This detail was created out of a need to join a timber frame corbel, post and plate together in a hexagonal structure that will serve as a gate hut for a local golf club. In this case the corbel is […]
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Often folks want to add a bit of style to their roof line by adding another roof pitch to the equation, called a witches hat roof, it incorporates a witches hat rafter (also called a broke back rafter) to achieve this look. This
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Using a ledger, a post and plate system along with shed common rafters is a fast and effective way to construct an exterior porch or storage area. In this shed rafter detail, the 4×8 rafters are housed into the upper
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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
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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
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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″
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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,
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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
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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
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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
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