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, make sure you check with a qualified engineer before you begin cutting joinery on your frame.
hi – im studing building at the moment and i noticed none of my teachers knew the origins of “dragon tie” bracing names – i found an old document from the book “DRAGON hetmi [in ArchitecBurc}etymology of dragon peices}
Out of interest im trying to find this out – maybe it comes from the vikings or perhaps an asian culture?
many thanks for any info –
Anton
Anton,
Check out http://en.wikipedia.org/wiki/Dragon_beam it has the best general info about dragon beams that I have found. Sounds like no one really know exactly where the term came from. Will add it to my list of joints I need to create for the site.
Brice
I see the pegs for the rafters in the King Post but not the Pegs for the ridge beam. How is the ridge beam pegged in this joint?
No ridge beam in this detail. If you need one then a housing of at least 3/4″ in the king post and a couple of structural screws will do the trick.