What is the purpose of wheel chocks?

Wheel chocks are a wedge of sturdy material, such as polyurethane or rubber, placed against a vehicle’s wheels to prevent accidental movement.

Are wheel chocks necessary?

If you work on your car and use a jack, wheel chocks are a necessity. Parking brakes typically are for the rear wheels only, and if you are lifting the rear of the car and the rear axle is up in the air, the front wheels are still free to roll. Using wheel chocks will prevent any unwanted rolling.

What can I use to block a tire?

Wheel chocks are small wedges made of rubber, plastic, or wood, which are designed to stop a vehicle (or isolated tire) from rolling or moving accidentally. They are also called wheel blocks, tire chocks, trailer chocks or wheel stops.

How many chocks do I need?

OSHA standard 29 CFR 1910.178 requires vehicle operators to set their truck and trailer brakes and block their wheels to prevent vehicle movement. The standard notes that chocks should be placed under the rear wheels, which means two chocks should be used – chocking just one wheel isn’t enough.

Can I use bricks as wheel chocks?

Yes I’ve used a brick under All on the ground wheels at times, but as has been suggested a chock designed for such, is Way safer, so we shouldn’t regularly compromise on safety when under a vehicle.

What does chalk the tires mean?

Known as “chalking,” it’s when parking enforcement officers use chalk (or a paint pen or similar) to leave a little mark on a car’s tire in order to help them track how long the vehicle stays in a given spot.

How many wheel chocks do I need for a car?

The standard notes that chocks should be placed under the rear wheels, which means two chocks should be used – chocking just one wheel isn’t enough. If operators are chocking both sides of the wheels, then you must have a total of four chocks – two for each side.

How many wheels should be chock?