Often we find ourselves with a large amount of tension in some connections involving the roof loads and it is necessary to add some steel instead of relying on wooden pegs to do the job. This is not just a new age practice but one that has been around for a long time. An easy […]
There are a few ways to join two rafters together at the peak, one way that we have illustrated before is the tongue and fork connection. In this detail a simple rafter to rafter mortise and tenon connection is used to simplify the process of cutting the joint. Please note that the tenon and mortise […]
While this fully housed mortise and tenon joint does not have the dramatic effect that a diminished housing does, it offers a simpler look with a more traditional feel. It is the style I chose in the construction of my home and I have no regrets.
:45 – Scoring the Lines 1:07 – Cutting of the ends 1:39 – Transferring the tenon lines down the end of the timber 2:07 – Making the drop cuts down the face of the timber 2:43 – Cutting the shoulders of the tenon 3:45 – Cleaning up the skill saw cuts with a handsaw 4:12 […]
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 […]
This is an exploded view of a king post’s bottom tenon where it goes through a very large tie beam. The king post tenon is secured with pegs into the tie beam. A king post hangs down from two rafters and usually has some struts going from the king post up to the two rafters […]
Every timber gets its name from where it is in the frame. This beam is between two posts. It holds them apart from the rafters pushing them in. It is called a “Straining Beam”. Here is an exploded view of one. Sometimes they have braces, sometimes they don’t. Usually it has a standard tenon on […]
This timber detail exploded view is of a collar beam which is a 4×4 connecting to a 4×6 rafter. The pitch is 12/12, and the tenon is set off the reference face 1 1/2″ and then 1 1/2″ thick, with a 3/4″ hardwood peg.
This is an exploded view of a tongue and blind mortise at the ridge. The rafters are again 4×6 at 12/12 pitch with a 1 1/2″ tenon and mortise with a 3/4″ peg. The mortise doesn’t go all the way through the rafter and it doesn’t go all the way to the top end. This […]
This joint is known as the tongue and fork joint. Here is an exploded view of two 4×6 rafters at 12/12 pitch with 1 1/2″ tenon set 1 1/2″ off the reference side with a 3/4″ oak peg. These rough sawn rafters have also been reduced down to the next smaller 1/2″ in size at […]