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Big-Boy could build a 2 bedroom condo in that monstrosity. :) <br /> <br />I've seen a similar article in another magazine where someone was able to make a much more efficient use of a 4x8 by cutting the helix pieces in thirds or quarters. IIRC, in that article, he used straight peices of that plywood for the vertical supports. He basically calculated the distance between levels, and cut slots in the vertical supports that the subroadbed fit into. He then used the vertical supports at the joints between the segments. That way, he didn't have to have another piece of wood above or below the subroadbed for a splice, which gave more clearance. <br /> <br />---jps
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