Attic floor decks and wooden bath chopped executed, are made of wooden beams. So, it is important to understand how to embed the beams in the frame in the correct way, so they are not torn up and lift it out of the cuttings. Visually the connections looks like a bar sticking out of the top of the wall. A connection without a rest is a beam that does not form a residue (removal) at ends in a log. Both are united by the need for rigid support beams in the walls of log bath. Entrapment prevents buckling and torsion beams.
It all will be more clear when you’ll see the images and analyse the connections there.

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