Vacuum or Rubbed Joint

Education, Technical Tips

In this Video I demonstrate the concept of a Vacuum or Rubbed joint when jointing two or more boards together.

Title: Vacuum Joint Technique for Woodworking

In this guide, I will demonstrate a valuable woodworking technique known as the “Vacuum Joint.” This method allows you to create strong, seamless joints without the need for mechanical fixings or clamps. It’s particularly useful for joining short lengths of board, and with practice, you can achieve precise results.

Materials and Tools:
– Two wooden boards for joining
– Sharp plane
– Wet cloth
– Fine glue (no brush required)
– A piece of hardware to create a vacuum


1. Preparing the Boards:
– Begin by selecting the two wooden boards you wish to join.
– Use a sharp plane to smooth the board edges, ensuring a clean, flat surface. Remove any rough spots and ensure the boards are perfectly aligned.

2. Applying Glue:
– Apply a fine layer of glue to one side of each board, ensuring there is no dust on the glue.

3. Joining the Boards:
– Place the two glued sides together, aligning them precisely to create a flush joint.
– Confirm that there are no high points or gaps between the boards, ensuring a tight fit.

4. Creating a Vacuum:
– Use a wet cloth to wipe away any excess glue that squeezes out between the boards.
– Now, firmly rub the boards together. The goal is to eliminate excess air and any bubbles between them.

5. Achieving the Vacuum:
– Continue rubbing until the boards become noticeably stiff to move. At this point, you’ve successfully created a vacuum between them.

6. Testing the Joint:
– Verify the strength of the joint by attempting to separate the boards. The vacuum should securely hold them together.

7. Finalizing the Joint:
– Once the joint is secure, you can leave it without the need for clamps or additional fixings.
– The vacuum will maintain a strong bond between the boards.

The vacuum joint technique is an exceptional method for joining short lengths of boards in woodworking. It produces a robust, seamless connection without the need for clamps or other hardware. With experience and the right tools, you can achieve precision and save time in your woodworking projects.

While this technique is ideal for shorter boards, it can also be applied to longer pieces with the appropriate skill level and tools. Give it a try and experience the advantages of a vacuum joint in your woodworking endeavors.


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