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WOODWEB DISCLAIMS any and all RESPONSIBILITY and LIABILITY for the accuracy and application of the information below. Readers agree to evaluate the significance and limitations of the information provided, and accept full responsibility for the application of this information. Read More ...

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Dowel drilling and use guidelines       A quick guide to dowel clearances and practices, including drilling depth, diameter-to-edge ratios, and dowel selection. 1998.

by Jon Elvrum

Q.
What are the proper clearances to observe when boring dowel holes?

A.
1. The distance from a dowel edge to the edge of a panel should not be less than the dowel's radius.

2. When drilling into the end of a board, plan for 2/3 of the dowel's length to be inserted. When inserting into the face of a board, target 1/3 of the dowel's length. If wet glue is used add 1 mm to the bottom of each drilling. Because of a cantilever effect, the dowel strength is increased. If you use pre-glued dowels (water activated) this additional depth is not required.

3. Use straight flute dowels, not spiral dowels in sub-strater panels such as MDF or particle board. Use spiral grooved dowels in hardwood. There are illustrations available in a past WOODWEB article (you can find it by searching the archives on the phrase "dowel"), and in a Custom Woodworking Business article titled "System Drilling" (published last year).

Jon Elvrum, Director of Distribution and Sales at Ritter Manufacturing in Antioch California, is also a well known author and consultant to the cabinetmaking industry. He has written numerous articles on the 32mm cabinetmaking system and production woodworking in general.


Have you reviewed the related Knowledge Base areas below?
  • KnowledgeBase: Adhesives, Gluing and Laminating: Glues and Bonding Agents

  • KnowledgeBase: Cabinetmaking: Commercial Cabinetry

  • KnowledgeBase: Cabinetmaking: Custom Cabinet Construction

  • KnowledgeBase: Cabinetmaking: General

  • KnowledgeBase: Cabinetmaking: Residential Cabinetry

  • KnowledgeBase: Solid Wood Machining: General

  • KnowledgeBase: Woodworking Miscellaneous: Woodworking

  • KnowledgeBase: Knowledge Base

  • KnowledgeBase: Panel Processing

  • KnowledgeBase: Panel Processing: General




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