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Much of the modern, mass produced furniture makes extensive
use of simple butt joints reinforced by mechanical
fasteners. In many cases, this is to make the piece of
furniture capable of knocking down flat
for transport, thus reducing shipping costs. This is
fine for furniture that you don't expect to keep for more
than a few years. It is inexpensive, so when it
becomes too wobbly to use, just replace it.
But for fine furniture that you expect
to hand down through the generations, this will not
do. We build our furniture using the joinery
techniques of the old masters. We make extensive use
of mortise
& tenon joints for corners, we inset shelves and rails
into stiles, notched lap joints are used in all our drawer
grids.
Mortise & tenon joinery has all but disappeared from modern
furniture construction. This joint uses a long "tab"
cut on the cross piece that fits snugly into a deep "pocket"
cut into the upright piece. This tab will go most of
the way across the width of the upright, but not all the
way. This way the joint is completely hidden inside
the wood. Because this "tab" is smaller in section
than the rest of the piece it's cut into, there are
shoulders at the edge of the joint that draw up snugly
against the upright. When properly cut, properly glued
and clamped to draw the joint up tight while the glue dries,
this joint adds greatly to the rigidity of the piece being
built. The joints themselves hold the piece square and
solid. Dowel pins just can't do that.
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