Depends on how you want to finish it.
I am going to upholster the shell of mine with carpet so I used 3/4" Sande plywood for my shell, http://www.homedepot.com/p/Sande-Pl...ual-0-709-in-x-48-in-x-96-in-454559/100037820
I used 1/2" birch for the drawers, because I may stain or paint those.
If you are going to stain, go with Birch. If you are going to upholster or Line-X then the Sande should be fine.
My girlfriend just finished staining the faces which are also 3/4" sande ply and she had to hit with 220 grit between coats, as the grain tends to rise. They are looking really sharp after 3 coats of the stain/poly combo she is using. I'll post more picture soon.
Thanks for the info. I never thought about what kind of finish. I am planning on line-x though for the finish. I spent a lot of time on the beach with sand so I thought the line x would hold up better to that.
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