Welcome to CN Metals LLC located in the beautiful mountains of Western Maryland. We specialize in metal roofing and siding for residential and commercial buildings. Our overhead door department offers a variety of garage door systems for residential and commercial applications. Experienced installers provide full service garage door and opener installation at your home or business. CN Metals will help you design your pole building/garage and provide a quote for your project. Our experienced staff offers a professional attitude with service. Delivery services provided to Maryland, West Virginia, Pennsylvania and Virginia.