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New Bunk Boards

Thread in 'Trucks & Trailers' started by rbstern, Mar 25, 2017.

  1. rbstern

    rbstern Administrator Staff Member Administrator

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    Lifted my Larson bowrider off the trailer this weekend to prep for bottom paint. Found the bunks were in fair shape. Some rot has set in after 10 years. Figure I might as well replace the boards while I have the boat suspended off the trailer.

    Current plan is to get 2x6 PT and cover it with marine bunk carpet. Normally, I'd just use stainless staples, but the current carpet is glued, so I'm contemplating doing it

    Any thoughts on does and don'ts?
     
  2. Major Mark

    Major Mark Well-Known Member

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    As your Larson is glass, you could use pressure treated lumber, but for those of us with tin boats, PT is a no-no. The chemicals used to treat it reacts badly with aluminum. Also would depend on what your trailer is made of, steel, galvanized, or aluminum. I'd use staples and only do about an 80% wrap leaving the bottom open to help with drying of the bunks. Just my opinion...
     
  3. rbstern

    rbstern Administrator Staff Member Administrator

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    Thanks, MM.

    Trailer is painted steel. It's a very good paint job, though, as the treated bunks on there haven't caused any corrosion on the steel supports (model year 2005 trailer that I've owned since 2007). Carpet I bought is sized to leave most of the 2x6 bottoms exposed, so good to go. Gonna skip the glue and just staple to the boards.
     
  4. rbstern

    rbstern Administrator Staff Member Administrator

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    Got the bunks done this morning. All of it came together really well. Boat is back on the trailer. Lowering it back onto the trailer was actually more work than jacking it off the trailer.

    Glad it's done.

    Next, a topside bath and dewinterizing, and then launch.
     
  5. firedog978

    firedog978 Well-Known Member

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    I've replaced my bunks a couple of times.
    Bought the PT boards and carpet. Cut to size (for trailer) at home. Gave all boards a good
    coat of protectant. Cut and covered new bunks (leaving 2" un-carpeted on bottom) SS staples.
    Bought new SS hardware for attaching bunks.
    Went to ramp, launched and tied up boat. Had all new bunks, tools (charged up) and hardware in truck.
    Removed old bunks and installed new in 30 minutes.
    Sweet and easy. Have done this twice in 16 years.
    I've also gotten in the habit when I park truck and trailer after launch, to check for any loose bunk boards.
    I never see anyone else ever check bunks after parking rig. It only takes 10 seconds to do that. Sure does give piece of mind to me.
     
  6. BillM2

    BillM2 Member

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    Time for me to do this also. I saw a tip from someone who used an old bicycle tube, cut in sections, placed between PT wood and trailer bracket to help protect from the chemical reaction.

    Anyone have a good recommendation for replacement carpet? I see the usual stuff, CE Smith, Fulton. My neighbor used the first one last year and it is already wearing away. Very thin stuff.
     
  7. rbstern

    rbstern Administrator Staff Member Administrator

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  8. Jerry Carpenter2

    Jerry Carpenter2 Member

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    You can change them out in the drive way. Take a 4 x 4 and saw the contour to match your transom. then use a floor jack to raise the boat up off of bunk boards. Just don't get to crazy with the height. Remove one at a time.
     

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