am building a dining pavillion,20 ft. square,6" pitch,4x12 girders with 4x12tie beams(2)@center of girders,octagonal kingpost with 4" sides,4x12 hip rafters,3x10 common rafters and jacks.my question is"how do i make the connections at the post (rafters and tie beams)and what technique i.e.mortise/tenon? peg,bolt or are either even necessary at rafter/post connection? how about the connection at tiebeam/king post? Help! I'm a simple stick builder, this is my first foray into the world of timber frame type construction. any suggestions would be appreciated!