Step 1: Materials
(10) 1"x2" rough cedar from a local lumber yard. They were available in 12' lengths, so I had to cut-off 2' off of the (9) I used for the vertical fan part. I used (1) 12' length to the horizontal braces.
(2) 12" Lengths of 1-1/2" Angle Iron
(2) 18" Lenths of 1" Solid Round Iron Rod
(4) 1/4" x 8" carriage bolts or all-thread w/ required washers & nuts
(30+) 1-5/8" galvanized deck screws
(20+) 2" galvanized deck screws
(6+) 3" galvanized deck screws
Step 2: Base Bracket
2. Weld/bolt the rods to the angle iron leaving as much of the rod below as possible. If you don't have access to a welder, you could omit the rods by cutting the angle iron pieces longer (24-30") & push one end into the soil.
Step 3: Drilling
Step 4: Assemble Base Bracket
Step 5: Horizontal Braces
This is the point where you can decide how wide you make your trellis. This trellis was designed with the width of top horizontal brace matching the width of the opening between the two windows it was going between (88"). It had also been decided that we put the horizontal brace even with the top plate of the wall that it would be attached to (approx 9' up from the soil level) so that we wouldn't have to drill into the masonary. That also helped to determine the 10' height of the trellis (added 12" above the top horizontal brace) . A more agressive variety of climbing rose may have required a taller trellis, but it will probaly take 2-3 more years for this variety to reach the top of this one.
With (9) verticle 1x2's making the fan, that allows them to be spaced at 11". Cut the horizontal brace at 90" to allow for a little overhang. Predrill holes for 1-5/8" deck screws.
Don't make a 10' trellis any wider than this one. There was a small knot in one of theoutside 1x2's on this one & when I pulled it out to its's mark on the brace it broke. It had to be spliced back together (see 2nd pic) & traded out with a 1x2 without a knot in it.
I had (9) 24" 1x2's left after, so I placed one as a brace near the bottom with a little bit of overhang. Then there was one more 1x2 left that was just long enough to make the middle brace.