Battened Plank Door Detail

      Here's a way to kerf the boards in a solid wood door to help absorb wood movement. February 5, 2007

I have laminated 5/16" v/g d/f onto 1-1/2" LVL core material and will be edge gluing together to make plank doors. I will also be inserting 7/8" diameter steel dowels (4 per door equally spaced horizontally). I will be attaching 7/8" thick by 5" wide battens on the backsides. Can anyone offer pros and cons for this method? Maybe I shouldn't edge glue them and let them float?

Forum Responses
(Architectural Woodworking Forum)
From contributor C:
How much does the LVL core grow and shrink in its extremes? Divide that by the number of expansion possible spots and it'll be clear how much movement you will need to allow for. Sounds like a well made flat door. Maybe a sheltered foyer or porch you would do okay to glue rigidly.

From contributor J:
I would definitely edge glue them. There is no place for wood movement to go but out, anyhow. I would also check the expected movement change of the LVL with the expected movement change of the vg fir. Hopefully, the two will be very close.

Here is a sketch of a common way to deal with board and batten doors to nearly eliminate growing and shrinking altogether over the entire width when "Z" bracing is not an option for whatever reason. You would glue the outer halves of the outer planks to the battens, and run the large panhead screws through holes larger than the screw diameter.

From contributor J:
I should have drawn a better sketch because the kerfs are not quite deep enough. If I were to make these doors again, especially for exteriors, I would take a chipper from a cheap stacked dado set, and grind a radius on the two teeth to eliminate stress risers. In the past I have used veining bits on a router, and it takes too long because you've got to make multiple passes or they either break or wander.

Would you like to add information to this article?
Interested in writing or submitting an article?
Have a question about this article?

Have you reviewed the related Knowledge Base areas below?
  • KnowledgeBase: Knowledge Base

  • KnowledgeBase: Architectural Millwork

  • KnowledgeBase: Architectural Millwork: Doors and Windows

    Would you like to add information to this article? ... Click Here

    If you have a question regarding a Knowledge Base article, your best chance at uncovering an answer is to search the entire Knowledge Base for related articles or to post your question at the appropriate WOODWEB Forum. Before posting your message, be sure to
    review our Forum Guidelines.

    Questions entered in the Knowledge Base Article comment form will not generate responses! A list of WOODWEB Forums can be found at WOODWEB's Site Map.

    When you post your question at the Forum, be sure to include references to the Knowledge Base article that inspired your question. The more information you provide with your question, the better your chances are of receiving responses.

    Return to beginning of article.

    Refer a Friend || Read This Important Information || Site Map || Privacy Policy || Site User Agreement

    Letters, questions or comments? E-Mail us and let us know what you think. Be sure to review our Frequently Asked Questions page.

    Contact us to discuss advertising or to report problems with this site.

    To report a problem, send an e-mail to our Webmaster

    Copyright © 1996-2019 - WOODWEB ® Inc.
    All rights reserved. No part of this publication may be reproduced in any manner without permission of the Editor.
    Review WOODWEB's Copyright Policy.

    The editors, writers, and staff at WOODWEB try to promote safe practices. What is safe for one woodworker under certain conditions may not be safe for others in different circumstances. Readers should undertake the use of materials and methods discussed at WOODWEB after considerate evaluation, and at their own risk.

    WOODWEB, Inc.
    335 Bedell Road
    Montrose, PA 18801

    Contact WOODWEB

  • WOODWEB - the leading resource for professional woodworkers

      Home » Knowledge Base » Knowledge Base Article