Check the LTL class input before you compare rates
LTL means less than truckload: freight shares trailer space rather than reserving an entire vehicle. It serves loads that do not fit ordinary parcel handling but do not need a full truck. This calculator prepares the density part of that shipment description. It does not turn measurements into a transportation charge, select a carrier, or decide whether a load qualifies for a particular service.
Why the class belongs in a rate request
Class is an input to class-based LTL pricing. Changing it can change the rate applied to the same freight, so leaving it unconfirmed can make two quotations difficult to compare. It does not determine the entire bill by itself: the lane, weight, service requirements, tariff, and commercial terms also matter. A full truckload request focuses on the vehicle and movement being purchased; a parcel shipment follows the selected parcel service's rating rules. An LTL density class should not be transferred into either workflow as though it were a universal shipping price.
Calculate separate pallets, then inspect the combined figure
Set the quantity to the actual number of pallets. Each row takes its own outside length, width, total loaded height, and loaded weight. A taller second pallet therefore contributes more volume even if its footprint matches the first. The calculation adds the individual cubic footages and weights, then divides those totals. It never multiplies one pallet's dimensions by the count while silently assuming all the other pallets are identical.
For example, a 36 by 36 by 48 inch pallet weighing 540 pounds occupies 36 cubic feet and has density 15.00 pounds per cubic foot, suggesting class 70 on this scale. Add a 24 by 24 by 36 inch pallet weighing 90 pounds: its volume is 12 cubic feet. Together the example loads weigh 630 pounds, occupy 48 cubic feet, and average 13.12 pounds per cubic foot when truncated for display. Their combined density suggests class 85.
Mixed loads still need a classification decision
The combined result describes the arithmetic of shared volume, not permission to merge different commodity classes on a bill of lading. Keep separate goods descriptions and applicable classes where required. Density alone does not assess special handling, stowability, or liability. Use the expanded calculations to verify the measurements, then confirm the correct classification and rating treatment for the actual LTL load. Carrier LTL guidance provides context for the service distinction.