On Mar 14, 8:34 pm, "Howard" wrote:
Looking to find the code requirement for 5/8" firecode drywall in a
garage. How long do the nails need to be and what spacing for a
ceiling? TIA

I don't use nails as they're more prone to popping and they don't hold
as well as screws.

Generally 1 1/4" screws, mimimum, are used with 1/2" drywall, and 1
5/8" screws with 5/8" board. I'd space the fasteners 8" on center,
thought the books will tell you 12". Here's a good basic site:
http://www.hometime.com/Howto/projec...all/drwl_4.htm

If you want the definitive answer on drywall, visit the USG web site
and check out their online drywall handbook. More information than
you'll ever need.

R