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 […]
Mortise and Tenon with an All Thread Rod Read More »
This rafter to tie beam connection, strong and simple to cut, joins a rafter to a tie beam in a wide variety of truss combinations. The notch is what creates the strength in this connection. It uses the roof pitch
Rafter to Tie Beam Connection Read More »
A stop splayed scarf joint is used to create longer timbers for use in plates, beams, rafters and posts when you cannot find a long enough timber to span the distance you require.The stop splayed scarf that is displayed here
Stop Splayed Scarf Joint Read More »
While joining a strut from a king post or bottom chord is a simple timber frame joint to cut, it is essential to look at the connection details. In this upper king post strut to rafter detail, we use a 3/4″
Upper King Post Strut to Rafter Detail Read More »
A classic joint for a king post to rafter connection uses a 1 1/2″diminished housing, and because it is designed for oak it uses a 1 1/2″ tenon. This upper king post joinery is a classic and robust connection. As always,
Upper King Post Joinery Detail Read More »
While this fully housed mortise and tenon joint does not have the dramatic effect that a diminished housing does, it offers a more straightforward look with a more traditional feel. It is the style I chose for the construction of
Fully Housed Mortise and Tenon Joint Read More »
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.
Here is an exploded view of a pair of purlin joints where they meet the rafter. An experienced timber framing engineer should review each frame design for the exact design of this joint.Loads, spans, type of wood, and possibly other factors
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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
Rafters at Ridge Tongue and Blind Mortise Read More »
This joint is known as a “step lap rafter tail,” and the joint in the plate is known as a step lap rafter seat. I believe it gets its name as the tail laps over the plate, which creates an
Step Lap Rafter Tail and Plate Read More »
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.To ensure a
Rafters at Ridge – Timber Frame Tongue and Fork Joint Read More »
Another scarf joint that I have used is the “bladed timber frame scarf joint.” This drawing is of a 6″ x 10″ bladed scarf joint that we cut to create one long timber for an addition to an existing barn.
Bladed Timber Frame Scarf Joint Read More »