WELLUCK RV Leveling Blocks 12-Pack — Heavy-Duty Interlocking Camper Levelers, Non-Slip

These WELLUCK RV Leveling Blocks are a 12-piece, stackable kit that provides customizable, heavy-duty support to level single or dual-wheel trailers and campers quickly and reliably.

When you arrive at uneven ground, a dependable leveling solution prevents wobble, improves appliance performance, and makes life inside your RV more comfortable. The WELLUCK kit includes ten interlocking blocks, two top caps, and two Velcro straps for compact storage. Built from reinforced polymer with a non-slip surface and solid base, the blocks resist cracking, UV damage, and sinking, so they stay useful season after season.

How much height can I achieve and how do I stack the blocks?

Each standard block adds 1.25 inches of lift; stacking changes the rate of gain as you build a pyramid-style support. The top caps provide a finished contact surface and slightly lower height to cradle single or dual wheels.

• Standard block dimensions: 8.5" x 8.5" x 1.25".
• Top cap dimensions: 8.5" x 8.5" x 0.7".
• Recommended maximum stack: 5 blocks (total roughly 4.45" additional height).
• Add blocks incrementally to achieve exact leveling for single, dual, or tandem wheels.

Will these blocks hold up under heavy loads and harsh conditions?

WELLUCK blocks are molded from high-density reinforced polymer designed to bear trailer and RV weight without cracking. They also resist water, UV exposure, and temperature swings so they remain reliable across seasons.

• Reinforced polymer construction for load-bearing strength.
• UV- and water-resistant formulation for outdoor durability.
• Non-slip textured top and solid bottom prevent wheel slip and sinking.
• Engineered to pair with stabilizer, tongue, and hydraulic jacks safely.

How easy are they to use and store during trips?

Setup is intuitive: align the directional arrows, stack to the needed height, level, and drive the wheel onto the assembly. The included Velcro straps keep blocks bundled for neat storage and quick access when you arrive at the next site.

• Directional arrows simplify stacking and orientation.
• Bright color improves visibility so you don’t forget blocks at camp.
• Two Velcro straps secure the set for compact transport.
• Lightweight individual blocks make handling and placement easy.

What vehicles and jacks are these leveling blocks compatible with?

These blocks are versatile for most recreational towing setups — from small travel trailers to larger fifth-wheels — and work with a variety of jack types. They cradle single and dual wheels and support stabilizer and tongue jacks when used as a stable base.

• Compatible with single, dual, and tandem-wheel axles.
• Works under trailer jacks, tongue jacks, stabilizer jacks, and fifth-wheel supports.
• Use as wheel chocks or as a jack base to prevent sinking on soft ground.
• Not recommended to exceed the manufacturer’s stacking guidance (max 5 blocks).

Who is this for: The WELLUCK RV Leveling Blocks 12 Pack is intended for RV owners, weekend campers, and professional haulers who need a portable, durable, and easy-to-store leveling solution. If you value quick setup, reliable load support, and components that resist weathering, this kit simplifies leveling chores for single or multi-axle trailers and complements any jack or stabilizer system.