VEVOR RV Trailer Jack Blocks — 4-Pack 6000 lb Polypropylene Stabilizer Blocks, Stackable 8" Height, UV-Resistant

VEVOR Trailer Jack Blocks are durable polypropylene leveling and stabilizer blocks that support up to 6,000 lbs per jack, providing a stable, stackable base for RV jacks, posts, and feet.

When you park on uneven ground, a secure, level foundation keeps your camper comfortable and prevents damage. These VEVOR blocks come as a 4-piece set made from T30 polypropylene and are sized to fit most tongue jacks, 5th wheels, and support posts. Designed for outdoor use, they resist UV, water, oil, and heat while offering a large footprint and integrated drainage to protect metal feet and reduce sinking on soft surfaces.

How do these blocks make leveling faster at the campsite?

VEVOR jack blocks are shaped and sized for quick placement beneath jack pads so you can achieve the desired height without tools. Their stackable design lets you fine-tune level adjustments in increments, reducing the need for time-consuming shims or improvised supports.

• Stackable 8-inch support height for clear incremental adjustments
• Large 9.65" square platform spreads load to prevent sinking
• Lightweight polypropylene allows easy handling and repositioning
• Includes simple instructions for fast campsite setup

Will these blocks protect my jack and trailer on soft or uneven ground?

Yes. The increased footprint lowers pressure on the ground, which helps prevent jacks from digging in on dirt, gravel, or grass. The durable plastic resists cracking while the drainage design helps avoid water pooling that can accelerate corrosion on metal jack feet.

• 6000 lb capacity per block supports common RV jack loads
• Integrated drainage reduces standing water under the jack foot
• UV- and chemical-resistant material stands up to outdoor conditions
• Non-porous surface prevents soil saturation and mud adhesion

Are these blocks compatible with different types of RV jacks and supports?

VEVOR designed these stabilizer blocks to fit a wide range of jacks, posts, and foot plates used on travel trailers, campers, and motorhomes. The square platform offers a stable base for circular or square feet and is roomy enough for uneven contact points.

• Fits tongue jacks, 5th-wheel landing gear, and receiver-style stabilizers
• Large platform supports round or square jack pads securely
• Stackable configuration adapts to varying height needs
• Works as a general-purpose support for leveling and stabilization

How durable are these blocks for seasonal outdoor use?

Manufactured from reinforced polypropylene T30, these blocks resist UV degradation, oil, tar, and varying temperatures so they remain functional season after season. The material choice balances strength with light weight so blocks are both long-lasting and easy to carry.

• Polypropylene T30 resists cracking, fading, and chemical exposure
• Drainage feature prevents trapped moisture and rust formation
• Rated for heavy loads up to 6000 lbs per block under normal use
• Compact dimensions for storage in standard RV compartments

Who is this for? The VEVOR Trailer Jack Block 4-pack is ideal for RV owners, weekend campers, and anyone who needs a reliable, portable base for jacks and stabilizers. If you frequently camp on uneven terrain, tow a travel trailer or 5th wheel, or want a simple, durable solution to keep your trailer stable and protected, these blocks are a practical addition to your travel gear.