The Maxi-Stack® IV car is the mainstay of the United States domestic double-stack car fleet because it provides the optimum balance between tare weight and capacity. It is a three-unit, articulated double-stack car that can handle containers from 20’ to 53’ long in the well and containers from 40’ to 57’ in the top position.

Dimensions
Length, Inside | 53′-2″ |
Length, Over Couplers | 203′-9.75″ |
Width, Inside | 9′-10.5″ |
Width, Extreme | 9′-10.5625″ |
Clearance | AAR Plate H |
Weight/Capacity
Light Weight | 129,500 lbs |
Load Limit/Capacity | 118,500 lbs per well |
Gross Rail Load | 485,000 lbs |
Curve Negotiability Radius
Uncoupled | 180′ horizontal |
Coupled to Base Car | 302′ |
Coupled to Like Car | 306′ |
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