Yes, You can
Depending on how flat the popcorn ceiling is, you could do either one. Personally I would scrape the popcorn off and then locate studs and screw it in.
I would personally use 1/2 “
Scott To better assist you, please contact our HD.com customer service department at 800-430-3376 between 6 a.m. and 2 p.m. EST. They can either answer your question or transfer you to your local store to answer your specific question. You can also choose to call your local store directly.
2 things 1.You may have local code that require a certain thickness. 2. You may wind up with garage walls that are a little more delicate that you would want in a garage. Hanging tools on the thin wall board may not be a great idea. Garage walls also tend to take more bumps and bangs than your living room walls.
Not that I know. You should look on the web page and then ask Home Depot I have only seen and bought 8 ft sheets.
They put sheetrock panels in groups of two to make them more rigid for shipping and handling. If you need to purchase just one (or some other odd number) an employee will gladly cut the paper strip that holds them together.
Yes, this is the thinnest sheet they make.