We are here in the Mohave. It almost sees the sand is quick sand. I have some large sections of 2"x12" for jacl pads but haven't put them under the jacks. Figured the sand etc was good enough. We ha...
I have used the same blocks for years. They are made up of 2 4x4's sandwiched between 3/4" plywood squares. Remember that plywood is stronger with the grain turned 90 degrees from the 4x4's. I have been in situations where the ground is unstable and the blocks press into the soil, to a certain degree. The jacks may have to be adjusted to compensate after a day or two.
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