"Robert11" wrote

Anyone know the type of plywood that this "might" have been ?

Cabinet grade plywood.

Is the top layer really "wood" ?

Yes.


What's this stuff usually used for ?

For cabinet making. Usually made with 9-13 layers with little or no voids in
the core for a 3/4" thickness vs. the normal 5 layers with many knots or
voids in the core. Can get the finished veneer in most any species of wood.

Indoor or Outdoor ?

Indoor.

Will it take a stain ?

Yes.