How thick is foredeck (cabin Top)

[Boston Habba]

I am doing some significant remodeling of my bow rail. Need new fasteners. How thick is the fore deck on an 83 cuddy? I am guessing about 3/4.

Thanks

[bcmarinamanager]

I know from experience that at least on the fore deck of my CC, it should be about 1"-1 1/4". It should be 1/2" plywood with a top and bottom layer of 1/4"? fiberglass.