Box Dimensions:

Amazon requires that boxes containing multiple standard-size items must not exceed 25 inches (around 63.5cm) on any side. A box may exceed teh 25 inch limit if it contains oversize units that measure longer than 25 inches. Boxes that are excessively large relative to the over size units may be subject to restriction of shipping privileges, additional fees, or refusal at a fulfillment center.

Box Weight:

Amazon requires that boxes must not exceed the standard weight limit of 50 lb, unless they contain one single oversized item that exceeds 50 lb. 

- For a single oversized item that exceeds 50 lb, attach a label that clearly indicates "Team Lift" on the top and sides of the box.

- For a single oversized item that exceeds 100 lb, attach a label that clearly indicates "Mechanical Lift" on the top and sides of the box.

This is also the requirement of most carriers such as UPS, Fedex, and DHL due to occupational health and safety concern.

Amazon's carton dimension and weight polices are strictly enforced. Sending oversize/overweight cartons to the fulfillment center may lead to blocking of future shipments.