
Joinery
Here you'll find basic definitions of each kind of joiner, pulled from an online source, as well as some companies that make them that are worth checking out. Companies are not listed in any particular order and are not the only options out there. We always encourage you to do your research, but this may give you a place to start. For questions about which one is right for you, or other questions you may have, head over to our Facebook Group and ask away!
Biscuit Joiner

A biscuit joiner, or plate joiner, is a woodworking tool used to join two pieces of wood together. A biscuit joiner uses a small circular saw blade to cut a crescent-shaped hole (called the mouth) in the opposite edges of two pieces of wood or wood composite panels. An oval-shaped, highly dried and compressed wooden biscuit (beech or particle wood) is covered with glue, or glue is applied in the slot. The biscuit is immediately placed in the slot, and the two boards are clamped together. The wet glue expands the biscuit, further improving the bond. (source)
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Biscuit Joiner companies worth checking out:
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Chicago
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Porter Cable
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Grizzly
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Dewalt
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Lamello
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Makita
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Wen
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Domino Joiner

A Domino joiner is a biscuit joiner with a few key differences. The Domino version works similarly; it cuts slots in two pieces of wood and uses a piece to connect them. The first key difference is that the domino biscuit is rectangular-shaped, unlike the traditional biscuit, which is oval-shaped. Another significant difference is the biscuit material. Domino biscuits are typically made from beech or mahogany, while traditional biscuits are made from composite wood. It works like a biscuit joiner, except the domino joiner uses a sharp router bit that sweeps from side to side to create a square-shaped cut, and the operator controls the depth of the cut. You also use a domino joiner, the same as a biscuit joiner; Mark the wood, place the joiner on the marks, and apply pressure to create the cut. Remember, one of the differences between these machines is that the user controls the depth of the cut with a domino joiner, so be mindful of that when applying pressure to your equipment. (source)
Domino Joiner companies worth checking out:
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Festool
Doweling Joiner

A doweling joiner is a woodworking power tool that specifically drills precise holes in wood pieces, allowing for the insertion of wooden dowels (cylindrical pegs) to create a strong joint between two pieces of wood, essentially acting as a mechanical fastener to connect them together; it's used to make "dowel joints" which are commonly used for reinforcing butt joints in furniture and cabinetry construction.
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Doweling Joiner companies worth checking out:
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Freud
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Grizzly
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Triton
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Mafell
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AONLLEN