National Motor Freight Classification codes for transporting furniture include Class 175, for couches and stuffed furniture weighing five to six pounds per cubic foot, and Class 200, for packaged mattresses weighing four to five pounds per cubic foot. Generally, the lower the classification number, the lower the freight charge.
An item's size, dimensions, density, handling ease, value, and liability for theft, damage and spoilage determine its National Motor Freight Classification number, according to Freight Management Logistics.
Class 250 includes bamboo furniture, mattresses, box springs and plasma TVs weighing three to four pounds per cubic foot. Class 300 includes wood cabinets and table and chair sets weighing two to three pounds per cubic foot.