Garage Shop Walls: Drywall or OSB?

[Jim Andrew]

It occurs to me that there would be no concern for the impact on a fire if you could buy waferboard treated for fire. They already treat cellulose insulation, and panels for suspended ceilings, so it would require nothing new, just a waferboard treated for interior wall use.

[Patrick Harper]

Patrick, I used an exterior panel in our dogroom that goes up just like T111 with the rabbeted edges, but has a primed surface that's ready for painting. http://www.starbornhavanese.com/images/DSCN5733.JPG

Here is the link for it. It's not as cheap as sheetrock, but you would have to try really hard to knock a hole through it, and it does take a lot less time and mess putting it up through finish painting. I hand nailed it with 6 CC sinkers, hit the nailheads with oilbased primer so they wouldn't bleed through, and sprayed it the same day. No sanding of any kind. I wanted to be able to find the studs easily without bothering with a stud finder, and you have to look for the sinker heads in the wall texture.
http://www.homedepot.com/p/SmartSide...7874/100055901

I also used it in closets in the latest addition on our house.

That's exactly what I'm looking for. I'm assuming it's as fire resistant as drywall, but you can hang stuff directly off of it like OSB and plywood.