Pontoon Boat & Deck Boat Forum

I have been reading with interest the various underskinng methods. Since I live on the Gulf Coast and our toon is used in salt water about 1/2 the time, I figured plastic was better than more aluminum! There have been several mentions of using truck plastic bedliner for underskinning, but so far I haven’t found anyone that has done this. Well…here we go!

My friend owns a truck accessory store and I have used bedliners at my disposal. Because of the corrugations the material has good longitudinal strength. So, I am hoping that it will hold up the pounding. I will be attaching it with #8 hex head stainless self tapping screws. They will fit nicely between the corrugations.

The top of the liner has rounded corrugations with flat bottoms between them. When you look at the bottom, it is the opposite. I will be placing the bottom of the liner skyward so the flat parts will be against the beams. I am also in hopes the corrugations will allow excess water to have a place to drain to, rather than potentially pooling against a beam (remember…salt water!).

I will take pictures and post a follow-up as the project moves forward.

Look forward to hearing about your results.

Sounds like a really good idea!

The price is right and I think it might work. Good luck!

I understand what you're going thru. I just question whether the high water pressure will split the plastic. Those liners are pretty tough things.

It's worth a try since the liners are not very expensive.

How did u make out with the bed liner underskinning? Looking for your pics and thoughts on it.

Mine is holding up so far, only have a few trips on it and only the last 8' under skinned but no issues so far.