Classification Details
| NMFC | Description | Class |
|---|---|---|
| 170230.00 | Roofing, zinc or copper, combined with felt or paper, saturated or plain, in boxes | 70 |
How to Determine Your Class
To find the correct freight class for your shipment:
- List NMFC 170230 and Class 70 on the BOL; no density calculation is needed since this item has a fixed class in boxes.
- Palletize boxed bundles lengthwise on 48x40 skids, strap twice in both directions, and add edge protectors to prevent metal edge crush and carton tear.
- Protect against moisture: line cartons with poly or VCI paper when shipping saturated felt, and mark “Keep Dry” to avoid wicking through paper layers.
- Avoid top-load pressure on soft copper or zinc; use cones or labels for ‘Do Not Double Stack’ and keep away from corrosives that can stain or tarnish.
Note: All classifications are subject to Item 170. Verify with official NMFC publications for the most current requirements.
Business Value
- Predictable Class 70 rating streamlines quoting and reduces reclass fees, improving rate consistency across lanes.
- Non-hazardous status removes hazmat surcharges and widens carrier options for construction supply shipments.
- Boxed packaging aligns with LTL handling, lowering claim risk and shortening dock dwell time during cross-dock transfers.
- Clear NMFC identification for roofing metals speeds audits and prevents billing disputes, protecting margins on bulk project orders.