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What size Wheel Chock do I need?

When choosing your wheel chocks, it is important to know exactly what size you need

Follow these simple 5 Wheel Chock rules:

  1. The height of the wheel chock should be 25% of the height of your wheel and fit snugly against your tyre. For example, a wheel 600mm high, would require a wheel chock of 150mm.
  2. When parking on a gradient, at least two wheel chocks are recommended.
  3. The majority of mine and big construction sites in Australia require all vehicles to have a set of wheel chocks.
  4. Park with wheels turned so that, if the vehicle rolled, it would roll towards the kerb, where possible.
  5. Leave a slight gap between the chock and the wheel, to indicate whether the vehicle has moved since placing the chocks. Leaving a gap may not be appropriate when people are working around the vehicle, such as when undertaking repair or maintenance work.
the size of a wheel chock compared to a wheel

where do I place my wheel chocks?

Chocks should be placed in the centre of, and square to, the tyre as illustrated below.

how to place a wheel chock

What is the difference between the Wombat WHeel chocks?

Size.

We have Wheel Chocks that suit light vehicles, heavy vehicles and extra-large Mining machinery.

We have the size dimensions listed under each Wheel Chock to help you choose the correct one.

Our sizes are as follows:

Suited for Light Vehicles
5T

Suited for Heavy Vehicles
20T
20TD
30T
40T

Suited for Large Mining Machinery
60T
250T
400T

wheel chock sizes

To read more about Wheel Chock compliance, CLICK HERE

“Vehicles that are not immobilised properly can pose serious risks to workers and others. Vehicle roll-aways result in a significant number of serious injuries and fatalities in Australia each year.
Roll-aways can occur with any type of mobile plant including cars, forklifts, trucks, tractors, trailers, passenger vehicles and heavy machinery. Roll-aways can occur on worksites, car parks, maintenance yards or when a vehicle is parked on the side of the road.
When vehicles that have not been safely immobilised roll-away, a person could be hit, crushed, trapped or run over, leading to serious injuries or fatalities. Injuries can also occur when a person tries to enter or exit a vehicle that has begun to roll-away.”

Examples of control measure combinations used to prevent vehicle roll-aways