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Cabinet Making Joint
Applications
Edge butt joints are used in box construction and flat butt joints in
frame construction. Dowels, splines, keys, and glue and corner blocks
strengthen cabinet joints. Rails and legs of coffee tables are
strengthened by butt joints containing dowels and corner blocks. Cases
are strengthened by corner butt joints with dowels. Web or skeleton
frames use frame butt joints with dowels as an end to edge joint.
Furniture and casework dividers use middle rail butt joints with dowels
as an end to face, or edge to surface joint. The large surfaces of
table tops, desks, plywood cores, interior paneling, and doors are
built up by edge joints. Tongue and groove joints are used in paneling
and flooring. Cabinet making and other joinery shops use milled or
shaped edge joints, to speed up assembly and add surface area for
gluing. Rabbet joints are found in simple box and case construction.
Back panel rabbet joints are put in storage tables, cases, cabinets,
bookcases and chests. Dado joints strengthen and stabilize the weight
supporting cross pieces and frames found in cabinets, bookcases, chests
and shelves.
The rabbet and dado joint combination increases frame strength and
rigidity. Lower table shelves are supported by corner dado joints.
Dovetail dados are used in shelf frames and drawers. Cross lap joints
are used as table cross supports. Edge lap joints are found in coffee
table cross stretchers. Exposed miter joints are used in table legs and
rails, and regular and polygon miters are used in table frames. The
compound miter or hopper joints, are found in tapered frames and
containers. The miter with rabbet or offset miter joint, stabilizes
squared corners and a provides a large gluing surface in plywood
casework and other corner joints. Lock miters look like miter joints
but are as strong as dados. The miter with end lap joint, also has
the miter appearance but is as strong as a lap joint. Mortise and tenon
joints are used in frame, and leg and rail construction and were
used by the ancient Greeks to build ships. Haunched
mortise and tenon joints increase frame strength and bare faced mortise
and tenons keep leg and rail surfaces flush. Dovetail joints are found
in fine drawers, chests and decorative boxes.
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