I decided to build a few things using plywood. The oak ply at my local Home Depot was priced well and looked good. They even cut it down for me.

I have done this before with good luck (I might be charmed or something). Turns out that this time I was not so lucky. I mean the plywood really does seem nice, but the sides are neither square nor are they parallel. I am not even talking about the cuts made by Home Depot. I used to check this, but I stopped because they were always square. So I made my cuts referenced from the factory edges. I even applied edging (and similar), and then I noticed that one corner was not square. So i checked them all. I think that I can salvage the one I already trimmed and applied edging, but it will take some time.

Lesson learned.

One corner is square, but it goes out for about a 18 inches and then it dips down and travels at an angle so the next edge is not square.

Anyone else ever see this?