aluminum boat so rate of expansion is no concern, did you stack tubes Horizontal or Vertical? I would be welding them together.
might not be the cheapest fix but I would really like a permanent fix.
has anyone used aluminum square tube welded together instead of the wood? i will be replacing my transom on 1982 18' StarCraft mariner CC. I was thinking of pourable fix, or wood but i never want to deal with rot again so it though aluminum square tube welded together, is there any experience...