Plywood?

[nymack66]

I use Marine plywood in the past and glass over it no problem , Dixie Plywood sells it . You can also special order it at Home Depot they will have it in within a week , Tip if you call Dixie Plywood directly they will tell you they can only sell to a Buisness however if you show up at the warehouse they have a retail outlet that so happens to be connected to the same building , and of course I was a license contractor for about and hour !!!