Way to go, Sir Intimidator ! Am a 10`X 10` thick piece of plastic, 105 blocks, a pickup truck bed of fine gravel, 22 80lb bags of Quikcrete and 3 `young guns` short of finishing the "Big Dig"...next have to disassemble a 40` tall white pine tree, probably over the winter. HM...wonder how many "BB"s could make outta said tree ?