NMFC 32275 - Brick, Blocks & Tile | Density Class

Note 32276: NOTE-Does not apply on stone pavers or veneer stone.

Note 32277: NOTE-Applies only on cement or mortar of the kind used in kilns or industrial furnaces.

To find the correct freight class for your shipment:

1. Calculate density for your shipment: weigh the packed boxes/crates and measure the exterior length × width × height to get cubic feet. Example: 1,800 lb on a 48×40×36 in crate = 40 ft³, so 45 PCF for class selection under Item 170.
2. Match packaging to material type. Common clay or concrete bricks can ship in heavy boxes or crated packages; glazed or glass-faced bricks and glass blocks need rigid crates with dividers and corner protection; insulating firebrick requires tight fill to prevent chipping.
3. Document clearly on the BOL: “NMFC 32275, [material], [packaging].” For example, “NMFC 32275, glass blocks, crated.” List piece count, pallet count, and note handling cues like “Do Not Stack” for fragile tiles.
4. Build a stable unit load. Use full-deck pallets under boxes or crates, no overhang, 2–3 steel or poly straps, and stretch-wrap with edge guards. For jobsite or mill deliveries, schedule liftgate or forklift access in advance to avoid delays.

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

• Accurate density entries reduce reclass and inspection fees, tightening LTL quotes and often lowering costs when brick and block are packed efficiently.
• One NMFC for many products (common brick, refractory shapes, glass blocks, tower packing) simplifies procurement, documentation, and routing across plants and jobsites.
• Right-size crating for glazed, enameled, or glass units cuts breakage and claims, keeping projects on schedule and avoiding costly reships.
• Non-hazardous status streamlines carrier selection and avoids hazmat surcharges, improving transit options for heavy construction freight.