Quote:
Originally Posted by philso
Aesthetics is not the issue. The plywood that is sanded on both sides is generally made from a larger number of thinner and better quality wood than the lower grade, un-sanded, rougher plywood. The cheaper, rougher plywood tends to have more voids in it. Often, these voids, especially those on inner layers, are discovered to be in critical locations after the pieces are cut.
My personal (empirical) experience is that the better grades of plywood do hold fasteners (staples, nails, screws) better. I also find it nicer to work with since it splinters much less when cut. For the ultimate, use Baltic birch like MrRoboSteve.
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In that case it isn't a few bucks more. Cheap S2S plywood is still just standard 5 ply only smooth. From what it sounds like you are describing, it would be almost double the cost.
In my opinion, bumpers are a waste of Baltic birch plywood. Utilitarian items don't need furniture grade material when sheathing does just fine.