Help needed with 48" OC trusses

[tapered-pin]

0 for 4.

Here is the max frame spacing from USG. I dont see where it will span 48"

Even a half-assed contractor will know this.

I dont see where it HAS to span 48" install blocking between the trusses at 24" OC and get back to work.

 

[lakeroadster]

I dont see where it HAS to span 48" install blocking between the trusses at 24" OC and get back to work.

But don't install any blocking until it has been verified that the trusses are designed with a dead load for a ceiling.

Blocking adds weight.

Or better yet, use steel sheathing designed for ceilings.. then blocking isn't needed.