Dont waste your money
on anything that isnt stamped exterior glueline,our local lumberyard chain store carries baltic
birch plywood which is really nice stuff at reasonable prices which is about the only non marine plywood you can buy locally worth using,1/4" has 5 equal veneers of the same species,no voids,excellent face veneers,exterior glue line, no its not rot
resistant,but then neither is occume which is probably the most commonly used marine plywood,both are rated non durable so need to be well sealed,other than that meranti marine ply is a good quality reasonably priced panel.
Cabinet grade panels
WILL delaminate even without getting soaked,just humidity will do it.