Biscuit joints: A small 'fish' is used to help align an edge or butt joint when gluing.
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Most furniture factories in the East and Midwest of the United States made Knapp joint drawers from around 1871 to 1900. Wood panels stitched together, usually with copper wire, and glued together with epoxy resin.Īlso known as scallop and dowel, scallop and peg, pin and cove, pin and scallop, or half moon. Nontraditional woodworking joints JointĪ hidden screw is driven into the joint at an angle.Ī wooden oval is glued into two crescent-shaped holes.Īlso known as a loose tenon joint, a type of mortise and tenon joint where both pieces are mortised and the tenon is a separate piece that fits into both mortises. Ī joint in which the two members are joined by removing material from each at the point of intersection so that they overlap.Ī joint used to attach two members end to end. A V-shaped cut in the rafter connects the rafter to the wall-plate. This joint is a good strong joint to use.Īlso called a bird's beak cut, this joint used in roof construction. This is a hallmark of Mission Style furniture, and also the traditional method of jointing frame and panel members in doors, windows, and cabinets. If the tongue is unattached, it is considered a spline joint.Ī stub (the tenon) will fit tightly into a hole cut for it (the mortise). Sometimes referred to interchangeably with the dado joint.Įach piece has a groove cut all along one edge, and a thin, deep ridge (the tongue) on the opposite edge. Like the dado joint, except that the slot is cut with the grain. Receives pressure from two directions.Ī form of box joint where the fingers are locked together by diagonal cuts.Īlso called a housing joint or trench joint, a slot is cut across the grain in one piece for another piece to sit in shelves on a bookshelf having slots cut into the sides of the shelf, for example. Similar to a butt joint, but both pieces have been beveled (usually at a 45-degree angle).Ī corner joint with interlocking square fingers. This type of join is a very common joint in factory-made furniture. A screw is then inserted through an opposing slot and tightened to create a pull effect. This joint is quick to make with production line machinery and so is a very common joint in factory-made furniture.Ī threaded metal dowel is inserted into a drilled slot. The end of a piece of wood is butted against another piece of wood.
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Bridle joints are commonly used to join rafter tops, also used in scarf joints and sometimes sill corner joints in timber framing. The mate has a through tenon or necked joint. Īlso known as open tenon, open mortise and tenon, or tongue and fork joints, this joint is where the through mortise is open on one side and forms a fork shape. Due to a large surface area of long-grain to long-grain wood and glue surface coverage, this is a very strong joint. The end of a piece of wood is laid over and connected to another piece of wood. Of those, there is the a) T-butt, b) end-to-end butt, c) Miter butt and d) edge-to-edge butt.
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Types of wood joints Traditional woodworking joints Joint 1.4 Nontraditional ways of improving joints.1.3 Traditional ways of improving joints.