Thread: Trailer bunk boards

Good question. I plan to use it when I have to replace my bunks. Think I will use two on top of each other to get the thickness.

I used treated two by fours and put my own carpet on. Have lasted longer than the originals so far

The composite boards should last a lifetime. Since I've never used them I would assume you'd wanna carpet them though. No need to scratch up the bottom of your boat.

I'm thinking about using them as well....I've got one that needs to be replaced on the side anyways

I've read that the composite boards do not have the strength to span the distance between the trailer bunk supports and will quickly start to sag but no first hand experience with 'em. Most decks built using the composite materials have the support beams at 12" OC IIRC due to this tendency.

If you have a tin boat, don't use PT lumber, the chemicals in the PT wood will leech thru the carpet and start to eat pinholes in the hull over time. Use regular wood and paint or seal it with whatever floats your boat, but just replace 'em more often. bunks are cheap compared to pinholes in the tin hull.

I have to agree with jimp the composite boards don't have the grain that give real wood strength. I'd stick with real wood.
Also a good idea about treated wood

They make a composite bunk board that is thicker for use on boat trailers

Originally Posted by jimp

I've read that the composite boards do not have the strength to span the distance between the trailer bunk supports and will quickly start to sag but no first hand experience with 'em. Most decks built using the composite materials have the support beams at 12" OC IIRC due to this tendency.

If you have a tin boat, don't use PT lumber, the chemicals in the PT wood will leech thru the carpet and start to eat pinholes in the hull over time. Use regular wood and paint or seal it with whatever floats your boat, but just replace 'em more often. bunks are cheap compared to pinholes in the tin hull.

Now you got me concerned. Not sure what I want to do now. I just got home with two of the boards at $20 a piece. What scares me is I did notice a couple of the boards on the rack had a downward sway that were hanging off the end of the rack. Looks like I need to take these back.
Thanks for the feedback.