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Thread: Oak Ribs...........whats wrong with Larch.

  1. #1
    Join Date
    Aug 2019
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    Paisley UK
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    141

    Default Oak Ribs...........whats wrong with Larch.

    I have nearly all the Oak ribs cut for my Clinker Launch. The oak ribs on it certainly never lasted any longer than the planks. On getting them off they were dry and many snapped like they had rot in them. Ok they were easy 50 years old. Apart from strength of Oak for the dimension, is good Euro Larch not just as acceptable on a clinker boat of 16 ft and with a nominal 7/16 " plank.

  2. #2
    Join Date
    Aug 2010
    Location
    Rockland Maine USA and Woodbridge, Suffolk, England
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    516

    Default Re: Oak Ribs...........whats wrong with Larch.

    I don't think Larch steams particularly well, even when even-grained, clean and knot free – which in itself can be a challenge.

    But if it will steam enough to bend to shape, it is good enough in terms of strength for timbers (ribs). We used to steam Larch for planking and for longitudinal items like the shelf and bilge stringer – it steamed Ok for those but of course the size is much bigger and the bend much more gentle, than a steam bent rib.

    The proof of the pudding is in the eating – so try it and see how it performs.

    Cheers -- George
    To be truly free to live, one must be free to think and speak.

    A C Grayling

  3. #3
    Join Date
    Oct 2009
    Location
    South Puget Sound/summer Eastern carib./winter
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    18,782

    Default Re: Oak Ribs...........whats wrong with Larch.

    Larch is a ringer for Doug Fir ?
    I cannot think of a vessel with steamed fir frames...

  4. #4
    Join Date
    Apr 2015
    Location
    St. Helens, Oregon
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    2,563

    Default Re: Oak Ribs...........whats wrong with Larch.

    A bit different:
    https://www.wood-database.com/european-larch/
    https://www.wood-database.com/douglas-fir/
    Give it a go...let us know how it works!

  5. #5
    Join Date
    Aug 2019
    Location
    Paisley UK
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    141

    Default Re: Oak Ribs...........whats wrong with Larch.

    Quote Originally Posted by wizbang 13 View Post
    Larch is a ringer for Doug Fir ?
    I cannot think of a vessel with steamed fir frames...
    I think European Larch here is a real step up on Doug Fir Wiz.

  6. #6
    Join Date
    Aug 2019
    Location
    Paisley UK
    Posts
    141

    Default Re: Oak Ribs...........whats wrong with Larch.

    Quote Originally Posted by debenriver View Post
    I don't think Larch steams particularly well, even when even-grained, clean and knot free – which in itself can be a challenge.

    But if it will steam enough to bend to shape, it is good enough in terms of strength for timbers (ribs). We used to steam Larch for planking and for longitudinal items like the shelf and bilge stringer – it steamed Ok for those but of course the size is much bigger and the bend much more gentle, than a steam bent rib.

    The proof of the pudding is in the eating – so try it and see how it performs.

    Cheers -- George
    I was going to use the Larch on my small sections at bow and transom where port and starboard ribs are not continuous and broken up by the deadwood knees.

  7. #7
    Join Date
    Oct 2008
    Location
    Walney, near Cumbria UK
    Posts
    51,965

    Default Re: Oak Ribs...........whats wrong with Larch.

    This livery skiff was ribbed out in larch
    Borwicks skiff.jpg
    It really is quite difficult to build an ugly wooden boat.

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