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	This arbor design is made from western red cedar and measures 22x24 at its widest and longest sides.
It is supported by four 6x6 columns and beams are secured to the existing structure with specialy made 1/4" thick steel brackets.
Each 24" on center 2x12 joist is inline with each beam rather than resting on top. Each joist is notched to set on a 2x6 ledger board secured flush with the bottom of each beam.
	Pressure blocking between each joist together with the ledger board secures each joist to the beam so that no brackets are needed.
The longest beam would have to span over 21', therefor a specially made beam was made from 6x12 timbers ripped to 3x12, than a 1/4" steel plate was sandwiched between each 3x12 to form a flitch beam.
	Each beam was bolted together with 3/8" galvanized bolts staggered every 12". The pressure blocking between joist served to hide all the bolts securing flitch beams and wall anchors.

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