Another loft boarding question

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I am looking to board the loft in my single garage. The roof trusses are pretty standard and extend beyond the garage to the utility built on the back of the garage so the hight is quite generous. However I am a little concerned about strength given the wood sizes.

The trusses are 4x2" at 24" centres and the unsupported run in the garage is 18 1/2 feet. (joist at edge of each garage wall & then 3 in between)

So would I be better putting a couple more joists in or just 22mm board or fine just using 18mm P5 board? The use will be light storage only.

Any advice appreciated
 
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are you saying the 4x2 is unsupported along its 18.5 ft run if so then no weight can be added as they will probably be under tension so not able to take any downward force
 
are you saying the 4x2 is unsupported along its 18.5 ft run if so then no weight can be added as they will probably be under tension so not able to take any downward force

The total length of the roof trusses is about 29 feet. The first 18 1/2 feet are unsupported & then they are supported by the wall between the garage & utility. Pretty big cross beam at 1/2 way would not be adequate then?
 
you may as well go for 2 as you are more than doubling the capacity on top at little extra cost or effort
i am assuming 10ft accross the garage!!
if so go for 8x2 and it will be rock solid and put up with your drum kit ;)
 
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yep assuming the wall isnt made from soft cheese lol :D :D

Fortunately not :LOL:

House side is concrete block, other single skin brick so should do the job. I also intend to get a new sectional garage door later in the year so one of the cross beams would be a good place for the inner frame hangers as well!

Thanks for your help & advice - very much appreciated
 

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