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Trusses
Hexagonal Heavy Timber Frame Boss Pin Detail
Just the housings and rafters to cut this boss pin detail would certainly challenge any timber framer. The central post is typically called a boss pin, and it is used when you have several hips and valleys coming together at …
Timber Frame Lookout Detail
Creating a lookout in the gable of a home creates a dramatic effect both visually and structurally. Here is a timber frame lookout detail.
King Post to Tie Wedged Tenon
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 …
King Post Tenon Through Tie Beam
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 …
Collar Beam Timber Detail
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 …
Step Lap Rafter Tail and Plate
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 it name as the tail laps over the plate which creates an …
Rafters at Ridge – Timber Frame Tongue and Fork Joint
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 …
Rafters at Ridge – Timber Frame Tongue and Fork Joint Read More »
Half Lap Timber Frame Rafters at Ridge
This is an exploded view of a pair of 4″ x 9″ timber frame rafters where they meet at the ridge. They are connected with a half lap joint and peg. The roof pitch is 8/12 and the peg is …