Pod has no inner structure except for some extra plate where the outboard bolts onto. Its 1\4" and the swim grid decking is 3\16". The pod sides and bottom were made with one piece of plate and welded inside for a nice clean look. So the pod itself was made in 3 pieces as opposed to 5 separate pieces (bottom, sides, front, and back) welded together on the outside. It will be interesting to see how much actual flotation I'll get in the stern. I'm going to be a couple hundred pounds lighter in the stern after all is said and done.