We manufacture, sell factory direct and ship nationwide our line of exterior storm windows and 3-season room panels. We manufacture in Wisconsin and Iowa. Our storms and 3-season room panels are manufactured using a very special cast PVC film, crystal clear, 4 mil. or 8 mil. thickness. The frames are 3/8" x 15/16" or 1" x 1" powder coated painted aluminum. You may order as single or double glazed. We've had them installed on homes and businesses for over 10 years here in the USA and they are standing up perfectly. We can manufacture the 3-season room panels with screens built into them as well. The actual cost of shipping and price per unit will be determined by the size, quantity and your location.