Custom Service Hardware says its Designer’s Collection Rolling Door Kits feature black powder-coated steel hardware for a versatile look that is perfect for any interior space and is sturdy enough to support a loading weight of up to 110 lbs. CSH also offers parts for soft-close and bypass applications, as well as the option to purchase items either in kits or as individual components. With pre-drilled rails and rubber-lined stops, the Designer's Collection hardware kits are simple to install, the company adds.