DOG SOLUTION SPEC SHEETS Tri-Kennels First floor back-to back runs consist of Mason Sani-Kennel (see specifications) with the lower run of the K-9 Double Stacked System on the back. Dimensions are customizable. Transfer Doors (see specifications) are available to provide dog access between the lower back-to-back runs. Upper level K-9 Cabins must be the same width and depth as the lower level. The upper level run may be built with or without a trench drain that connects by means of PVC piping to the first floor trench drain. Upper level floors may be PVC composite board or fiberglass reinforced...