Dnigh Trailer Jack Blocks, 4Pack 4.7" Heavy-Duty RV Stabilizer Pads — Stackable, 35,000 lb Capacity

Dnigh 4Pack 4.7" Heavy Duty Trailer Jack Blocks are high-density rubber support pads engineered to stabilize and protect RV jacks under loads up to 35,000 lbs.

When leveling or stabilizing an RV, trailer jack blocks provide a stable, non-slip surface between the jack and the ground. These Dnigh blocks are molded from a reinforced, high-density compound that resists compression, oil and dirt while distributing heavy loads across a wider footprint. The set of four stackable pads offers a practical upgrade for scissor jacks, tongue jacks and trailer stabilizers without any installation steps.

How do these blocks improve RV stability?

By increasing the surface area under each jack foot and using a material that resists deformation, the blocks reduce rocking and sinking on soft or uneven ground. The reinforced base pattern grips surfaces to prevent shifting during movement or weight changes.

• Wide footprint lowers ground pressure and prevents sinking
• Non-slip base pattern reduces lateral movement
• High-density construction keeps shape under repeated heavy loads

Will these work with different types of jacks and stabilizers?

Yes — these jack blocks are designed to be universally compatible with common RV support equipment. Their shape and flat top accept scissor jacks, tongue jacks, leveling pads and many aftermarket stabilizers, so you can use one product across multiple needs.

• Fits scissor, tongue and stabilizer jack feet
• Stackable for additional height when needed (do not stack more than two)
• Useful as leveling pads, step stools, or temporary seats

How much weight can each block handle and will they crack?

These blocks are rated to support very large loads thanks to their high-density rubber/HDPE compound and reinforced base. The material resists cracking or permanent deformation under heavy loads, giving you reliable performance over time.

• Engineered to withstand loads consistent with a 35,000 lb rating
• Reinforced base prevents edge compression and cracking
• Designed to resist oil and dirt for longer life on the road

How do I use and maintain the Dnigh jack blocks?

There is no assembly required — place a block under each jack foot where needed. For best results on larger trailers, position two blocks at the front and two at the rear; use one block per stabilizer otherwise. Wipe clean with mild soap and water as needed.

• No installation: immediate use straight from the pack
• Recommend one block per stabilizer or two front/two rear setup
• Easy maintenance: clean debris with soap and water

Who is this for? The Dnigh 4Pack 4.7" Heavy Duty Trailer Jack Blocks are ideal for RV owners, tow operators and weekend campers who need a compact, durable solution to level and stabilize trailers on variable ground. If you want to protect jack hardware, reduce sway and avoid extending jacks excessively, these blocks offer a low-cost, low-effort upgrade. Backed by Dnigh customer support, they suit anyone wanting dependable, reusable support pads for travel, storage or campsite setup.