bullke Square Trailer Jack Blocks 4-Pack — USA-Made Recycled Plastic, Heavy-Duty 10,000 lb Support

BULLKE Square Trailer Jack Blocks are a 4-pack of heavy-duty, USA-made recycled plastic pads designed to provide a stable, stackable base for RV jacks, stabilizers, and trailer feet.

These square jack blocks from BULLKE give your camper, fifth wheel, or trailer a reliable platform when set on firm, level ground. Built in the USA from recycled plastic, each block is shaped for easy carrying, stacking, and placement under tongue jacks, post jacks, foot jacks, scissor jacks, and stabilizer jacks. The set is rated to support heavy loads when used alone and supports significantly higher loads when paired with BULLKE Flex Pads.

How do these jack blocks improve stability and leveling?

The blocks create a larger, flatter footprint for jack feet so pressure spreads across more surface area, reducing sinking and tilting on suitable ground. Their square profile resists rolling and aligns neatly beneath jack heads for consistent support.

• Square shape prevents rolling and eases alignment under jack feet.
• Stackable design adds height for finer leveling adjustments.
• Creates a broader base to reduce pressure on soil and pavement.

What weight can these blocks safely hold and when should I use Flex Pads?

When properly placed on firm, level ground with the jack foot centered, a single BULLKE block is rated to support loads up to 10,000 lbs without added accessories. Pairing these blocks with BULLKE Flex Pads raises the combined rated support up to 18,000 lbs, offering extra distribution and shock absorption for heavier rigs.

• 10,000 lbs rating per installation on firm, level ground without Flex Pads.
• Up to 18,000 lbs combined rating when used with BULLKE Flex Pads.
• Always center the jack foot on the block and avoid unstable surfaces.

Where and how should I use these blocks to get the best performance?

For reliable performance, place the blocks only on firm, level ground. Do not use them over gravel, loose stones, raised rocks, or uneven ground; clear debris before placement and make sure the jack foot sits centered on the block to avoid uneven loading.

• Use exclusively on firm, level surfaces—no loose gravel or rocks.
• Clear the area of debris and center the jack foot on the block.
• Stack blocks as needed for height, ensuring stable alignment each time.

What materials and features make these blocks durable and easy to use?

Manufactured in the USA from heavy-duty recycled plastic, these blocks resist weathering and repeated outdoor use. The cube-like form is lightweight for carrying yet stiff under load, and their uniform shape simplifies storage in compartments or under seats.

• Made in the USA from durable recycled plastic for long life outdoors.
• Lightweight, stackable design for convenient transport and storage.
• Simple geometry that fits most jack feet and stabilizer pads.

Who is this for: BULLKE Square Trailer Jack Blocks are ideal for RV owners, camper and trailer enthusiasts, weekend campers, and professionals who need dependable, reusable jack pads for leveling and stabilizing on proper surfaces. They suit lighter rigs on their own and heavier setups when used together with BULLKE Flex Pads, providing a practical, space-efficient solution for safe jack placement during campsite setup and vehicle maintenance.