I'm redoing my bolsters in my 28 ft cigarette and the plywood seat cores are rotted. They are constructed of 1 inch thick plywood. I can't seem to find plywood that thick. The only thing close I've found was pressure treated 3/4 which is close to 7/8. Was wondering if this is thick enough for the seat.

yes

Could it be 2 1/2" pieces sammiched together?

2 layers of 15/32, screwed and glued together then cut out the pattern is what I do.

http://www.marine-plywood.us/douglas%20fir.htm

Use 3/4 marine. It will not rot away any more.


John jr