OULEME Trailer Jack Leveling Blocks 2-Pack — 15,000 lb Capacity, 8.5" Pad Fit, Interlocking Anti-Slip

OULEME Trailer Jack Block is a heavy-duty, interlocking 2-pack of leveling blocks that support up to 15,000 lbs each and fit square, round and 8.5" jack pads for stable RV and trailer leveling.

Whether you tow a camper, haul a fifth-wheel, or park a travel trailer, stable jack support prevents sinking and uneven weight distribution on soft ground. These OULEME blocks are molded from high-density polypropylene with an anti-slip base and interlocking grooves so you can stack them confidently. They’re sized to accept common jack feet, tongue posts, scissor stabilizers and small wheels, and they double-stack to increase height without losing stability.

How do these blocks keep my RV jack from sinking on soft ground?

The wide footprint and sturdy polypropylene construction spread the load across a larger surface area to reduce ground pressure and prevent jacks from digging in. Each block is rated to carry up to 15,000 pounds, and the anti-slip base helps the block stay planted under load.

• 10" x 10" bottom footprint distributes weight over soft soil or gravel
• High-density, crush-resistant polypropylene resists deformation
• Anti-slip bottom minimizes lateral movement under load
• 15,000 lb capacity per block for high-capacity jacks

Which jack types and wheel sizes fit these leveling blocks?

OULEME blocks accept a wide range of common jack feet and trailer hardware: square jack feet, round pad feet up to 9", 2" tongue jack posts, 6x2" tongue jack wheels and scissor stabilizer pads. The top recess measures 8.5" to match many factory jack pads and tongue stands.

• Top pad dimension: 8.5" x 8.5" to fit standard jack pads
• Accommodates round jack feet up to 9" diameter
• Designed for 2" tongue jack posts and 6x2" wheels
• Works with scissor stabilizers and small leveling accessories

Can I stack these blocks safely to get more height?

Yes—OULEME blocks feature interlocking grooves and a secure anti-slip base for stable multi-layer stacking. Two blocks stack to about 8.2" high, and the interlock design prevents slippage while under heavy load so you can customize height without sacrificing safety.

• Interlocking grooves lock blocks together for secure stacking
• Stable, anti-slip base reduces shifting on uneven terrain
• Double-stack height: approximately 8.2" for added clearance
• Compatible with other OULEME leveling products for modular setups

How durable are these blocks for long-term outdoor use?

Constructed from high-density polypropylene, these blocks resist crushing, cracking and deformation in repeated use and harsh conditions. They tolerate typical campsite exposure—dirt, moisture and temperature changes—while maintaining structural integrity for seasons of travel.

• Crush-resistant material preserves shape under heavy loads
• Weather-tolerant polypropylene resists rot and corrosion
• Easy to clean—hose off mud and grit after use
• Designed for repeated stacking and unstacking without wear

Who is this for? These OULEME Trailer Jack Blocks are intended for RV owners, trailer haulers and weekend campers who need reliable jack support on grass, soft dirt, gravel or uneven surfaces. They suit owners of travel trailers, fifth-wheels, toy haulers, and pop-ups who use tongue jacks, scissor stabilizers or square/round jack feet, and for anyone who wants a compact, stackable solution to prevent sinking and improve campsite stability. The two-pack format offers immediate backup or paired use at front and rear jacks, while compatibility with other OULEME leveling components lets you build the exact height you need for safe, level parking.