Basic Knee Brace Layout Instruction

(1 customer review)


Proper diagram instruction on how to layout a timber frame knee brace with mortise and tenon joinery.

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Layout a timber frame knee brace correctly.

The knee brace is the fundamental element of a timber frame structure. Although it looks simple at first glance there are many ways to get off track when laying out your knee brace to cut. From inconsistent rough sawn material to the geometric complexities of noses and mortise and tenon joinery, it can prove daunting to the novice.

Here we explain how to overcome all of those hurdles with solid carpentry principles and good guidance. Please download our drawing and instructions on how to accomplish the basic timber frame task correctly. The downloadable plan diagram goes into how to begin with rough sawn or surfaced timbers all the way through correctly laying out the knee brace joinery and making sure it is correct in irregular rough sawn material.

Benefits of this diagram:

  • Alleviate mistakes in calculating rough length of 3′ leg knee braces
  • Provides context and references to connecting pieces so you understand the bigger picture
  • Gives detailed geometry/ dimensions on correctly laying out the mortise and tenon joint
  • Addresses the irregular shape of timber and how to keep your joinery correct with unsquared material
  • Sequences the layout so that any lack of precision is reduced to less important areas.
  • If you are a novice, this could be the difference between a meagerly constructed frame and one that has the important parts of the joinery tight and correctly crafted
  • A true, plumb, and square frame

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Joint and Peg

1 review for Basic Knee Brace Layout Instruction

  1. Mars Loadholt

    This three page drawing diagram must have saved me hours from frustration. Not to mention the braces being cut correctly and not having to get more timber from mistakes. Highly recommended.

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