Splined Miter Joint Strength. A slight tilt of a saw blade gives your corner splines a whole new look. Showing the strength of a splined joint. Splines for strength when used on a miter joint, the spline adds extra strength to an otherwise delicate joint.
This small enhancement adds considerable strength to whatever joint it's applied to.
Plywood miter joint are relatively weak. Fine woodworking published the results of joint strength tests in their january 2009 issue (#203). A spline is an easy way to if you are looking for extra strength in your joint, the grain of your spline should run at right angles to the joint, otherwise the spline's grain can be. Inserting a strip of wood, plywood, or other material (such as hardboard), into slots cut on the miter's opposing faces reinforces the joint and helps keep parts. Ngthen your miter joints with this. This small enhancement adds considerable strength to whatever joint it's applied to. And thus the strength of the joint. Miters make quick and easy box joints, but they have no mechanical strength.
