Posted 4/30/2019 06:38 (#7466781 - in reply to #7464912) Subject: RE: 20" IJOIST
NW Iowa. / SW Arizona
I’m no engineer but I agree with Gary stay with the 24”. You say tin is the only thing covering it. That would be your weak link if you go much wider then that for the snow load I would think.
20" IJOIST
