Mining Equipment B Double Load, the big piece will only go on a drop deck that is 13700 long It won't fit on straight deck or curtin trailer. looking for B double or 2x trucks to get this move done. there will be cranes at either end. Mining Equipment B Double Load, the big piece will only go on a drop deck that is 13700 long It won't fit on straight deck or curtin trailer. looking for B double or 2x trucks to get this move done. there will be cranes at either end.