Replies

1. 
   calvin | Feb 26, 2013 07:06am | #1

   I had to look

   Never heard of 3/4 drywall-but there it was on the first search-3/4 mold tough from USG.  2.8lbs / sq. ft.

   Me?  I'd buy liteweight USG panels. 

   You want strong?   build it like we built bathrooms in college towns-line the walls w/plywood, veneer over with drywall.  or..................skim coat a block wall.

   edit:  I did see that in certain UL ratings, the 3/4 would match up with a double layer of 5/8's.

2. 
   Shep | Feb 27, 2013 08:24pm | #2

   I've never heard of 3/4" DW,
   I've never heard of 3/4" DW, but a number of years ago, while vacationing in New Orleans, I did see 1" DW being installed in a Ripley's Beleive it or Not store.

   The guys were smashing it against the corner of the building to snap it LOL

3. 
   joeboldt | Feb 28, 2013 01:21pm | #3

   3/4" sheetrock

   Perhaps the extra thickness is used for additional fire rating. I used it on the wall that seperates my garage from the rest of my house.

4. 
   Amish Electrician | Mar 06, 2013 02:30pm | #4

   You're confusing a few things.

   3/4" drywall is primarily used for extended fire resistance. You'll often find it in elevator shafts and commercial stairwells.

   Drywall adds little to the strength of a wall, in any way.

   If you want a tougher wall, use something else. There are specific type of drywall made for greater impact resistance, and there is cement board.