Yep fiberglass over wood. Lid is fiberglassed plywood trim with mahoganey. Mounting a 48 qt cooler (w/ the lid removed) inside flush with the top so all you see when you open it will be the inside of the cooler.

Here the box before glassing.

[img]http://i209.photobucket.com/albums/bb200/harbout5279/946946-R1-21-3A_022_0001.jpg[/Iimg]