Kenl-Dor® Vertical sliding doors shall be1/4” thick, low-stress translucent polypropylene. Channels shall be solid extruded aluminum 6063-T6. Doors are raised or lowered by pulling or releasing a 3/16” clear vinyl coated stainless steel wire cable that is secured to the top of the door. Kenl-Dors come equipped with cable, “S” hooks, pulleys, screw-eyes, and all necessary hardware for easy installation. Kenl-Dors are available in three standard sizes: Regular – for openings up to 29” high by 12” wide. Large – for openings up to 29” high x 17” wide. Extra large – for openings up to 34” high x 17” wide. Other sizes available. close window