This configuration of the CRL51 Series Slider is used for single door with fixed panel applications where the top track mounts to a structural ceiling. Kit includes Top Track Adaptors for a fixed panel and two Track Covers to conceal the Top Track, Adaptors, and Hanger Assemblies, making for an attractive yet simple installation. Pull hardware ordered separately. One "Softbrake" is required for each direction of travel to be controlled per panel. Minimum sliding panel width of 25-9/16" (650 mm) for control in a single direction; 31-1/2" (800 mm) for control in both directions of travel. NOTE: Laminated glass should not be used.Product Warning:STRUCTURAL DISCLAIMER - All customers who in any way utilize this product are solely responsible to consult a structural engineer to determine the suitability of the product for the intended use and site conditions. All installers must be qualified and have professional knowledge about compliance with local, state and federal regulations, safety factors, and the appropriate choice of fixing material and procedures.Most shipping weights are approximate and have not been verified. If the exact weight is needed in order to determine shipping costs, and shipping costs are required in order for you to complete your order, please request this prior to submitting your order by contacting CRL Customer Service. Product images shown are of the actual product or a close representation. Colors can vary depending on your computer's video card and on how your monitor's color is adjusted.