In this joinery example, we are detailing two variations of this double tenoned scarf joint. The first uses a hardwood wedge to drive the two pieces together and the other uses pegs. If you want or need a better method you can opt to use structural screws in place of the pegs. Both offer a […]
When a timber frame load exerts outward thrust on this through tenon with a wedge, the force is well resisted and kept in check. The wedge draws the joint tighter, adding extra strength that you could not get with just pegs. The end of the tenon is rounded in this example, which is called an […]
A tusk tenon can be used in a couple different ways when timber framing. It is most commonly used in a timbered floor system when you are joining one beam to another beam. In the first example, two pegs are employed to hold everything together and a housing is used for the primary bearing point […]
Nothing beats the look and strength of an undersquinted scarf joint with a wedge. In this detail we illustrate three types of methods to connect the two beams and joints together. Please note that the preferred method for scarf joint placement is over a knee brace, not over a post. Click Images for Slideshow and Larger Images This example […]
This mortise and tenon joint uses a wedge in conjunction with a tapered tenon and mortise to hold itself together giving you a clean looking connection. The key in this joint’s strength is to have all the bearing surfaces between the post, wedge and tenon fit perfectly. The wedge’s large surface faces outwards towards the housing side […]
This exploded view is of a king post to tie wedged tenon – a wedged king post tenon in a truss frame, from a famous meeting house. The tie is a 12 x 12, and the king post is an 11×12. The through half dovetail tenon is 3″ off the side of the king post […]
Here is an exploded view of a half lap scarf joint with table. I suppose you could also use wedges between the tables to pull the scarf together. On half has been rotated to show another view.
Sometimes in timber framing it is necessary to join two timbers end to end. This joint is called a scarf joint. One of the most popular scarf joints is the stop splayed table scarf with wedges and under squinted butts. My drawing program is meant to be used to drive a CNC machine to cut joints; […]
Here is a see through view of a wedged half dovetail tie beam tenon and post joint.
Tie Beam Tenon to Post – This is an exploded view of a half dovetail tie beam tenon and the post it connects to. The housing in the post is a diminished haunch. The wedge is usually made of hardwood.