What are Wheel Chocks and What do they do?

Wheel chocks are blocks or wedges placed against a tire to help prevent a parked vehicle or trailer from rolling. They may look like simple towing accessories, but they play an important safety role whenever you park, load, unload, hitch, unhitch, or set up a trailer at a campsite.

The right wheel chock depends on more than price or material. Tire size, trailer weight, ground conditions, axle configuration, and the amount of movement you want to control all affect the decision. A basic wedge may work for a small single-axle utility trailer, while a tandem-axle travel trailer often benefits from a system that secures two neighboring tires together.

For tandem-axle trailers, the Fastway® ONESTEP™ Chock provides a faster approach. It fits between two tires and expands against both tire faces, allowing you to set and release the chock from a standing position.

What Do Wheel Chocks Do?

A parked trailer can move for several reasons. The ground may slope. Weight may shift while cargo is loaded. The suspension may settle. People moving around inside a camper can also create small forward-and-backward forces at the wheels.

Wheel chocks resist that movement by creating a physical stop against the tire. Depending on the type and placement, they can help:

• Prevent rolling: A properly positioned chock helps stop a wheel from moving forward or backward.
• Improve trailer stability: Reducing movement at the tires can make a parked camper feel more secure while people move around inside.
• Support safer hitching and unhitching: Chocking the trailer before disconnecting reduces the risk of the trailer shifting when the coupler is released.
• Control movement during loading: Chocks add security when equipment, cargo, or recreational vehicles are being moved into or out of a trailer.
• Reduce unnecessary strain on other equipment: Stabilizer jacks and leveling equipment can perform their intended jobs instead of being forced to resist trailer rolling.

Wheel chocks remain important even on a flat campsite. A level surface removes the obvious pull of a steep grade, but it does not stop suspension movement, shifting cargo, or movement inside the trailer. See why in our guide, Do You Need Wheel Chocks on Level Ground?

Wheel Chocks vs. Leveling Blocks and Stabilizer Jacks

Wheel chocks, leveling blocks, and stabilizer jacks are sometimes treated as interchangeable pieces of campsite equipment. They are not. Each solves a different problem.

A complete setup may use all three. Leveling blocks correct the trailer’s position, wheel chocks resist rolling, and stabilizer jacks reduce unwanted movement after the trailer is parked.

The Main Types of Wheel Chocks

Wheel chocks come in several materials and designs. The best option depends on the trailer, tires, surface, and how frequently the chocks will be used.

Rubber Wedge Chocks

Rubber chocks are common for cars, trucks, utility trailers, and RVs. Their weight and textured surfaces can provide useful grip on pavement or concrete.

Best suited for: General-purpose use, individual tires, garages, driveways, and light-to-moderate trailer applications.

Considerations: Rubber chocks can be bulky, may have a noticeable odor when new, and still need to be sized correctly for the tire.

Plastic Wedge Chocks

Plastic chocks are lightweight, inexpensive, and easy to store. Ribbing or a rubberized base may improve traction.

Best suited for: Smaller trailers, recreational use, and situations where low storage weight matters.

Considerations: Thin or lightweight plastic may slide, crack, or deform under demanding conditions. The material and load rating should match the application.

Metal Wheel Chocks

Steel or aluminum chocks offer greater durability and can be designed for heavier use. Some use teeth, cleats, or aggressive contact surfaces to improve grip.

Best suited for: Frequent towing, heavier trailers, commercial use, and owners who prioritize durability.

Considerations: Metal designs may cost and weigh more. The finish should resist corrosion and exposure to outdoor conditions.

Screw-Style Between-Wheel Chocks

These devices fit between neighboring tandem-axle tires and expand outward as the user turns a screw or ratchet mechanism. They can reduce movement between the two tires and help control trailer rocking.

Best suited for: Tandem-axle campers and travel trailers where movement between the tires is a primary concern.

Considerations: Installation typically requires kneeling, positioning, and manually tightening the mechanism.

One-Step Tandem-Axle Chocks

A one-step system also fits between tandem tires, but it is designed to expand and lock through a standing-position action. The Fastway ONESTEP Chock uses steel scissor arms and opposing wedges to secure both neighboring wheels without a separate ratchet or hand-crank process.

How to Choose the Right Wheel Chock Size

A chock that is too small may not provide enough tire contact. A product that is too large may not fit the available space or seat correctly against the tire. Before buying, evaluate the following:

• Tire diameter: Larger tires generally require a taller and more substantial chock.
• Tire width: The chock should provide an appropriate contact surface rather than pressing against only a narrow part of the tread.
• Trailer weight: Use equipment designed and rated for the vehicle or trailer being secured.
• Ground surface: Pavement, gravel, dirt, concrete, and wet surfaces create different traction conditions.
• Axle configuration: A single-axle trailer and a tandem-axle trailer create different stability and fit requirements.
• Space between tandem tires: Between-wheel systems must adjust to the actual gap and contact points between neighboring tires.

Fastway currently offers two ONESTEP adjustment ranges:

• Standard ONESTEP: Adjusts from 16 to 24 inches, measured from wedge tip to wedge tip.
• ONESTEP XL: Adjusts from 16 to 30 inches, measured from wedge tip to wedge tip, for extended or wide-track setups.

Review the current measurements and ordering options on the Fastway ONESTEP Chocks store page before choosing a size.

Single-Axle vs. Tandem-Axle Trailer Chocks

A single-axle trailer has one tire position on each side. Traditional wedge chocks are commonly placed to resist movement at those individual tires.

A tandem-axle trailer has two neighboring tires on each side. That configuration supports heavier loads and can improve highway stability, but it also creates additional suspension movement between the tires while parked.

Traditional wedges can still be used when they are correctly sized and positioned. However, an expanding between-wheel chock can apply opposing pressure to the two neighboring tire faces and reduce the forward-and-backward movement that contributes to trailer rocking.

For a broader comparison of the towing and setup differences, read The Difference in Towing Single-Axle vs. Double-Axle Travel Trailers.

Why the Fastway ONESTEP Is Built for Tandem-Axle Trailers

The Fastway ONESTEP Chock is designed to make tandem-axle setup faster and easier without requiring a separate hand-crank or ratcheting process.

After the chock has been adjusted for the trailer’s tire spacing, it is placed in a collapsed position between the two tires. Pressing down on the center spreads the scissor arms and pushes the steel wedges firmly against both tire faces. When it is time to leave, pulling the coated cable releases the arms so the chock can be removed from a standing position.

Key features include:

• One-step operation: Set the chock with a firm step rather than tightening a manual screw or ratchet.
• Standing-position release: Pull the attached cable to release the chock without kneeling between the tires.
• Two-wheel contact: Opposing wedges press against both neighboring tires on a tandem-axle setup.
• Powder-coated steel arms: The steel construction is designed for repeated outdoor use.
• Standard and XL sizing: Two adjustment ranges support typical and wider tire spacing.

How to Use Wheel Chocks Safely

The exact process depends on the vehicle, chock design, and manufacturer instructions. However, a safe trailer setup generally follows this sequence:

1. Choose the most level practical surface. Avoid parking on an excessive or unreasonable grade.
2. Keep the tow vehicle controlled. Apply the parking brake and follow the vehicle and trailer manufacturers’ parking procedures.
3. Position the chocks before disconnecting. The trailer should be secured before the coupler is released from the hitch ball.
4. Seat the chocks firmly. The contact surfaces should sit securely against the tires without a loose gap.
5. Account for both possible directions of movement. Use the number and placement of chocks required by the product instructions and parking conditions.
6. Confirm stability. Check the trailer before loading, unloading, entering, or extending stabilizer equipment.
7. Remove every chock before towing. Add chock removal to the final walkaround checklist before departure.

Common Wheel-Chock Mistakes

Using a Chock That Is Too Small

A small block may touch the tire without providing the height, width, or contact surface needed for the application. Match the chock to the tire and trailer rather than choosing the smallest option that fits in a storage compartment.

Chocking After Disconnecting

The trailer should be secured before it is separated from the tow vehicle. Waiting until after the coupler is released creates an unnecessary window in which the trailer can shift.

Treating Stabilizer Jacks as Chocks

Stabilizer jacks help control movement in the trailer body. They are not designed to serve as the primary barrier against tires rolling.

Ignoring the Ground Surface

A chock that grips well on dry concrete may behave differently on loose gravel, wet pavement, mud, or soft ground. Surface conditions should be considered during placement.

Forgetting the Departure Check

Driving against a wheel chock can damage the chock, tire, trailer, or surrounding equipment. Make chock removal part of the same final walkaround used to check the coupler, safety chains, breakaway cable, lights, and stabilizer jacks.

Which Wheel Chock Is Best for Your Trailer?

Travel-trailer owners comparing specific products can also review Best Wheel Chocks for Travel Trailers: What RV Owners Recommend.

Choose Wheel Chocks That Match the Way You Tow

Wheel chocks are simple in purpose: they help keep tires from moving while a trailer or vehicle is parked. Choosing the right design requires a closer look at tire dimensions, trailer weight, ground conditions, and whether the trailer uses a single- or tandem-axle configuration.

Traditional wedge chocks remain useful for many vehicles and trailers. For tandem-axle owners who want to control two neighboring tires without kneeling to position or tighten several separate pieces, the Fastway ONESTEP offers a faster, integrated alternative.

Measure your trailer, confirm the proper adjustment range, and explore the Fastway ONESTEP Chock. You can also shop Fastway towing accessories designed to make trailer setup safer, faster, and easier.

Frequently Asked Questions About Wheel Chocks