There are two wet lockers immediately forward of the transom. The port side locker is for propane and the starboard side is storage for gasoline for the outboard motor. The bottoms of these lockers slope down to holes in the transom so that any leakage will drain overboard. Shown here is the port side bottom. No sanding of the edges was necessary for this fit.
To provide a ledge for the bottoms to rest on, thin strips of wood were hot-glued to the transom and bulkheads and a bead of thickened epoxy resin was applied to the bottom of the strips. Packing tape on the strips ensured a release of the epoxy.
Two coats of clear epoxy resin and the bottoms are ready to install.
The installed starboard wet locker bottom with fillets.