OULEME Trailer Jack Blocks 15,000 lb RV Leveling Blocks 4-Pack — 8.5" Pad, Interlocking Polypropylene for Jacks & Wheels

OULEME trailer jack blocks are heavy-duty, interlocking leveling pads that stabilize and raise RV jacks, tongue stands, scissor jacks and small wheels with up to 15,000 lbs capacity per block.

When you need a reliable base for campsite leveling or for supporting a travel trailer’s tongue or stabilizers, these polypropylene blocks give a crush-resistant platform that stacks securely. Each rectangular block is designed to fit common 8.5" jack pads while also accommodating round and square feet, tongue posts and small wheels. Built-in grooves and a textured underside help multiple layers lock together to hold position on soft or uneven ground.

How will these blocks make setting up my RV easier?

They simplify leveling by providing a stable, high-capacity foot under jacks and wheels so you can raise and support your trailer without sinking into soft soil or gravel. The uniform dimensions let you stack them to reach the height you need quickly.

• Large 8.5" top pad fits standard jack plates and tongue wheels.
• Interlocking grooves keep stacked blocks aligned and secure.
• High-density polypropylene resists crushing and long-term deformation.
• Stack height options let you fine-tune tilt in small increments.

Which jack types and wheel sizes are compatible with OULEME blocks?

These blocks were made to work with most common RV support points: square and round jack feet, tongue posts, scissor stabilizers and small jack wheels. The top platform accepts up to 9" round feet and standard square pads while side features cradle smaller wheels and posts.

• Supports square jack feet and round feet up to 9" diameter.
• Fits 2" tongue jack posts and small 6x2" tongue wheels.
• Works with scissor stabilizer feet and many aftermarket pads.
• Pairs with other OULEME leveling blocks for customized setups.

How strong are these blocks and can I stack them safely?

Each block is rated to support up to 15,000 pounds, so a single pad provides a substantial support base; stacking increases height while maintaining stability thanks to the anti-slip base and interlock design. The materials and structure are engineered to resist crushing, even under heavy loads.

• Rated capacity: 15,000 lbs per block under intended use conditions.
• Interlocking grooves and textured bottom prevent shifting when stacked.
• Durable polypropylene construction designed for repeated use outdoors.
• Double-stacked height increases from 4.85" to about 8.2" for more clearance.

What are the dimensions and practical uses for different setups?

The block has a wide base for load distribution and a slightly smaller top pad to cradle jack feet and wheels. Use a single block for modest leveling, stack two for additional lift, or combine with other leveling accessories to handle uneven sites.

• Bottom footprint: approximately 10" x 10" for stable ground contact.
• Top pad: approximately 8.5" x 8.5" to accept common jack plates.
• Height: 4.85" per block; about 8.2" when two are stacked together.
• Four-pack gives flexibility for multiple contact points (jacks, stabilizers, tongue).

Who is this for? These OULEME leveling blocks are suited to RV owners, camper and travel trailer enthusiasts, and anyone who needs a dependable, portable support under jacks and small wheels. They’re particularly useful for weekend campers, long-haul travelers and DIYers who park on soft surfaces or uneven pads and want an affordable, durable solution to stabilize and level their rig without permanent modifications.