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I am planning on putting on a little addition to my house.  I'm building it with 2 x 6 studs, and I will need sheathing.  What type of plywood should I put on the outside for to sheathe my house?
 
What thickness should I use? | 
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| I would use 1/2" cdx exterior grade plywood on all the walls.  You could use osb sheathing (oriented strand board) but I have used it in the past and prefer regular cdx plywood.  osb is less expensive than plywood and could be the determining factor. |