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NMFC 35500 - Foundation Ventilators | Class by Density

Article ID
35500
Foundation sash-screen ventilators, boxed
Freight Group
BUILDING MATERIALS, MISCELLANEOUS, GROUP
Miscellaneous building materials category
Class Range
N/A 0 classification
Class determined by PCF under Item 170
Hazardous
No
Not regulated as hazardous

Classification Details

NMFC Description Class
35500.00 Ventilators, foundation (Sash and Screen combined), NOI, in boxes, subject to Item 170 and having a density in pounds per cubic foot of:

How to Determine Your Class

To find the correct freight class for your shipment:

  1. Confirm each shipment is in rigid boxes and cushion the sash-and-screen assembly so mesh and frames cannot flex under stack pressure.
  2. Weigh the boxed units and calculate shipment density (total weight ÷ total cubic feet) to assign class per NMFC Item 170.
  3. Palletize with a flat top layer, no overhang, and use corner boards; avoid top-load pressure directly over screened areas.
  4. Mark cartons as “Foundation Ventilators—Sash & Screen” and note count, weight, and cubic feet on the BOL for quick inspections.

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

Business Value

  • Density-based class lets you optimize carton size and pallet layout to improve PCF and reduce LTL rates.
  • Clear Item 170 documentation lowers the risk of reclass fees and carrier inspections delaying delivery.
  • Protective boxing and bracing minimize mesh damage, cutting replacements and claims costs on jobsite-bound materials.
  • Non-hazardous status streamlines booking across carriers, helping secure faster pickups and more competitive freight quotes.