Okay, one of two carports is setup. I have the second one, but have not had time to set it up.
I was going to buy heavy cantilever racks, and even ordered some from a vendor who then changed the lead time by several weeks after they had my money, so I canceled the order.
Then I thought about it. Most of my working stock is aluminum. I order upto 900-1000 lbs at a time, and more than half is always gone by the time I make another order that size. Special size stock is usually ordered in less than bar size. Just enough to complete the job it is for. I almost never have more than 2000lbs of aluminum on hand and usually much less.
I ordered two of these:
https://www.zoro.com/vestil-self-supporting-rack-2000-lb-sr-ss/i/G5580508/I figure if I set them in line with each other I can (if loaded evenly) store 4000lbs (probably a little more due to safety margins) of aluminum bar stock on them, and they are cheap compared to the heavy cantilever racks I was looking at. I would have preferred single sided heavy cantilever racks due to the smaller space they take up for their load capacity, but price and lead time (I know they would have been here by now, LOL) made the choice for me. Also, Zoro sends out 20% off coupons. I used one.
The new racks should be here next week.
I am already using the space outdoors under the carport between the building and the shipping container for prepping stock with a carbide tooth metal cutting chop saw. It cuts stock in a fraction of the time of the bandsaw. I can't leave it unattended like the bandsaw, but its so fast it doesn't matter.