OULEME Trailer Jack Blocks 2-Pack — 15,000 lb RV Leveling Blocks for 8.5" Pad, Interlocking Anti-Slip Support

OULEME Trailer Jack Block is a heavy-duty, interlocking 2-pack of leveling supports rated to 15,000 lbs each, designed to stabilize and level RVs, travel trailers, 5th wheels, tongue jacks, and scissor stabilizers.

When you need a reliable base for your trailer jack or tongue wheel, these molded polypropylene blocks provide a stable platform that resists crushing and deformation. Sized to accept 8.5" square or round jack pads and compatible with common tongue jack posts and wheels, the blocks stack securely with anti-slip grooves so you can customize height and maintain a safe stance on uneven ground.

How do these blocks make setting up my trailer easier?

The OULEME blocks give a firm, predictable contact point for jacks and stabilizers so you can raise and level the trailer without the pad digging into soft soil. Their interlocking design keeps multiple layers aligned, simplifying incremental height adjustments and preventing slips while you crank the jack.

• Immediate stable base for jack feet, tongue wheels, and scissor stabilizers
• Interlocking grooves allow safe multi-block stacking
• Anti-slip base reduces movement on gravel, grass, or pavement

Will they support heavy loads and last through repeated use?

Each unit is molded from high-density polypropylene engineered to withstand heavy compressive forces without cracking or compressing under load. Rated to support up to 15,000 pounds apiece, these blocks are built for frequent use and harsh outdoor conditions while resisting deformation that can compromise leveling.

• 15,000 lb capacity per block for high-load stability
• Crush-proof construction resists long-term compression
• Durable material stands up to weather and repeated stacking

Are the dimensions and fit compatible with my jack and tongue wheel?

OULEME designed the top surface to accept an 8.5" pad and to accommodate common round or square jack feet and tongue wheel assemblies. The block’s footprint and height give a balanced platform while two stacked units offer additional height without sacrificing stability.

• Top dimensions: 8.5" x 8.5" — fits most jack pads and wheels
• Bottom footprint: 10" x 10" for improved ground contact
• Single height 4.85"; double-stacked height 8.2" for variable leveling

How do I use and stack these safely during setup?

Place the block on firm ground and align the interlocking grooves before raising the jack onto the top surface. If more height is required, stack a second block with the grooves engaged and ensure the base rests evenly; always follow standard jack safety practices and use wheel chocks where needed.

• Set on a level, compact surface before applying load
• Engage interlocking grooves when stacking for secure alignment
• Combine with wheel chocks and stabilizers for full safety protocol

Who is this for?

These OULEME trailer jack blocks are made for RV owners, campers, tow vehicle operators, and anyone who needs a reliable, portable platform for tongue jacks, scissor stabilizers, and trailer jack feet. Whether you’re boondocking on soft ground, parking at a gravel campsite, or leveling a travel trailer for long-term setup, the two-pack gives flexible height options and heavy-duty support to simplify setup and protect your jack hardware.