How are shipping and handling charges estimated?
All shipping charges are based on the billable weight of the shipment and the destination. These costs are calculated when the shipment has been packed and is ready for shipment, and will be added to your invoice total. The shipping total displayed at check out is an estimate and may be adjusted to reflect actual charges. Oversized items are noted and will be billed for the actual shipping charges. A chart illustrating current carrier Billable Weight and Oversize rules is attached here. Similar rules apply to USPS Priority Mail shipments.