Well I just read one site that said that the lifejackets were made of canvas, historically.
Then another site said that Cameron used "Cotton Canvas" to make them. Are these the same thing? Cotton canvas, and just plain canvas? I'm not sure that I think so, but as I said earlier this is my first time EVER to mess with any kind of fabric other than mending a hole in my jeans or something. I never could even do that right! Please forgive my ignorance on this everybody. When I do this, I just want it to be historically correct.
Now all I need is the measurements of the cork used in each "square". I don't know how to refer to those. I'm sure the cork squares weren't cut as this as they are wide. That have been way too bulky. I'm not great at measurements either, but they would look to be something like 6x3 maybe? Probably smaller. It's really hard to tell with the very few photographs available.