The In & Out Jointing Technique: Revolutionizing Board Assembly

When joining boards using a jointer or surfacer planer there can be some inaccuracy due to the fence not being at perfect 90 to the table. This will lead to the table or jointed panel not being flat and can cause a roller coaster effect to the final work piece. Here is how to avoid this common problem.

How to Execute the In & Out Jointing Technique

  1. Do your best to set the fence as near to 90 degrees as you can but don’t fret any discrepancy will be covered in the next step.
  2. Lay out the boards on the bench flip to oppose growth rings with the best faces to the top.
  3. On each board mark on the top face IN on one side of the join then OUT on the adjacent board
  4. Repeat on every joint for instance if jointing four boards there will be three joins so there will be 3 INs and 3 OUTs
  5. Use the INs OUTs as a reference.
  6. Start your Jointer or Planer and run each board edge over the jointer if it’s the OUT then face that away from the fence and if it’s the IN then run that against the fence.

Why does this jointing technique work well?

Any error is negated when you run the adjacent board. The end result is  a flat glue up.


The In & Out Jointing Technique is a testament to the evolution of woodworking, offering a FOOLPROOF solution to the age-old challenge of joining boards. Whether you’re assembling a piece of furniture, crafting a cutting board, or working on cabinetry, mastering this technique can elevate the quality of your projects to new heights. “As an Amazon Associate, I earn from qualifying purchases.”

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