Hello Terry aka tscarlett, welcome to the forums. Got a great bunch of people here. Glad to see you come join us. Be sure to post some pics of your boat(s) in the 'Show Off Your Pontoon' section (or rebuild depending if you have before/after pics), as we'd love to see them. Also tell us your story in How did you come to join the forums? (just click on the red link and tell us all about it ).  You probably did like a lot of us have. Looking for pontoon accessories and either found it through www.PontoonStuff.com ebay site or web store. PontoonStuff (our hosts) have excellent staff members to help you find whatever it is you're looking for your boat and has excellent shipping and customer service. Have fun and happy boating. Be sure to edit your signature line to include details of your boat and motor so folks won't have to ask for it if questions arise later. Also visit our other sections like Where are you? so others will know what part of the country you're from. If you need any help editing your uploading your photo's, check out our primer here How To Upload Your Pontoon Boats Image, if you need help resizing them check out Software that helps you with pics & such. Be sure to review the posting rules and policies of the forum. If you have any issues with seeing photo's this link will explain it Issue regarding seeing photo’s on site. Please read all the posting rules. Some forums have additional specific rules for that category.

The part the goes around your deck is called a rub rail unless you're talking about a rubber strip insert that goes inside the rub rail of some boats, then its call a rub rail insert. For rub rails, you can go to a metal fab shop and they'll make one for you if they have the dimensions, check around shops for the metal and best prices. It won't be cheap.

When I rebuilt mine I replaced all the orgional flimsy rub rail with 1/8 inch aluminum angle and attached a 1/2 hard rubber rail on top of that.  We made pieces by buying aluminum square channel that was 2 inches by 4 inches.  We cut it lengthwise on a table saw with a metal blade to get 2 2x 4 inch angles.  An 8 foot piece of channel would give you 2 pieces.  I live in maryland.  If you are close PM me and I can put you in touch the guy who cut it for me.  It can be shipped but would likely be cheaper for you to get it done locally. A local metal shop could do it for you but if you have a table saw the blade is only a few bucks at your local lumber yard.

Jim

Here is a picture of my rub rail

Jim

The black rub rail is stuff used on bigger boats and can be cut with a standard miter saw.

Jim

I would check with a metal shop to see if they can put a slight bend in some aluminum angle.  You may have to use thinner stuff to make the bend.  The other alternative  is to use several short pieces of wider angle, say 3' x 3' or 4' x 4' and convert your curved edge into a 'half octagon'.

Jim