18...and I like it

[erebus]

The way I did mine was I bought some prefabricated 3/16 flat stock from mcmaster-carr, and used that for the infill area. Glued it in place with epoxy and a lot of clamps.
Then ground back both sides (old glass and new flatstock) to a bevel about 6-8" wide (3-4 inches into each side) then glassed the two substrates with strips of 1708, and epoxy putty for any voids.
I may have glassed over the whole thing with a layer or two as well. Dont really remember.
Then faired and finished.
The flat stock from mcmaster is ridiculously strong, and glasses well to the old material.
Believe I used epoxy for everything.

Originally Posted by steel686

Zach - I took your advice and created a big knee for under the motor well. Wish I had seen your 18 before you sold it.

Nice. Really helps distribute the force loads from the motor to more of the hull than just the transom.