I'm working on attaching my meter socket riser to my metal barn. I have a main support beam that runs the length of the building (Red beam in bottom of photo). I'm running a 10' section of superstrut/unistrut up the inside of the wall (Green strut in photo) and connecting all my parts to this strut.
I don't want to cut into this beam to run the superstrut all the way to the roof line to the attach point of the riser bracket. Doing so would violate the integrity of the support beam.
I want to build up a "notch" to go around the beam with superstrut.
Does this look ok to basically have 4 struts bolted together (1,2,3,4 in photo) and then connected to a vertical strut(5) to match up with a horizontal strut(6) bolted to the main strut(7) all with 3/8 or 1/2 bolts?
If so, should I use any special bolts for strength or just the hot dipped galvinized ones?