Then again, I have heard several people talk about the potential corrosion my boat can incur from the aluminum hull sitting on carpet, wet with salt water and wrapped around pressure treated wood. I haven't seen any damage, but the boat is new and I'm not crazy about the idea of it happening.
I looked at several different bunk glide products, but realized I would have around 100 bucks in it by the time I was done. There had to be a better, and cheaper, idea. One I could build instead of buy.
Step 1: PVC is Slippery
I bought a piece of the trim board and twenty 1 1/2" stainless steel screws at my local building supply yard. That's all I needed, and at $30 dollars, it was considerably cheaper than any commercially made bunk glides I had seen.
The piece of PVC trim I bought was 18' long and the bunks on my trailer are about 7' each, so first I cut it to length. Then I cut a slight bevel on the front end of the pieces and lopped the top corner off the rear ends. I then sanded both cuts, making the rear into a rounded bullnose. I also planed and sanded down both top sides for the length of the boards so there were no sharp corners in contact with the hull of my boat.
The photo shows the trim piece after the cut but before finishing the rounding.