We do not normally accept backorders.  If an item is out of stock it will not allow you to add it to the cart.  But you do have the option to add yourself to the waiting list and get an email alert when the product comes back in stock.  It is possible that there could be cases where there is an error in the inventory count and you are able to place an order for an item that is actually out of stock.  If this happens, we will contact you to resolve the situation.