Suggestions for Gheenoe Rebuild

I am just starting the rear and forward decks that I plan on building in my gheenoe. The one problem I am having is deciding what material to use to make them. The two I am deciding between is divinycell or marine plywood. Plywood because it is the cheaper way out and divinycell because it is the lightest. I cannot decide and am desperate for some input. Is the difference in weight that great? Also any suggestions on other materials would be greatly appreciated.

172 Sea Hunt Triton
Laser Sailboat

On a small project like that, the weight will almost be a wash and the foam core will cost more. Probably twice as much.

The foam isn’t as strong as plywood so it requires a thicker core and more epoxy and FG cloth to achieve the same strength. I’d use 3/8" marine okume or meranti, and one layer of 12 ounce biax cloth over it.

Capt. Larry Teuton
Cracker Built Custom Boats

“Ships are the nearest things to dreams that hands have ever made.” -Robert N. Rose