Re: 1978 Skeeter Wrangler Sport w/ 79' Johnson 140
In case anyone is wondering I am using 1/2" Birch Plywood for the decking. And extremely
straight 3/4" Cedar for the stringers (except it isn't wide enough), hence the gluing together.
On your next restoration you'll want to use an exterior grade plywood for the decking. That Birch is nice and pretty, but it is interior (indoor) grade plywood and isn't made with the waterproof glue... it'll work as long as it never gets wet, but if it does get wet the wood plies will come apart before the wood rots.
Stringers will be stronger if they're made out of plywood, a 1" wide stringer can be made by laminating 2 pieces of 1/2" plywood together. Your Cedar will work ok though. If you Cedar needs to be wider you may want to glue 1/2" plywood to it if 1-1/4" isn't too wide, the plywood should stiffen it up nicely.
If you're using polyester resin for waterproofing, you need to lay some CSM on it at least. Polyester resin isn't strong by itself and will crack and flake off after about a year.
I'm not trying to be a PITA, just thought you should know these things for the next time if you don't want to change your materials for this project.
ABX or BCX are the 2 grades of plywood you want to use in boat building.