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    Avatar Of PaanaPaana
    Post count: 1

    Hi all. This is my first post on this forum. Sorry about the bad English.

    A few week ago I saw a YouTube-video. I dont remember the topic (waterstones, or something simular?) but  in the video he showed how you could easy make a square box waterproof by joinery.

    The key was to take a nail and hammering it along the fibers in the wood so that a hollow was made. The second step was to plane down the area around the hollow to the same deep as the bottom of the hollow. When that area later was being hit by water it made the joinery for the box waterproof.

    But I cant remember the joinery he used for the box/container! So my question to you all are: What joinery do you think he used so it benefit from the “hammering down a nail” and become waterproof?

    I have added two pictures: one about the technique itself and one of what i can remember from the box/container.

    Please help this newbie that isnt used to thinking about different joinerys.


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    • Avatar Of Mike In TnMike in TN
      Post count: 301

      Hi Panna,

      I am almost certain that the video you mentioned is by Frank Klausz (one of my favorites) but it has been a long time since I watched it. Without watching it again, I don’t remember for a fact what method was used at the box corners but I seem to think that very dry soft wood was used with tight dados or sliding dovetails and the side pieces were allowed to run long past the joints. The sides and ends were planed flat on the bottom edge after assembly to help ensure a tight seal with the bottom before the groove was established by compression using a bent nail or wire and a hammer. Then the box was planned down again (just to the bottom of the compression groove). The flattened bottom was nailed on very tightly. When the water hits the wood the wood swells with the compressed groove swelling more than the surrounding area. The swelled, previously compressed wood, forms a gasket.

      Have fun.

    • Avatar Of Minho266minho266
      Post count: 2


      Thanks for everyone’s interesting and useful sharing, us map will visit often to find the necessary information.

    • Avatar Of James Abeljames abel
      Post count: 2

      I like it

      Don’t worry about any mistakes you may make, as everyone is here to learn and improve. Feel free to ask any questions or share your thoughts on various topics.

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