Shipping costs are based on the total weight of your order and the delivery location. Because the cost is based on the weight of the order and not the number of items purchased; orders with multiple items will normally be charged less shipping than if they were purchased individually. Shipping charges include carrier costs (including fuel surcharges), handling and processing fees and are subject to change without notice.Depending on the total weight, value of your order and the delivery location, different shipping methods will be available. Prior to checkout, while viewing your cart you will be offered the opportunity to enter a destination zip code to determine available shipping methods and charges. During checkout you will also be allowed to choose your desired shipping method. A small percentage of orders may have only one shipping method available. Orders over $500 dollars will be shipped with a signature required for delivery.