The cabin floor comes in three parts, the two halves and the butt block. The floor is too large for a single sheet of plywood, so two sections must be glued together. As you can see, there are three puzzle joints, and if you look closely you can see the butt block lying on the lower half. Wax paper is under the joint to keep it from sticking to the cardboard I have laid under the whole thing. All three sections are made of 3/4" marine plywood--very stout stuff!
Here the two main sections have been glued with thickened epoxy, and more thickened epoxy is spread on the butt block. The epoxy is thickened with a product called Cell-O-Fill, made of cellulose I think.
Another shot. In this one you can see the puzzle joints a little better. In my haste to get things ready before the epoxy started to "kick" I knocked over the container, spilling some glue on the plywood. I cleaned it up and put wax paper under it.
Butt block installed over joint. The butt block is held down with temporary wallboard screws. After the glue cures, the screws will be removed and the holes filled.
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