bullke Square Trailer Jack Blocks 4-Pack — USA-Made Recycled Plastic, Stackable RV Leveling & Stabilizing Pads

BULLKE Square Trailer Jack Blocks are a 4-pack of heavy-duty, USA-made recycled-plastic pads that give your RV, camper, or trailer a stable, load-rated base for jack feet and stabilizer jacks.

When you need a reliable foundation for leveling or stabilizing a towable, these square jack blocks deliver a compact, stackable platform made from durable recycled plastic. Designed for use on firm, level ground, the blocks provide a more secure surface than soft soil or uneven rocks, helping distribute jack loads and protect jack feet. They’re lightweight for carrying yet robust enough to support rated loads when used as directed.

How much weight can each jack block support?

Rated capacities depend on configuration and accessories: used alone on firm, level ground, the BULLKE blocks support loads up to 10,000 pounds; when combined with BULLKE Flex Pads and properly centered on firm surfaces, the system is rated up to 18,000 pounds. Always position the jack foot in the center of the block and avoid uneven or loose ground for accurate performance.

• Single block use: up to 10,000 lbs on a flat, firm surface.
• With BULLKE Flex Pads: combined system rating up to 18,000 lbs.
• Must be centered under the jack foot and installed on solid, level ground.

Will these blocks work with my RV, 5th wheel, or scissor jack?

Yes — the square shape and flat surface make them compatible with many jack types including tongue jacks, post jacks, foot jacks, stabilizer jacks, scissor jacks, and 5th wheel jacks. Their stackable design lets you build height in a controlled manner so you can level or stabilize varied setups. Confirm ground conditions and load requirements before use.

• Fits tongue and post jacks, scissor and stabilizer jacks, and many foot jacks.
• Stackable squares for incremental height adjustments.
• Best used with BULLKE Flex Pads for high-capacity needs.

How should I use these blocks safely and store them when not in use?

Place blocks only on firm, level, debris-free ground — do not use them over gravel, loose rock, raised stones, or heavily uneven terrain. Center the jack foot on the block, and if stacking, ensure each block sits flush and stable before applying load. After use, rinse off dirt, let dry, and store them together in your RV gear area; their compact square form makes them easy to carry and stow.

• Clear the surface of rocks and loose material first.
• Center the jack foot and apply load gradually while checking stability.
• Rinse and dry blocks before compact storage to prolong life.

What are these blocks made of and where are they manufactured?

Each jack block is molded from heavy-duty recycled plastic engineered for outdoor use and repeated service in RV and trailer settings. They are proudly made in the USA, offering toughness against weather exposure while supporting responsible material reuse. The material resists cracking under load when used correctly and is easy to clean for long-term use.

• Constructed from robust recycled plastic for durability.
• Manufactured in the United States with quality controls.
• Designed to withstand outdoor conditions with routine care.

Who is this for? BULLKE Square Trailer Jack Blocks 4-Pack is aimed at RV owners, camper and trailer enthusiasts, towable owners, and service technicians who need a portable, dependable base for jack feet and stabilizers. If you set up your trailer regularly, require safe load distribution on firm surfaces, or want compact, stackable pads made in the USA from recycled plastic, these blocks offer a practical solution. Avoid using them on loose, uneven, or rocky ground and pair with BULLKE Flex Pads when your setup requires higher capacity ratings.