Hi I am building my deck (ACQ treated) and using the choice deck
composite decking. I have 12" on center joists. The question is do I
screw the planks at every joist or can I do every other? I.E. every
24" rather than every 12"
To add a little explanation of the try it at 24", composite decking tends to
not be very rigid. If you fasten at 24 inches you might hear and or feel a
slapping sound if the planks do not fit securely at each joist as you step
Well It seems fine at 24". No slapping no bowing, etc. I've put
about 20 or so down with 24" spacing and everything seems great. We
have had two very hot, very sunny days so I would expect the decking
to lay nicely, but I'm not sure how this stuff reacts to fluctuations
in temp. Granted I'm in Southern California and we don't fluctuate
The manufacturer states that you should use 16" or 12" on center
joists and that for 16" you should screw to every joist. They don't
specify anything about the 12" option.
On Jun 14, 3:49 pm, email@example.com wrote:
I built a TREX deck using 16" spacing and for July 4 one year had a
bunch of people on the deck. Held up fine, but when this one man's
monster fat son walked across it it shook a bit - had to do again, I'd
go like you and maybe closer like 12".
I got lazy on install and only did 99% of fasteners, not 100% and
there are still spots where I get that slapping noise from loose
boards, just need a day to screw it down. Screwing TREX is a PITA, as
stainless screws strip easily and you have to pre-drill, even then its
a slow process and will nearly wear out a drywall gun.
Scott, I am using the Senco Duraspin DS300. Mates nicely to my Dewalt
Drywall screw gun. The 08R250W screws are going in nice, no pre-
drilling. I'm getting a little mushrooming but after a hammer tap and
a day in the hot sun they disappear. I couldn't get the duraspin "no
mushroom" version in a timely manner, but I would imagine they would
work even nicer.
I can see while putting the decking on 12"OC was the way to go. I
just can't see if screwing to every joist is necessary.
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