It’s very unlikely, but if I built the 24’ x 36’ pole pavilion I had originally planned in lieu of these, or if I had even put these in permanent bases, the impact of having the township happen upon them could be severe. With these, as much as a PITA as it would be, I can relatively empty and move one, if I need to prove it’s just a temporary wood rack. At 4 psi maximum loading, they shouldn’t even leave much of an impression in the soil, I hope.
It’s funny you mention this, as that was my original plan. I still have the 16” sonotube in my barn to prove it! In the end, I guessed that using precast block was easier and quicker, but I’m not sure I was right on that. As to cost, I was aiming to have at least 8 square feet for each of my five footers, and height varies up to 10 inches. I used about 140 of those 2x8x16 dimensional blocks, so just shy of 17 cu.ft., or 2700 lb = $150 (local price @ 80 lb bags) of Quik-Crete. Definitely cheaper, but... the time!
I started with dry stacking the 2” block, which gave me the ability to level the bases in small increments. I’d have liked to use 4” and 8” blocks in the taller plinths, but that would have required a lot more thought or the addition of 3-8” mortar to each block, to make the heights of the three block heights evenly divisible. All of these blocks are dimensional, not full 2” or 8”, to allow for mortar joint thickness.
You mean, like this?