8 ways to make end-to-end joints that hold
Bevel-cut scarf joints
By cutting ends at an angle before joining them, you expose more long grain for a better bond. The sharper the angle, the larger and better the gluing surface. For example, a 45° bevel increases the gluing surface by about 40 percent and helps conceal the joint line on a profiled surface. To match the angles, cut one end on one side of the saw blade and the mating end on the opposite side, as shown at right. Even if your blade bevel angle varies slightly from 45°, the pieces will mate.
To join the halves, clamp the lower one against a flat surface. Then clamp the upper piece down and against the bevel on the lower piece. Align the pieces with a straightedge, if necessary.
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