Winged Slat Specifications Design Our unique, proprietary co-extruded design includes a rigid, flat-tubular body with "legs" inside for extra support. Flexible and resilient winged portions are positioned on each side of the slat body. Serrations are added to the wings for easier installation and locking power. Standard Heights 4, 5, 6, 7 and 8 feet. Important: For Fence heights higher than 8FT, we strongly advise NOT to double-stack Winged Slats. If you double-stack, you will be at risk of the Winged Slats not all giving the same visual appearance or giving the same privacy effect on the top and bottom portions of the Fence. Slat Length 2" shorter than the overall height of the fence. Wind Load And Privacy Factor Approximately 90%. (based on wire mesh and amount of stretch/tension used.) Note Additional time should be allowed for installation. 25 Year Limited Warranty