Attaching seat to chair apron

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Forum topic by WoodWorkerWarren posted 10-07-2009 12:14 AM 1069 views 0 times favorited 1 reply Add to Favorites Watch
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10-07-2009 12:14 AM

Hello Everyone.

I am new here, but started working with wood in high school (almost 35 years ago) but have never been able to really spend the time needed to stay sharp at it. Anyway, I am building a little ladder back chair for my son, and have a question on attaching the seat to the aprons. The seat is 1 3/8 inch thick and roughly 13 inches wide. I live in Tennessee so humidity is an issue, but is the seat small enough that I do not have to worry about seasonal movement, or should I use some form of table top fastener? If a fastener is the way to go, is there a simple but cool shop built design you like to use. I would rather not use a store bought metal one.
Anyway, thanks for any help you can impart. This this is an amazing site and a priceless resource.

Thanks Again, Warren

-- All things are possible through those that have enough MONEY.

1 reply so far

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2821 posts in 3618 days

#1 posted 10-09-2009 08:28 AM

I’m surprised this slipped through the LJers grip. Normally there are an abundance of answers to a question like this. Anyhow, some material is more stable than others. For instance bubinga is very stable in service, but maple will move all day long. It could be somewhat difficult to answer the question because you don’t have a design posted or explained. Since you are using aprons however, their grain will be running left to right, and the seat will be going front to back. This means that the apron cannot move with the seat, and therefore some sort of alternate method needs to be used to fasten the seat. There are many ways. Figure 8 fasteners are nice, but they are metal. (you would never see them unless it folds somehow exposing the bottom). There are z shaped fasteners where you need to run a groove in the apron. One side of the fastener fits into the groove, while the other accomodates a fastener to the seat. You can make these out of wood. You could also use pocket screws and widen the holes. Or run stretchers horizontle fastened to the aprons. You would then use a regular fastener in a widened hole.
Essentially you just want to make sure the seat can move width wise, so it will prevent cracking, etc.

Hope this helped.

-- ~ Inspiring those who inspire me ~

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