What size wheel chocks do I need?

For cars and light vans (wheel diameter 500-700mm), a 150mm high chock is typically sufficient. For HGVs and coaches (wheel diameter 900-1100mm), 250-300mm high chocks are required. The chock height should be at least 25% of the tyre radius.

Are wheel chocks a legal requirement?

Under Road Vehicles (Construction and Use) Regulations and workplace health and safety law, vehicles must be secured against unintended movement when unattended, especially on gradients. Wheel chocks are the standard method during loading, unloading and maintenance.

What material are wheel chocks made from?

Rubber wheel chocks are the most common — durable, non-slip and effective on wet surfaces. Polyurethane chocks are lighter with similar grip. Aluminium chocks are used in aviation and specialist applications. For HGVs, heavy rubber or polyurethane chocks are the industry standard.

Can wheel chocks be used on ice or snow?

Standard rubber wheel chocks provide limited grip on ice. For cold climate operations, use chocks with a studded or spiked base. On ice, combine chocks with vehicle brakes. Never rely solely on wheel chocks on steep icy gradients.

What is the difference between wheel chocks and axle stands?

Wheel chocks are wedge-shaped blocks placed against the tyre to prevent rolling. Axle stands support the vehicle frame when the vehicle is raised off the ground for maintenance. Chocks prevent rolling; axle stands support raised vehicles. Both are safety-critical and must be rated for vehicle weight.