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Composite boards for trailer running boards??

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Been doing plenty of maintenance and repair work on Southfork 16 by 52 commercial flat and have boat blocked up,had welder fix a few cracks on underside of boat and started working on trailer bunk boards and have always heard about electrolysis issues when exposing aluminum to pressure-treated pine and decided to scope out You-Tube for ideas on using composite decking for running boards and looked like awesome and extremely long-lasting alternative with zero electrolysis issues.What I did was hit local Lowe's and got enough Trex boards to rip boards for runners and sandwiched 2 one-inch thick Trex boards together,using Gorilla construction glue and stainless screws to make what seems like ridiculously durable and strong bunk boards,the only issue I ran into was having to sand the bunk boards everywhere they mate with bunk supports.Got it done,sanded each runner to exactly fit between each support and hit Bass Pro for some very nice bunk carpeting,attached it using monel staples and only thing I need to do is to install custom-made runners using new galvanized bolts and washers.Wonder if anyone else tackled such a project.This trailer seems more bullet-proof than original and can't wait to get Southfork work completed and lowered back onto trailer so I can get back to fishing!!!Think these boards gonna last minimum of 20 years and I will be 80 by then,certainly not wanting to redo em!!!

Mandevillian
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Re: Composite boards for trailer running boards??
The only thing I would careful of is making sure it is rigid enough. I have never used it for bunk boards but I have used a number of times building houses. It isn't as rigid as lumber is and flexes easily. It may not be an issue on an aluminum boat but on fiberglass boats it will likely create pressure points that can cause cracks.
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Re: Composite boards for trailer running boards??
rperilloux,Had another fellow mention that but like I mentioned to him,these Trex boards are not only laid edge side down,they are glued together and also screwed together and I feel fairly confident that flexure should not be an issue.Had I laid them on the wide side down,flexure would prevent their usage and these boards seem extremely strong,laid edge-wise.The shorter ones a shade over 5 ft and the longer ones are shade over 10 ft and the longer ones have 3 vertical supports holding them to trailer,shorter ones have 2 vertical supports.Will definitely pay close attention to them and hope I made right choice.Pressure-treated pine works but if their is ever a break in carpeting(happens often)that sets up electrolysis,causing possible pinholes in hull,never a good thing!Thanks for the heads up!!

Mandevillian
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