bullke Square Trailer Jack Blocks 4-Pack — Heavy-Duty Recycled Plastic RV Leveling & Stabilizing Pads (Made in USA)

BULLKE Square Trailer Jack Blocks 4-Pack are heavy-duty recycled-plastic pads that give your RV, camper, trailer or jack a stable, level base on firm ground.

These compact, stackable jack blocks are made in the USA from durable recycled plastic and designed to support and stabilize tongue jacks, post jacks, foot jacks, scissor jacks and 5th-wheel setups when placed on firm, level surfaces. Sold as a set of four, they are easy to carry, position and store with other RV gear, and they help spread load under the jack foot to reduce sinking on soft or slightly uneven ground when used correctly.

How much weight can each BULLKE jack block handle?

Each block contributes to an overall system capacity that varies by setup: paired alone they support substantial loads, and combined with BULLKE Flex Pads the rated capacity increases. Ratings assume proper placement on firm, level ground with the jack foot centered on the block.

• Up to 10,000 lb system rating without Flex Pads (proper installation required).
• Up to 18,000 lb system rating when used together with BULLKE Flex Pads.
• Capacity depends on correct centering of the jack foot and level base.

Where should I use these blocks and where should I avoid them?

These blocks are intended for use on solid, level surfaces only. They are not engineered to compensate for very soft, loose or highly irregular terrain and must be placed on a cleared, firm area to function safely.

• Use on concrete, asphalt, hard-packed dirt or firm campsite pads.
• Avoid placing over loose gravel, large rocks, raised stones or uneven ground.
• Always clear debris and check block seating before applying load.

How do I stack, carry and store the BULLKE jack blocks?

The square shape enables simple stacking and compact storage. They are lightweight for handling but stiff enough for repeated outdoor use, so you can keep them in storage bins, cargo compartments or with other leveling tools.

• Stackable square profile for secure piling and minimal footprint.
• Easy to lift and set under jack feet; four-block set covers typical needs.
• Store in RV bays, trucks or garages without taking much space.

What are these blocks made of and why does that matter?

The blocks are molded from recycled heavy-duty plastic in the USA to combine durability with environmental reuse. The material resists outdoor elements and repeated compressive loads when used on appropriate surfaces.

• Manufactured in the United States from recycled plastic for strength and longevity.
• Engineered to withstand outdoor exposure and frequent setup cycles.
• Designed to reduce jack foot sinkage and improve stability on firm ground.

Who is this for: The BULLKE Square Trailer Jack Blocks 4-Pack is aimed at RV owners, van lifers, tow-vehicle operators, and trailer installers who want a portable, dependable base for tongue jacks, stabilizer jacks, post jacks and scissor jacks. If you regularly set up at campgrounds, seasonal sites, or anywhere with hard-packed or paved pads and need a reusable, stackable leveling solution made in the USA, this set is built to fit that use. Avoid relying on them as a remedy for very soft, loose or highly uneven ground — they perform best when placed on firm, level surfaces and used as part of a proper jacking procedure.