On raised panel cabinet doors, theoretically, should the allowed expansion clearance in the stiles vary with the width of the raised panel that occupies the area between them? Is their a rule of thumb to determine this.
Frank
Sure 1/8" per foot across the grain per 5% change in Moisture Content.
One reason for finishing the backs of things as many coats as the front is to keep the whole thing from taking up moisture so rapidly. Less vulnerable to two weeks of high humidity.
I leave enough clearance to allow for the addition of space balls on each side with out completely crushing them during assembly.
"Theoretically", it depends upon the wood species, the way it was sawn from the log, the size and time of the year you made the panel, the part of the world you made it in, and anticipated seasonal moisture content where the piece will reside.
Just so happens that there is an excellent article in 12/06 FWW, on the news stands now, and entitled "Stop Guessing at Wood Movement", p78, which deals very nicely with your question.
Recommended ...
I've never used them. Think I'll give them a try. I notice Rockler sells a hundred pack or you can get a 1000 minimum direct. Where do you get yours?
Do they work on glass panels with a quarter round backer? No expansion problems but to hold the glass firm and eliminate rattle?
Frank
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