APEowner said:Keith Tanner said:Another vote for drywall. But you don't really have to bother with all the taping and mudding for a garage. Or, if you do, you don't need to get a great finish. Then grab a roller and a 5 gallon bucket of Kilz primer and give it a coat. Hides the seams, makes everything look consistent and really brightens up the space with minimal effort. I did that in my current garage and was really happy with the results. My previous garage had an unfinished drywall ceiling and the guy I sold it to painted that white - I wish I'd done it myself after seeing it.
Another option for drywall finishing is a knockdown coating. I still can't get photo upload to work on this site so I can't post pictures but that's what I did in my shop and it's more durable than straight drywall, hides minor dents and is quick and easy to do.
Copy and paste the photo into the comment, it should upload.