Subclasses for
34640-1
34640-2
34640-3
34640-4
70
70
55
55
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Faced with stone aggregate, in packages.
Faced with stone aggregate, insulated or not insulated, reinforced, in packages.
Faced with stone aggregate, with or without sheet steel backing, in packages.
Artificial stone, hollow molded or in relief, applies on articles named or on corner pieces, molding or trim, only when containing 50 percent or more by weight of ground stone, with mineral fiber reinforcement and plastic binder, in boxes.
Plywood
Cast stone
Gypsum or cement asbestos board
Artificial stone, hollow molded or in relief, applies on articles named or on corner pieces, molding or trim, only when containing 50 percent or more by weight of ground stone, with mineral fiber reinforcement and plastic binder, in boxes.
Plywood
Cast stone
Gypsum or cement asbestos board
An organization known as the National Motor Freight Traffic Association (NMFTA) publishes a list of freight class designations, codes, and subclasses for many commonly shipped commodities (https://classit.nmfta.org/). You must pay a subscription fee to view this list. For more information about freight classes for free on our freight classes pages.
The first step in determining your freight class is to take measurements. Measure the height, width and depth of your shipment then multiple those three measurements together for the total cubic feet. Then divide the total cubic inches by 1,728 (the number of cubic inches in a cubic foot). Finally, divide the weight (in pounds) of the shipment by the total cubic feet.
Multiply the length, width, and height of your shipment, then divide the total weight of your package by that number. If your shipment is 4 feet long, 5 feet wide, and 4 feet tall, you would multiply 4 x 5 x 4 to get 80 cubic feet. If it weighs 800 pounds, you would divide 800 / 80 to get 10 pounds per cubic foot.
