Re: Chair design/maker question?

Sgian Dubh
If you think about it Barry, a rectangle (or square) effectively creates four corner to corner triangles and four triangles that intersect at the rectangle's (or square's) centre point. True, the strength of a rectangle or square relies on a combination of the material's dimensions and the quality of the joinery in whatever material is used, but the construction is what's commonly described as triangulated.

In the case of actual triangular frames, there's always the conundrum of how to make them. Each side is only together in the right place when they're assembled, but how do you bring them together with an effective joint? In many cases the only way to get the assembly together is to make the joints sloppy so that the parts can be brought together. Loose or slip tenons are another option, but these are more akin to a bridle joint than the inherently stronger mortice and tenon joint. Then you could simply align the three parts in their allotted place and drive dowels in to hold the joint together.

There's more, but this response is just a quick snapshot of my first thoughts on the subject. Slainte.

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