The code of the rail is the actual size of the rail in height. It has nothing to do with scale. O scale is (1/48th) or 1/4 inch to the foot. A doorway in ON30 is the same size as the doorway in O scale, it has nothing to do with code of the rail. BTW if your flanges are hitting the TIES at .070 inches you have some really bad equipment! Russ
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