6in RV Trailer Jack Block with Bag - Camper Stabilizer Block

In this review of the 6in RV Trailer Jack Block with Bag the bottom line is simple: this is a practical, heavy duty stabilizer for RV owners who need an easy-to-use, stackable support that eliminates most sway when parked. The reviewer finds it especially useful for travel trailers, fifth wheels and campers with round or square tongue jacks because of its universal fit and strong construction. If you want straightforward leveling and more secure parking without bulky metal gear, this block delivers reliable performance and portability.

Key Features

• All-in-one fit: Designed to accept nearly any tongue jack foot, wheel jack or scissor stabilizer so you rarely need multiple pads.
• High load capacity: Rated to support large gross vehicle weights per block, giving confidence under heavy trailers and campers.
• Stackable height: The modular, stackable design lets you fine tune leveling on uneven ground without tools.
• Durable polymer: Made from a high-performance polymer with anti-UV additives to resist dirt, oil and weathering over time.
• Portable storage: Includes a storage bag and a carry hole with rope for convenient transport and compact storage in cramped compartments.

Who It's For

This block is best for RV and trailer owners who want a lightweight, nonmetal support that works with a wide variety of jack feet and stabilizers. It suits owners of travel trailers, 5th wheels and campers who need to reduce sway and improve campsite stability without carrying heavy steel plates.

It is less relevant for users who prefer permanently mounted leveling systems or those who need extremely fine millimeter adjustments; the block offers discrete stacking increments and is focused on convenience and rugged simplicity rather than precision engineering.

Pros & Cons

Pros

• Universal compatibility with tongue jacks, hydraulic 5th wheel feet and scissor stabilizers.
• Strong build and anti-UV polymer resist grime and outdoor exposure.
• Stackable design provides adjustable height and easier leveling on uneven ground.
• Includes a storage bag and carry rope for compact transport.

Cons

• Height adjustments are by stacking rather than continuous, so exact small adjustments require trial stacking.
• Single piece design means you must carry multiple blocks for larger elevation changes.

Specifications

Our Verdict

The 6in RV Trailer Jack Block with Bag is a sensible, value-oriented stabilizer for campers and trailers that need wider, reliable footing without heavy metal gear. Its universal fit, durable polymer construction and stackable height make it a practical choice for most RV owners who want to cut sway and improve campsite stability while keeping storage simple.

Frequently Asked Questions

Will this work with round and square jack feet?
Yes, the block is designed to support nearly any tongue jack foot including round and square shapes.

Can I stack blocks for more height?
Yes, the stackable design allows multiple blocks to be used together to achieve additional height.

Is the material weather resistant?
Yes, the polymer includes anti-UV additives to resist dirt, grime and aging from outdoor exposure.