Core thickness of deck on 78 MA

[FLexpat]

May or may not be relevant; the hatches on my 76/77 23 are 1/2" core but the deck is 3/8" core (mix of plywood and balsa for some reason that I haven't figured out yet - the carpenter ants destroyed too much of the evidence).

[flyingfrizzle]

[QUOTE=FLexpat;255270] but the deck is 3/8" core (mix of plywood and balsa for some reason that I haven't figured out yet -QUOTE]

It could very will be 3/8" if not half, mine was cut back so aggressive they didn't leave much to look at.

Funny you say about the mixture of ply and balsa. I was looking at the transom boxes that were cut out and some of the floor boxes and they had a mixture of balsa and ply also. At first I thought the ply may of been added latter on during a repair but it could of had a mixture when originally built. They may of been just using up ply scraps during original construction?

[Capecafe]

I appreciate the information. I'm going to go with a 1/2 Penske or Coosa core sandwiched between a top and bottom layer of 1708. I'll be scarfing the original deck skin back on and can make up for a 1/16th or so in height rise if that ends up being the case. I'd rather have it a bit higher.