I don't know how you mean. If you want to use it as an anchor I'm not sure how you would attach your metal or siding to it, or how you'd anchor them to the ground. I would not recommend.
For what purpose? Floor or support or what? I suppose either if you lay them correctly.
I answered the wrong answer on one of the question for somebody which is embarrassing because I only counted the edge not the whole thing. This is the correct answer. I setup a excel table to make it easy for automatic adjustment by desired square feet. inch Sqin per block 8 16 128 feet Sqft per block 0.6666664 1.3333328 0.888888178 8x10 shed = 80 sqft 80 sqft / 0.888888178 sqft per block = 90.0001 ~ 90 Total Blocks Sqft 90 79.999936 Cost >= 90 @ $1.49 each $134.10 Cost < 90 @ $1.65 each $148.50