The parcel shipping rate for the custom structures is always variable.  These shipping rates depend upon the weight and destination of the package.

For shipping, the structures are placed in a 14x14x14 inch box, then inserted into a 20x20x20 inch, double layered box, that is filled with packing peanuts.  This gives you three inches of foam insulation surrounding the interior package.  The parcels are now shipped by FedEx or by the U.S. Postal Service.