Given 30 square feet per rack (which includes aisle ways, door swing space, etc), the 40 racks would require 1, 200 feet of floor space.

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He had brought rather non-standard electricity to it, digging his own trench down from the house, but even more ingeniously, he had made a little hole, about two inches square, in the plywood of the wall facing the house and put a tiny swing latch on it.

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