NMFC Class 125 covers freight with a density between 7 and 8 pounds per cubic foot. At this density range, cargo begins to represent a meaningful cube cost for carriers — a pallet of boxed microwaves or crated windshields fills significant trailer space while contributing moderate weight, reducing the carrier's ability to load dense freight alongside it. Small household appliances dominate this class. Microwaves, vacuum cleaners, countertop ovens, and similar goods share a common characteristic: their outer packaging dimensions are considerably larger than the functional product inside. The appliance housing, foam padding, styrofoam end-caps, and outer carton all add volume without adding density, pushing calculated density into the 7–8 lb/cu ft range. Packaged auto glass is another prominent Class 125 commodity, and one of its most demanding from a handling standpoint. Windshields and side glass require specialized carriers with proper rack equipment. Many general LTL carriers decline auto glass shipments or impose strict packaging specifications. Shippers should qualify carriers for glass acceptance before booking. For shippers moving Class 125 goods at volume, the rate gap between Class 125 and Class 100 can be significant. Evaluating whether more compact packaging or palletization methods can push density above 8 lbs/cu ft is worth the analysis — even partial reclassification on large shipments produces measurable savings.
Auto glass and windshields are extremely fragile and must be transported on edge in purpose-built A-frames or glass racks; flat loading or stacking invites breakage. Crated appliances should be kept upright and require forklift clearance. Confirm compressor-equipped appliances are not laid on their side during transit.
Stowability: Crated glass and large appliances may require dedicated floor space and cannot be stacked without structural support. Boxed small appliances like microwaves or air purifiers are generally stackable and palletize efficiently. Combined loads of glass and stackable goods require careful load planning to protect fragile items.
Auto glass is one of the highest-liability Class 125 commodities — breakage is common without proper packaging, and original-equipment windshields carry significant replacement value. Appliances with electronic components are susceptible to moisture and impact damage. Shippers of glass should verify carrier acceptance policies and packaging requirements before tender.
Class 125 applies to freight between 7 and 8 pounds per cubic foot. Below 7 lbs/cu ft, freight moves to Class 150; above 8 lbs/cu ft, it qualifies for Class 110.
Auto windshields and glass panels are large, flat, and relatively thin. When packaged in protective crating or cardboard with edge protection, the outer dimensions are much larger than the glass itself, resulting in low density. The 7–8 lbs/cu ft range reflects the glass mass divided by its crated volume.
No. Many general LTL carriers do not accept auto glass or impose strict packaging and marking requirements. Specialty glass carriers and carriers with dedicated A-frame rack equipment are the preferred option for windshields and large glass panels. Always verify carrier acceptance before booking.
Microwave ovens are classified under specific NMFC items that typically land in Class 125 due to density calculations in the 7–8 lbs/cu ft range. The outer carton with foam inserts creates substantial volume relative to the appliance weight, placing the shipment in this class when density-based rules apply.