NMFC 75925 - Concrete Forms & Fiber Ducts | Class 65–300

Note 75926: NOTE-Also applies on forms which become a permanent part of the cement or concrete structure which they retain.

To find the correct freight class for your shipment:

1. Measure and weigh every shipment bundle to calculate true density; round or nested tubes can lower cube and may shift the class within the 65–300 range.
2. Protect crush-prone fiberboard/paperboard ducts and liners with end caps, corner guards, and banding; use pallets or skids to keep items off the floor and add “Do Not Stack” if needed.
3. For long concrete forms or molds, block and brace to prevent ovalizing and slide damage; add dunnage between round pieces and secure with nylon strapping, not tape alone.
4. Note coatings/linings and whether items ship loose or packaged on the BOL; carriers may reclass if moisture-sensitive materials are not wrapped or shrink-covered.

Note: All classifications are subject to Item 170. Verify with official NMFC publications for the most current requirements.

• Density-driven classes help you optimize costs by nesting tubes and right-sizing pallets to reduce cube and avoid higher freight classes.
• Accurate NMFC 75925 usage reduces reclass fees and damage claims on crushable fiberboard ducts and concrete form liners.
• One classification covers forms, molds, tubes, ducts, and liners, simplifying SKU mapping and speeding up rating across mixed construction materials.
• Non-hazardous status broadens carrier options and streamlines paperwork, improving tender acceptance and transit reliability.