FlexScreenRetail.com offers free base shipping on all FlexScreen orders of 4 or more screens shipped to the 48 Contiguous United States. Orders including oversized FlexScreen units may incur additional charges and fees. This free shipping offer is for FlexScreen units only, and does not apply to any other products. NOTICE: FlexScreen units are made to order based on your measurements. FlexScreen units cannot be returned. FlexScreen unit orders cannot be edited or canceled once placed. Shipping and handling charges are nonrefundable. WARNING: FlexScreen is not meant to prevent children and pets from falling out of the window. Please keep children and pets clear from open window.