Quote:
Originally Posted by javadog
You have enough roof height in that building that sooner or later someone is going to want to put something on top of whatever ceiling you construct so I would use I joists and allow for a reasonable live load on top of it.
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He would have some usable space no doubt, but he'd need to use a 16" I joist at about 16 OC for a free unsupported span like he'll have with a drywall ceiling. For less money I'd put 2x12's crown up as you mentioned earlier and still use the L brackets I mention above to run supports up to the existing truss.system.