NMFC 53510 - Cork Materials, NOI | Class 50–400

Article ID

53510

Cork goods, NOI, multi-form coverage

Freight Group

UNGROUPED ARTICLES

Ungrouped items rated by density

Class Range

50-400 13 classifications

Class 50–400 per PCF rules

Hazardous

Non-hazardous cork materials

Classification Details

NMFC	Description	Class
53510.00	Cork, viz.: Bars, Rods, Sheets or Slabs, NOI, in bales, boxes, crates or drums; Chips, Shavings, Virgin Bark or Waste, NOI, in bags, boxes or drums; Composition Stopper Disks, in bags, bales, boxes or drums; Cork or Cork Composition, NOI, in bags, boxes, crates or drums; Filler, plastic, in boxes, drums or pails, see Note, item 53511; Granulated or Ground, or Bark Dust (Cork Bark Refuse), in bags, boxes or drums; Pipe or Tank Covering, with or without binder, in bales, boxes, crates or drums; Split, in sheets, in burlapped bales or bundles, or in boxes or drums; Stopper Disks or Stoppers (Corks), in bags, bales, boxes or drums; Strips, consisting of chips, granulated, ground, shavings or waste cork, machine pressed, with binder, paper or foil faced, in boxes; Subject to Item 170 and having a density in pounds per cubic foot of: Show more
53510.01	Less than 1	400
53510.02	1 but less than 2	300
53510.03	2 but less than 4	250
53510.04	4 but less than 6	175
53510.05	6 but less than 8	125
53510.06	8 but less than 10	100
53510.07	10 but less than 12	92.5
53510.08	12 but less than 15	85
53510.09	15 but less than 22.5	70
53510.10	22.5 but less than 30	65
53510.11	30 but less than 35	60
53510.12	35 but less than 50	55
53510.13	50 or greater	50

Note 53511: NOTE-Applies on plastic cork compounds such as shoe bottom, counter or strap fillers.

To find the correct freight class for your shipment:

Calculate density before booking: measure the box or crate in inches, convert to cubic feet, then weight ÷ cubic feet to pick the correct class within 50–400.
Match the pack to the product form. Granulated or chip cork goes in sturdy boxes with liners; sheets, slabs, or pressed strips belong in well-braced crates to prevent edge crush.
Protect delicate faces and edges on paper/foil‑faced strips and pipe/tank covering with corner guards, top sheets, and tight banding so freight remains stackable.
Keep cork dry and clean. Use sealed liners for bark dust or ground cork and block-and-brace in the crate so lightweight cargo doesn’t shift during LTL handling.

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

Optimize density to lower class and reduce LTL rates—tight packing of cork granules or compact crating of sheets can move freight closer to Class 50.
Lower claims risk by using rigid crates for slabs and stopper disks, cutting damage-related costs and preserving carrier discounts.
Simple, non-hazardous classification speeds quoting and tendering, helping you respond faster to customer orders and seasonal demand spikes.
Consistent box/crate dimensions improve stackability and trailer utilization, which can eliminate non-stackable fees and improve transit efficiency.

Weight (lbs)

Dimensions (inches)