Frame work is welded aluminum angle. Seat planks are 2' x 10' anodized aluminum and foot planks are 2' x 10' mill finished aluminum. Freight to Hawaii or Alaska, as well as expedited shipping costs, will be quoted to you by email for your approval before the order ships. Because of it's size, this item can only ship by Freight instead of UPS with normal shipping time being 2 3 weeks there is no rush delivery available for this item from the day of ordering. The shipping charge of 12% covers freight shipping to a commercial address. There may also be an up charge of 45 charged by the freight line for shipping to a residential address needing a lift gate on the truck, taking the product off the truck, putting it inside a house, or taking it up a flight of stairs, etc. Please note that this item cannot be shipped internationally. Please note this item cannot ship 3 Day.