Tony - 10 years or so ago I bought my router top from Incra and then built my stand out of 1/4" luan and poplar 1 x 12 that was fine until I 'found' a better easier stand with storage. Full sheets of plywood ? My shop isn't big enough to rip one to size let alone manhandle it. Anytime I get plywood I have it cut into 2' x 4' pieces and just suffer the loss if my needs exceed the pieces available and change my dims to fit. I know there's somebody around you that has a scratch and dent warehouse - take your time and check every day. Here's my old table bottom. We had a little snow this morning, doesn't matter because this is headed to the burn pile was are the 3 drawers.
