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View Full Version : What kind of marine plywood for a kayak?



kmerr98277
08-14-2012, 10:45 PM
I need marine ply for a 12 foot kayak. The local marine lumber supplier offers bs 1088 in many thicknesses and layers. I was thinking 6mm (1/4"). Any suggestions for thickness and what number of ply?

James McMullen
08-14-2012, 11:10 PM
What design? Is this a recreational poking-around sort of boat or a kayak intended for our more open waters?

Okoume 4mm is the only thing I would even consider using myself for a serious kayak. Everything else is either too heavy or not strong enough.

kmerr98277
08-14-2012, 11:11 PM
Its a recreational kayak. The wood duck 12 hybrid.

James McMullen
08-14-2012, 11:24 PM
Doesn't it say on the plans? I'm almost certain that that one is 4mm okoume for the hull and western red cedar-strip for the deck.

Don't try to double-guess the plans, though. Follow what they say exactly. It is pretty hard to improve a CLC kayak compared to how easy it is to screw one up.

kllayton4
08-15-2012, 08:35 AM
I have built two of those and the plans say 4mm okoume for the hull. The cock pit apron and the coaming spacers call for 6mm. I called CLC and they said you can use 4mm or 6mm for the apron. I made my apron from WRC strips.

Cuyahoga Chuck
08-17-2012, 12:05 PM
I need marine ply for a 12 foot kayak. The local marine lumber supplier offers bs 1088 in many thicknesses and layers. I was thinking 6mm (1/4"). Any suggestions for thickness and what number of ply?

For most paddleboats the shorter the hull the more severe the bend the planks are required to take. By going to a slightly thicker ply you would be making your build much harder. Don't try to reinvent the wheel. Those that did the design are much better at figuring things out than you.

smallyachtsailor
08-17-2012, 02:15 PM
You should go with what the plans call for. That said, I've built all my kayaks--up to 18 feet--with 3.2 mm (1/8") okoume because I favor light weight. But then I build using batten-seam construction and use no fiberglass. Durability? Well I don't drag my boats on and off the shore, and they're still fine at 11-12 years old.