I am planning to make a base for a trestle table. My problem is that because of the shape of the base (it combines two U shapes bottom to bottom, sort of) I have to change the direction of the grain twice. My plan is to overlap two one inch thick pieces which will be going in opposite directions. The joint will be five inches long. The pieces will overlap by two inches. The resulting total thikness of the base will be two inches. My concern is wood movement. Will this joint hold? It will have to hold up a table, the weight of my plate and of my elbows. I do appreciate any suggestions you might offer. Shalom
Discussion Forum
Get It All!
UNLIMITED Membership is like taking a master class in woodworking for less than $10 a month.
Start Your Free TrialCategories
Discussion Forum
Digital Plans Library
Member exclusive! – Plans for everyone – from beginners to experts – right at your fingertips.
Highlights
-
Shape Your Skills
when you sign up for our emails
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. -
Shop Talk Live Podcast
-
Our favorite articles and videos
-
E-Learning Courses from Fine Woodworking
-
-
Replies
Shalom,
I'm confused by your description of what you are planning to do. It sounds like you are planning to laminate two thicknesses of 1" stock with opposing grain direction. I would not recommend this. Instead of two U 's, it may be helpful to think of your base as an X, with two diagonal legs that are joined in a half lap (crosslap) joint where thay intersect. The legs can be laminated from thinner stock, but the grain direction should be aligned. Of course the legs don't have to be straight, you can make them up from wider stock, and shape them into whatever curve pleases you.
On old work, often the lap joint was not glued, but held together by the tenon of a stretcher running from trestle to trestle, which pierced the joint, and was wedged from the outside (tusk tenon).
Regards,
Ray Pine
Ray, thanks for your comments. I was finding it difficult to describe my project. I am trying to make a replica of a Maloof trestle table. The base on each side can best be described as looking like a shallow champagne glass with a stem and a foot. The part that holds the champagne would be the part directly under and supporting the table. Since the "legs"(feet) flair out from the stem, Malouf changes the direction of the grain. Thus the grain on the part that is on top (the part that "holds the wine) runs horizontally, the grain in the stem runs vertically, and the grain on the feet runs horizontally again. So the grain in my joints will go in opposite directions. I thought that by combining two one inch boards with the grain going in the same direction and leaving a two inch ledge, like a rabbet on each joint I might be able to join them. The overlay on each separate part would have the grain gong in the same direction but the part on the rabbet would go in the opposite. The result would be a base thats about two inches thick in total. I thought that would be simpler (given my tools and skill level) than making mortise and tenon joints. Sorry for the l-o-n-g attempt at explaining myself. I'm a retired academic. My job was to write long stuff whenever I could. I'm also not experienced in woodworker language. That's why this site is a blessing. Thanks again for your previous response. If you managed to get to the end of this treatise I would appreciate any suggestions you might have. Shalom
Shalom,
I'd cut mortises into the horizontally grained members (about 5/8-3/4", or 1/3 of the stock's thickness), and join them to the vertically grained piece with a suitably long tenon, 2" or so. A haunch (shoulder) on all 4 sides of the tenon will make the joint look nice and clean.
Regards,
Ray
Thanks again Ray. But again I need some clarification. Are you suggesting that the mortise be two inches deep to accomodate a "two inch long tenon" or that the tenon be two inches end to end. If the latter, how deep do you suggest I make the mortise. I think I see a light at the end of this tunnel. Thanks. Shalom
Shalom,
Yeah, two inches or so long tenon/deep mortise, by 5/8 (tenon thickness), by whatever width the design allows. Maybe a divided tenon at the foot, if the mortise is more than 5- 6" wide.
Regards,
Ray
Tsk ...tsk ...Shalom, you are not supposet to put your elbows on the table !
C.
Yes Mom, sorry. I knew somehow that you are watching over me. Shalom
If you do elect the "stopped sliding dovetail", check out post # 1250.11.
Frosty
This forum post is now archived. Commenting has been disabled