: So I am preparing to install the zipper on my Sea Ranger. I've
: elected to install it on the back deck. The instructions call
: for a 5" wide strip of pvc to sew the zipper. I have a
: 4" wide strip that is the perfect length, will this be
: sufficient, or is the full 5" needed for strength?

: Any thoughts?

4" should be fine. Another option worth considering is using a roll-up deck closure like that on a dry bag.
Email me if this simple.... and dry solution, is of interest.

Here's a pic of one on a folding Sea Tour EXP Double with a roll-up closure .... just back from a tour of PEI and the Bay of Fundy.

Tom