3mm plywood on a Muskoka?

[lncc63]

Hi guys! I'm thinking of building our second Muskoka and I was wondering if I might use 3mm plywood for upper 2 panels. The plywood is really nice plywood: 3 ply no voids guaranteed. Is this ok?

[jem]

Don't skimp on the gunwales and use fiberglass inside and out. Might need to reinforce in some spots for hanging the seats. Just depends on the strength of the wood.

[lncc63]

Hmmm ... I thought I replied already to your post Matt.

Thanks again Matt. I'll definitely glass both sides, and use the best quality wood I can find for the gunwales.

The BOM says 4mm for the two upper panels, and 6mm for the lower two. I can get 3mm and 5mm but this is really good plywood, much better than the 5mm I used for the first one I built. I'll use 6 oz. cloth to glass the entire boat, 4 oz. is not available here. Is this ok?

By the way, your design gets lots of praises despite my below par finish.

[jem]

you should be ok. Bottom panel might need extra bracing to prevent flexing.

You did reply but as a guest and all guest posts have to be approved before they show up. You replied again as a logged in member before I could approve it.

[lncc63]

Thanks Matt. This morning I noticed I did not have the "Log me in automatically" option set. I guess yesterday when I came back the system had logged me out already. The option is set now.