Strengthening Miter Joints: Splines, Keys, and Reinforcement

Miter Weakness

End grain to end grain joint. Glue alone insufficient. Mechanical reinforcement essential. Various methods strengthen joint.

Splines

Thin wood cross joint. Cut slot after assembly. Glue spline in place. Decorative or hidden options.

Keys

Similar to splines but visible. Cut at angle to joint. Contrasting wood adds decoration. Requires jig for accuracy.

Other Methods

Biscuits align and add strength. Dowels pin joint together. Pocket screws from inside. Combination approaches maximize strength.

Marcus Chen

Marcus Chen

Author & Expert

Marcus covers smart trainers, power meters, and indoor cycling technology. Former triathlete turned tech journalist with 8 years in the cycling industry.

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