Shipping is shown as Free for this item on Home Depot's product page.  See image. Please be sure that you have the store location for Home Depot (top left hand corner) set to zip code 85018 Phoenix, AZ (Thomas Rd location) to see what Sku Grid sees.  Please note that Home Depot shows different pricing and availability based on the store location and keep in mind that what is shown can also change by the time you go to checkout depending on the buyer's location.  As such, Sku Grid has to keep prices/stock stable so it has to restrict to one zip code and that is the one that Sku Grid uses.