[JWait]

Since the gutter is probably "oversize" for normal (UPS, FedEx, etc.) shipping methods you probably use a "freight" carrier, correct? If so, you probably need to look into the "Shipping Charges" section of x-cart and define a rate based on the size and weight of the item. The carrier will probably charge the same for 1 item as 10 because of the size. For instance, USPS will charge 15 Lbs for a 4 Lbs item if the box is over a specified size. I'm sure your carrier probably does the same thing. We don't ship any items that require "freight" shipping so I'm not sure how to go about setting it up, but it should be in the manual. I hope this helps.