I put this together for my old friend Glen. Yeah that's him in the pic. They are easy to do and work well and last but obviously not very portable if that's needed. Just a dry stack that fit together nicely. No mortar or concrete to crack and break with expansion and contraction from heat. I like to bury about half of the first course. That kind of locks it in place.
Layout one course on the grass. Trace it out. Cut that grass out and dig down about a foot. Fill in a layer of gravel and then a layer of sand on top of that. Level out the sand a few inches below ground level. This will give you a good sturdy level base and good drainage. Then just stack it up half bond.
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