37370-1
37370-2
37370-3
200
100
70
--
--
--
Less than 9
9 but less than 18
18 or greater
Less than 9
9 but less than 18
18 or greater
Almost all U.S. LTL carriers use NMFC freight classes, although some are attempting to move to a dimensionally-based system.
Your freight cost is determined by a number of variables, such as how far your shipment needs to go, the freight class number, whether or not accessorials are needed, as well as fluctuating fuel costs and truck capacity.
Yes. If your shipment can be stacked, it allows the carrier to fit more freight into their truck.