The frame has a perimeter about 2.5 inches tall and made of 3 strips of 1/4 marine fir plywood epoxied together with 7 radiata pine cross pieces every 2 feet. i'll be using 1/4 inch plywood for the skin of the roof, but i'm not sure what type of plywood wood be best.. Does anyone have a source for 1/4 inch green treated plywood in the twin cities area? i’m looking for places that have it in stock. i got a blank stare at menards and home depot. my boats sit outside 24/7 and are in the water for days on end. i trust my life with it. ymmv. eelpoutguy. participant. farmington, outing.. Marine plywood is easier to work with, especially when bending, and finishing. for small boats, quality 4 mm plywood is a good substitute for the ¼ inch exterior ply often specified. marine plywood (except for fir) will not check. that feature may by itself pay for the difference in cost..
1/4 in. x 4 ft. x 8 ft. purebond birch plywood is rated 4.4 out of 5 by 99. rated 5 out of 5 by brett from great product, but the staff at hd was unable to... great product, but the staff at hd was unable to make a straight or precise cut that i needed.. Before the advent of pressed wood underlayment we used to use 1/4"- 5 ply plwood that had wateproof glue. i have not been able to find 5 ply but have found a 3 ply being used for underlayment. it is an a/c/x grade with both faces being solid and no voids in the middle ply. the x denotes exterior glue so that would be a resourcenol glue.. The plywood for boatbuilding faq version 1.1 11/9/96. edited by craig o'donnell send corrections and additions to me. about the faq. this is a basic introduction to plywood and epoxy boatbuilding. it is based on builders' actual experiences and covers lauan, bc pine, fir, okume (occume), marine plywood and plywood over foam..
