Trailer Jack Block New Version RV Camper Blocks - Fits Tongue Jacks

Our review of the Trailer Jack Block New Version finds it best suited for RV and trailer owners who want a simple, heavy duty solution to reduce movement and sway while parked. The single biggest reason to buy is its all-in-one compatibility: the recessed 2-1/2' post hole and top profile accept nearly any tongue jack foot, 9 round 5th wheel hydraulic jack foot, scissor stabilizer or wheel jack, creating a stable base rated to 15,000 lbs per block. It is a practical upgrade for campers who need rugged, repeatable support without bulky stands or extra adapters.

Key Features

• All-in-one compatibility: Designed to support tongue jack feet, wheel jacks, 9 round 5th wheel hydraulic jack feet and scissor stabilizers so one block covers multiple uses.
• High load rating: Each block is rated to 15,000 lbs, giving confidence under heavy loads and reducing stress on trailer jacks and frames.
• Upgraded internal structure: The revised internal design increases load-bearing capacity by about 50% compared with earlier all-in-one blocks for improved durability.
• Heavy duty polymer construction: Made from a high-performance polymer that resists dirt, grime and oil for years of rugged outdoor use.
• Stackable height options: A single block measures about 6.3' tall (12' when double-stacked) to provide added clearance or leveling when needed.
• Secure post recess: The recessed post hole is 2-1/2' diameter and the top also accommodates a 9 round 5th wheel jack foot for a snug, anti-slip fit.

Who It's For

This Trailer Jack Block is aimed at RV and trailer owners who want a durable, straightforward way to eliminate sway and movement after setup. It is especially useful for travel trailer and 5th wheel owners who frequently hitch and unhitch or who use hydraulic or scissor stabilizers and need a reliable contact surface under the jack foot.

Those who need micro-adjustable leveling or integrated screw jacks should look elsewhere; this product is a robust pad and stabilizer base rather than an adjustable leveling system. Also, if you require multiple specialized adapter sizes beyond the common tongue and 9 round 5th wheel feet, additional accessories may still be necessary.

Pros & Cons

Pros

• Versatile fit for many jack feet and stabilizers, reducing the need for separate blocks or plates.
• Heavy duty polymer and upgraded internal structure increase durability for long-term use.
• High 15,000 lb rating per block gives reassurance under heavy trailers and 5th wheels.
• Stackable design allows added height without extra tools or hardware.

Cons

• Not a micro-leveling device; it provides stable support but does not replace dedicated leveling jacks for fine adjustments.
• Only one recessed hole diameter is specified (2-1/2'), so unusual jack posts may need an adapter.

Specifications

Brand	Rophor
Load rating	15,000 lbs per block
Material	High-performance polymer
Single block height	About 6.3 in
Double-stacked height	About 12 in
Base footprint	11.2 in x 8.9 in
Recessed post hole	2-1/2 in diameter

Our Verdict

The Trailer Jack Block New Version is a practical, durable choice for RV and trailer owners who need a reliable support pad that fits multiple jack types. With its upgraded internal structure, stackable height and a 15,000 lb rating, it delivers clear value for campers looking to reduce sway and protect jack hardware without complicated setups.

Frequently Asked Questions

Will this fit my tongue jack foot?
Yes, the block is designed to support nearly any tongue jack foot and wheel jack, and the top also accommodates a 9 round 5th wheel hydraulic jack foot.

How tall is the block and can I stack them?
A single block is about 6.3 in tall and blocks can be double-stacked to reach about 12 in for extra height.

What is the load capacity?
Each block is rated to 15,000 lbs and features an upgraded internal structure for increased load-bearing strength.