OULEME RV Leveling Blocks 12-Pack — Interlocking Stackable Blocks, Reinforced Polypropylene with Carry Bag

These are OULEME's 12 interlocking RV leveling blocks — a stackable, durable polypropylene system that gives you customizable height to level and stabilize campers, trailers and jack stands.

When you park on uneven ground, a reliable set of leveling blocks speeds setup and protects jacks and stabilizers. The OULEME 12-pack includes ten interlocking base blocks and two thinner top pieces so you can build precise heights. Each full block is roughly 8.5 × 8.5 inches with a rugged, anti-UV construction for long life outdoors.

How do these blocks make leveling an RV easier?

Stacking interlocking pieces lets you fine-tune the height under tires, stabilizer pads or jack feet without digging or makeshift shims. The wide footprint spreads weight and prevents sinking, while top blocks provide a slightly tapered contact surface.

• 12-piece kit: 10 base blocks + 2 thin top pads for incremental adjustments
• Each base block measures 8.5" × 8.5" × 1.5" for stable support
• Interlocking design holds stacked height securely under load
• Top blocks (8.5" × 8.5" × 0.7") protect jack feet and improve grip

Are these blocks strong enough for heavy trailers and jacks?

The blocks are molded from reinforced polypropylene with added UV-stabilizers, giving them high density and resistance to cracking or deformation under concentrated load. They’re intended for use under tires, trailer jacks and stabilizers — not as a permanent structural replacement for professional jack stands.

• Reinforced polypropylene resists compression and weathering
• Thickened structure reduces flex under weight
• Wide base reduces ground pressure and sinking on soft surfaces
• Suitable for repeated outdoor use thanks to anti-UV additives

How do I choose and build the right stack for my site?

Start by eyeballing the slope, then add or remove full blocks to raise the low side until the camper is near level. Use the thinner top blocks to fine-tune height in smaller increments or to protect jack pads from wear. Always test stability before fully exiting the vehicle.

• Stack full blocks for larger height differences (1.5" per block)
• Add 0.7" top pads for small adjustments or softer contact surfaces
• Interlock blocks to form a single secure column beneath tires or jacks
• Place on compacted ground or a board if surface is very soft

What comes in the kit and how do I carry it?

The set ships with ten interlocking leveling blocks and two top pads, plus a soft carrying bag to keep parts together and clean. The bag makes it simple to stow the kit in a storage bay or closet and pull it out at each stop without loose pieces rolling around.

• Pack contains 12 pieces for flexible stacking options
• Compact carrying bag for neat storage and transport
• Blocks are lightweight yet dense for easier handling
• Fits in most RV compartments and trunk spaces

Who is this for? RV and camper owners, weekend trailers, and van-life travelers who need a reliable, reusable way to level vehicles on gravel, dirt or uneven campsites. Also useful for anyone needing portable support pads for trailer jacks, stabilizers, or temporary support tasks where a stable, weather-resistant pad is beneficial.