What characteristic defines box cribbing in vehicle stabilization?

The defining characteristic of box cribbing in vehicle stabilization is that cribbing is laid parallel with additional layers stacked at right angles. This method creates a stable and secure structure by distributing the weight of the vehicle evenly through the layers and maximizing the surface area that contacts the ground. The cross-laying technique enhances the overall strength and stability of the cribbing system, allowing it to effectively support heavy loads and prevent shifting during the extrication process.

In contrast, the other options do not accurately portray the principles of box cribbing. For instance, using a circular structure or requiring a specific height in relation to the cribbing length are not standard characteristics of this technique, nor is it universally made from steel components, as box cribbing can also be constructed from wood or other materials depending on availability and application. Understanding these foundational techniques and their applications is crucial for effective vehicle stabilization during rescue operations.