Figure 80 Transfer Walls shows a transfer wall from a side view. The top of the transfer wall is dimensioned 16 inches (405 mm) minimum to 18 inches (455 mm) maximum from the pool deck. The depth of the transfer wall is 12 inches (305 mm) minimum to 16 inches (405 mm) maximum. A grab bar is shown on the top of the transfer wall. The top of the gripping surface of the grab bar is 4 inches (100 mm) maximum above the transfer wall surface.