@Mannyrock posted:P.S.- As for plywood "bowing".
The inside of Lowes and HD are extremely dry, and the stacks of plywood are extremely dry. Consequently, when you bring a sheet home a place it in any environment where the moisture is higher than the store, the wood will absorb it and the sheet will start to bow, almost overnight. After 3 or 4 days, forget it, it is ruined!
So, when you bring it home, take it to the driest room of your house, lay it flat with the good side down, and weigh the entire sheet down, particularly the middle and on the ends. I have several heavy tool boxes, so that is what I use.
The weight will minimize or prevent the sheet from bowing.
Cut and prime the plywood on the same day you bring it home, and glue and screw it down on the table by the end of the following day. If there is minor by this day, then weigh it down flat on the framework once you have the glue on the joists. After you glue and screw it, those bows will be gone forever. Prime the underside by the end of the second day.
Your table will not bow after that.
I am very lucky that I have an extremely dry basement, which I keep at around 35% humidity with my dehumidifier. But even at that, new plywood and timber will start to bow down there if I don't weigh it down immediately.
Plywood can be pretty unforgiving. I have learned the hard way that you can't cut it into strips and leave it for couple of days. It will bow in the extreme and you have to trash it.
Again, I hope this helps.
Mannyrock
This stuff bowed immediately after I cut it into strips. A C was the grade I bought from a lumber yard.
