On Oct 13, 8:06*am, stryped wrote:
My detached garage with metal siding has 2x4 trusses spaced 4 feet on
center. Can I install a ceiling or will this be too much weight and
cause sagging/or other problems?

Depends on:

1) whether the trusses were designed to take a ceiling load
2) what type of ceiing you have in mind

very difficult to tell from here w/o more info

fyi

http://www.managemyhome.com/mmh/auth...s/Roof+Trusses

cheers
Bob