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Gap between bunks and hull.

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  • Gap between bunks and hull.

    Finally getting my new to me trailer set up for my new 1974 20.

    After a lot of work and adjusting,Ive finally gotten the bunks perfectly centered to where bunks are under stringers. Everything is great with the exception of the gaps. The gaps are identical on each side as well as front and back. It seems obvious that a curve/Upsweep in the hull is the reason. Anyone else have this issue with a 20?

    I had thought of simply cutting a sliver of 2x6 and taper it to fit. Attach it carpet and move on.

    After some thought I wonder if I could simply add layers of carpet to make up the difference. At transom there is approx. 1 inch gap from top of bunks to hull. From there it tapers for about 4 feet. From there the boat is supported perfectly until you get further up. I understand that the hull leaves the bunks in the from with the curve but I plan to have support the full length of bunks.

    I cant think of a problem simply layering carpet to correct this. Seems like I can over

    layer by a tad to account for settling and be fine unless my thinking is wrong.

  • #2
    My 21 had the same issue at the stern. I raised the bow bunks (or roller if you use rollers) so that the stern contacts the bunks. My fear was that the hull would develop a hook in the stern from being unsupported on the trailer. Raising the rear of the bunk may make it so the boat wont slide off the trailer if your trailer floats like mine does. Not sure why my trailer floats but it does and always has. If you want to get real fancy, you could scribe the bunks and cut them to the hull profile and then carpet them. My Dads 32 Donzi trailer and his boat lift have the bunks scribed to the stepped hull. His trailer doesnt float, though.
    Brian, Cary, NC
    1978 Mako 21


    • #3
      Thats what I think I will do. Either that or add to what I have and shape.