Dense rubber blocks
Compact blocks or slabs on a pallet
48 × 40 × 30 in
Packaged weight: 2200 lb
- Cubic feet
- 33.33
- Density
- 66.00 lb/cu ft
Estimated class
Density-based
50
To estimate your shipment, use the Rubber Freight Class Calculator.
The Rubber Freight Class Examples use the current 13-tier density scale, effective July 19, 2025, and range from Class 50 to 85.
These are density-based estimates.
Rubber density calculator
A palletized rubber shipment is preloaded as an example. Adjust the packaged dimensions or weight to calculate your rubber freight class.
Your result
Cubic feet
44.44
Density
40.50
lb/cu ft
Estimated freight class
55
This is an example density-based estimate. Update any field to calculate your shipment.
Rubber shipment examples
These examples use packaged outside dimensions and the site’s density-to-class chart. They are examples only, not fixed classes for all rubber shipments.
Compact blocks or slabs on a pallet
48 × 40 × 30 in
Packaged weight: 2200 lb
Estimated class
Density-based
50
Multiple wrapped rolls secured on a skid
48 × 40 × 40 in
Packaged weight: 1800 lb
Estimated class
Density-based
55
Large lightweight molded rubber items
60 × 48 × 54 in
Packaged weight: 1100 lb
Estimated class
Density-based
85
Rubber shipment comparison
Rubber can ship as dense blocks, rolls, sheets, mats, bales, or molded components. Freight class depends on how tightly the material is packed, whether rolls can telescope, whether soft products deform under top load, and whether finished surfaces or compounds require contamination protection.
| Rubber shipment | Typical packaging | Density tendency | Stackability | Planning note |
|---|---|---|---|---|
| Rubber blocks and slabs | Banded on pallets or in crates | Very high | Usually stackable | Block movement and protect edges. |
| Sheet rubber rolls | Wrapped rolls on skids | High | Limited | Prevent telescoping and flattening. |
| Rubber mats and flooring | Flat bundles or rolls | Medium to high | Limited | Control curl and edge distortion. |
| Molded rubber products | Cartons, bins, or gaylords | Medium | Limited | Prevent compression set and contamination. |
rubber shipping options
The right service depends on rubber size, packaging, stackability, and handling needs.
| Rubber shipment | Common shipping option |
|---|---|
| Dense blocks or slabs | Standard LTL |
| Sheet and mat rolls | Protected LTL |
| Molded rubber parts | Standard or limited-stack LTL |
| Oversized rolls or specialty compounds | Specialized service |
Large, irregular, non-stackable, unusually valuable, or specially handled rubber shipments may need carrier review before booking.
Freight Planning Calculators
Use the freight class, density, pallet, and linear-feet calculators to plan your packaged LTL shipment.
Estimate freight class from packaged dimensions, weight, and density.
Calculate cubic feet and pounds per cubic foot for packaged freight.
Plan pallet dimensions, shipment weight, density, and configuration.
Estimate trailer-space usage for pallets and non-stackable freight.
Freight classes shown on this page are density-based estimates for shipment planning. Actual classification may also depend on value, handling requirements, liability, stowability, dimensions, and other commodity-specific factors. Confirm the final freight class with your carrier, broker, or official NMFC resources before shipping. NMFC® is a registered trademark of the National Motor Freight Traffic Association, Inc. FreightClassCalculator.tools is an independent calculator and is not affiliated with, endorsed by, or licensed by NMFTA.