To meet the need for reliable railcars to haul aggregate, crushed rock and gravel, Greenbrier has designed the Dura-Max™, a 2,400 cubic feet open-top hopper railcar. With input from aggregate shippers, the Dura-Max™ has a 286,000 lbs. gross rail limit and transverse doors operated by a single-cylinder per set of doors for individual door control. Our steel body design provides superior strength and durability throughout the life of the railcar.


Length, Inside 34′-1.5″
Length, Over Couplers 45′
Width, Extreme 10′-3.875″
Height, Extreme 13′-4.25″
Clearance AAR Plate B


Light Weight 56,300 lbs
Load Limit 229,700 lbs
Gross Rail Load 286,000 lbs
Capacity 2,400 cu. ft.

Curve Negotiability Radius

Uncoupled 150′
Coupled to Base Car 185′
Coupled to Like Car 185′

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