Roadrunner · RDFS 100-K
Roadrunner cubic capacity / density minimum fee
Roadrunner charges > 750 cu ft, <6pcf; Wt (cu ft*6pcf); cl 125 for cubic capacity / density minimum. Applies to shipments over 750 cu ft and under 6 pcf density. The figure comes from RDFS 100-K Item 577, effective Sep 22, 2025.
> 750 cu ft, <6pcf; Wt (cu ft*6pcf); cl 125
Applies to shipments over 750 cu ft and under 6 pcf density
“> 750 cu ft, <6pcf; Wt (cu ft*6pcf ); cl 125” (p. 3)
Source: RDFS 100-K Item 577 · effective Sep 22, 2025 · verified July 2026
What other carriers charge for cubic capacity / density minimum
FedEx Freight
Shipment greater than 750 cubic feet and average density less than 4 pcf
Calculated: total cubic feet x 6 lbs at Class 150 rates with 50% discount
R+L Carriers
Shipments <6 lbs/cu ft requiring 750+ cu ft; constructed weight rated at class 125
Constructed weight (cu ft × 6 lbs) rated at Class 125
Saia
Shipments 750 cu ft+ with density under 6 pcf, or 350-749 cu ft with density under 4 pcf
calculated weight (cubic feet x 6 lbs) at class 100 rate less 85% discount
Southeastern Freight Lines
Applies to shipments 750 cu ft+ with density under 6 PCF
Calculated weight = total cubic feet x 6, rated at class 150
Each figure is that carrier's published tariff amount. Carriers price this fee in different shapes (flat charge, per-cwt rate, hourly), so these are listed as published rather than ranked. Click a carrier for its citation, tariff language, and history.
More Roadrunner fees
Excessive / declared value
Detention (with power)
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Driver assist (load/unload)
Protect from freezing
Guaranteed / expedited delivery
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