Multi-Level Automotive Flatcar Products

Our AAR approved chocks, bridge plates, and door edge protection solutions are designed for ease-of-use for increased efficiencies while minimizing vehicle movement and damage. The entire product line is compatible with bi-level, tri-level and convertible auto racks.

Our design and development team also effectively assesses railroad industry standards and customer requirements to design and manufacturer customized auto rack solutions.

Learn more about Holland's damage protection products in Railway Age.

Door Defender

Our Door Defender Protection System has a rugged outdoor-grade polyethylene construction featuring a patent pending bumper profile that acts as a spring to absorb door impacts. Door Defender is entirely waterproof and has been impact-tested to 3,000 cycles in conditions as harsh as -40 F and +130 F. The system includes a "one-size-fits-all" side post guard that stretches to cover nearly all auto rack structural elements and Holland's trusted nylon buttons with triple engaging lips.


  • Cross linked, closed cell polyethylene foam
  • Now water absorption
  • Special nylon button with triple engaging lips
  • No glue – easy to remove
  • Side posts, cross-bracing and gussets are foam covered to eliminate door to metal auto rack contact
Part Numbers:

  • 74929 Expandable Side Post Guard
  • 75028 96'' Bumper for A/B Deck
  • 75027 94'' Bumper for C Deck
  • 74968 Spring Clip (C Deck)
  • 71981 Button
Patent Number: 10,407,085



Grate Lock Track

Holland's Grate Lock Track (GLT) is a key component to our vehicle restraint product offerings. The superior construction and galvanizing of the GLT ensure excellent durability in the demanding auto rack environment. The Lock n Load Chock works seamlessly with the GLT eliminating jumped chocks.
Part Number:

  • 74314 Full Panel
  • 75053 RH Notched Full Panel
  • 75054 LN Notched Full Panel
  • 74312 Base Hinge Full
  • 74313 Cap Hinge Full


LocknLoad Chock

Holland offers a Complete Vehicle Restraint System that includes the LocknLoad Chock (LnL) in combination with our Grate Lock Track (GLT). The LnL Chock works seamlessly with the GLT eliminating jumped chocks.
Our LocknLoad Chock is Conditionally AAR Approved.
Patent Number: 9,555,816

 For Holland's Instructional Installation Video click here for English,  Spanish, or for French.


Tri-Lo Chock Model 2

Our answer to the industry need for a low profile chock for Tri-Level auto racks. The lightweight, durable design leads the way in minimum clearance, eliminating the need for risers commonly used by competitive chock manufacturers.


  • AAR Approved
  • Low-profile design
  • Lightweight
  • Protective coating
  • Durable steel body
  • Easy to install and remove
  • Universal chock body
  • Familiar design
Part Numbers: 75670R – Short Strap and 75680R – Long Strap

 For Holland's Instructional Installation Video click here for English or here for Spanish.


Winchock Tie Down Arrangement

The Winchock Tie Down Arrangement System is used to secure large rubber-tired vehicles such as SUV’s, buses, fire trucks, tractors, and more that would normally be transported in a uni-level rail car

Uni-Level Chock System


Looking for more information? Check out the Holland Library for additional literature and videos, or contact us.