19th Jun 2024 - Member since Dec 2021 - report
"I do 400mm centers with wooden decking. Not sure composite would be any different."
Answered on 28th May 2024 - Member since Jan 2024 - report
"No different to normal decking use 400mm spacing for the joists and you will be good to go"
Answered on 28th May 2024 - Member since Jan 2022 - report
"350mm is the normal recomendation from most manufacturers."
Answered on 6th Jun 2024 - Member since Feb 2024 - report
"I would do the spaces at 350mm as the composite decking is little bit hard walking than wooden"
Answered on 28th May 2024 - Member since Feb 2024 - report
"I would recommend 3/4m spacer for each gap keeping it consistent"
Answered on 2nd Jun 2024 - Member since May 2024 - report
"Hi

I would suggest 400mm joist spacing and certainly no more than 450mm

Thanks"
Answered on 6th Aug 2024 - Member since Jun 2024 - report
"Hello,

Joists at 400mm centres is typical.

Hope that helps.


Phill"
Answered on 29th May 2024 - Member since May 2024 - report
"16 inch centers or I normally measure length and divide up so all same but 16 inch or less"
Answered on 3rd Jul 2024 - Member since May 2024 - report
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