Scarf joint

A plain scarf joint
A nibbed scarf joint
A keyed, nibbed scarf, reinforced with fish plates and through bolts
The scarf joint used on the beams above the post is known by its French name, trait de jupiter, or bolt-o-lightning joint.

A scarf joint, or scarph joint, is a method of joining two members end to end in woodworking or metalworking.[1] The scarf joint is used when the material being joined is not available in the length required. It is an alternative to other joints such as the butt joint and the splice joint and is often favored over these in joinery because it yields a barely visible glue line.

  1. ^ Schwartz 1995, p. 269.

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