Drywall thickness

Old 04-18-20, 07:50 PM
Thread Starter
Join Date: Apr 2020
Posts: 1
Upvotes: 0
Received 0 Upvotes on 0 Posts
Drywall thickness

The ceiling joists in my house are 2x4 and 24" on center and span 25feet. I am replacing the ceiling because it was sagging/pillowing. Should I use 5/8 or 1/2 lightweight drywall to prevent sagging. Previous drywall thickness is 1/2. Should I sister 2x6 or 2x8 before adding the drywall or add new joists 16on center or cross brace?
Old 04-18-20, 08:56 PM
XSleeper's Avatar
Group Moderator
Join Date: Dec 2004
Posts: 26,668
Received 1,812 Upvotes on 1,629 Posts
Seriously? 2x4 joists that span 25 feet? Who took out the supporting walls? Or do you have trusses? If trusses, use 5/8" drywall, running perpendicular to the joists.

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: