Testing Joints to the Breaking Point
Surprising results surface in an analysis of commonly used furniture joints
Using the laboratory at the Wood Science and Technology Center of the University of New Brunswick, Bruce Gray tested joints and talked to experts about why joints fail. They tested traditional mortise-and-tenon joints, floating-tenon joints, biscuit joints, and dovetail joints for load, displacement, rate of failure, strength after failure, and rigidity. He explains how the samples were prepared and tested and how to interpret the charts. The article also offers a guide to the anatomy of the joints tested.
From Fine Woodworking #148