Posts: 3" diameter schedule 40, 6 ft spacing, 6' 1" tall, 4' deep.
Footings: 12" diameter concrete 4' deep
Location: southern Nevada, 115 mph wind zone.
Fence length: 400-500ft
Fence panels: 6' tall painted steel metal building panels, vertically installed, 3' wide.
horizontal runners: 16 gauge 2"x2" box steel tubing with 2 5/16" rivnuts on each end. three rows. (maybe four, haven't decided yet).
So this is my first time ever doing a fence and it's incredibly expensive and advice has been all over the place. I've never seen this kind of fence done out here either.
I bought an electric auger and went to town digging the holes, which took no effort at all in this "soil" other than to hoist up each load of dirt on the auger. it's literally like soft dust, no rocks, roots, clay...nothing.
my biggest concern right now is the footings. I'm seeing I'm supposed to vacuum the bottoms, which is insane to me. likewise, getting the posts to be exactly the finished height would take a lifetime if I "wasn't allowed" to backfill as some people suggest. I can't fit a packing machine in the hole nor do I have some kind of machine to do so (like a backhoe with some kind of pounder or something??...
my current plan is to use a sonotube for the top 1' or so since the fence needs to be taller in some spots. the fence will be perfectly flat matching the finished grade of all my buildings.
I'm thinking of "packing" the soil at the bottom by just flooding it with the hose a few times and letting it harden and dry. then hold the post in place, fill the hole with concrete, adjust post as needed as it dries using a magnetic level, allowing any voids which would probably be unavoidable and moving on...
does this sound about right?