Classification Details
| NMFC | Description | Class |
|---|---|---|
| 186991.00 | Lattice-type or framework-type construction: | |
| 186991.01 | SU; or in sections not nested: | |
| 186991.02 | Largest straight-line dimension, other than length, not exceeding 30 inches | 100 |
| 186991.03 | Largest straight-line dimension, other than length, exceeding 30 inches | 200 |
| 186991.04 | In sections, sections nested: | |
| 186991.05 | Largest straight-line dimension, other than length, not exceeding 30 inches | 70 |
| 186991.06 | Largest straight-line dimension, other than length, exceeding 30 inches | 150 |
| 186991.07 | In sections, each section KD flat | 100 |
| 186991.08 | Completely taken apart, other than in sections | 55 |
How to Determine Your Class
To find the correct freight class for your shipment:
- Measure the true overall L x W x H, including protruding tabs, gussets, or flare. This item’s class is set by dimensions, not density.
- Bundle uniform lengths with steel or poly banding plus edge protectors; add skids to stabilize open lattice and minimize height growth.
- Nest or telescope frames where safe to cut the cube; e.g., stack scaffold-style frames inside each other to shorten overall height or length.
- Shield snag points on wire/metal lattice with corrugated wrap, block the bundle to prevent flex, and list NMFC 186991 on the BOL to avoid reclass.
Note: All classifications are subject to Item 170. Verify with official NMFC publications for the most current requirements.
Business Value
- Dimension-optimized bundling can move freight toward the lower end of Class 55–200, reducing LTL rates and accessorial risk.
- Faster quoting and booking since class is driven by size—no density studies or calculators needed.
- Lower claim exposure by protecting open frameworks from fork tines and strap abrasion, preserving coatings and welds.
- Non-hazardous status broadens carrier options and lanes, improving service reliability and transit times.