I used 6 oz. on the outside of the hull and deck, 4 oz. on the inside, doubled up on the area of the football, the floor of the cockpit, and about a foot of the deck behind the cockpit. It's built like a tank, and I could probably have gone with a lighter layup, starting perhaps with 4 oz. on outside of the deck. I don't think you need to worry about oil canning with a fiberglass layup, as that's more of an issue with poly boats.

: Hello All,
: I am about to order fiberglass for my Outer Island and I have a few questions
: maybe someone can help me with.
: 1) Can I get away with ordering 6 and 4 oz in just the 38" width? Will
: it be wide enough when the 'glass is laid on the hull on the bias?
: 2) In the instructions that came with the plans, it said to put the football
: and stem pieces under the outer layer, while this method seems to be a
: little less work and less mess, does it leave an outline that shows
: through the outer layer and if so will fill coats and a little sanding
: clear that up?
: 3) Has anyone done this with 4 oz under the 6 oz outer layer? Is there much
: durability that I sacrificing over weight savings?
: 4) With the standard 6 oz outer layup on the outside, can I get by with 4 oz
: on the inside of the hull?
: 5) can I use 4 oz on the inside and outside of the deck?
: I am using 3/16" strips and its alot thinner than that in some areas,
: like probably 1/8" so I want to avoid as much oil canning as
: possible. The boat will see some action on the rocky shores of Lake
: Superior.
: Thanks,
: Dave