OX BLOX Heavy Duty Trailer Jack Block - Super Strong Support

In this review of the OX BLOX Heavy Duty Trailer Jack Block, the bottom line is simple: it is for RV and trailer owners who want a lightweight, reliable alternative to stacked wood for jack support. The reviewer found the block's most compelling feature to be its combination of strength and convenience - a patented design made from 100% recycled plastic that delivers stable support for tongue jacks, horse trailers, boat trailers and utility trailers while being far easier to handle than heavy wood. For anyone who values durability, ease of use and American manufacturing, this is a practical upgrade.

Key Features

• Heavy duty construction: The block is molded from 100% recycled plastic to provide strong, dependable support that replaces stacked wood pieces.
• Versatile fit: It works with a wide range of jacks including RV tongue jacks, lift legs, trolley wheels and trailer jacks for boats and horse trailers.
• Easy leveling: The block lets you raise and adjust jack height quickly so setting up a camper or trailer takes less effort.
• Made in USA: Manufactured in the United States, the blocks are produced to consistent quality and tolerances.
• Patented design: Engineered in Utah and covered by a U.S. patent, the shape and structure prioritize stability under load.

Who It's For

The OX BLOX jack block is best for RV owners, weekend campers, horse trailer operators and boat trailer users who want a reusable, lightweight support that eliminates rotten or uneven wood pieces. It suits people who use electric tongue jacks or manual jacks and want a reliable base that speeds setup and improves stability.

Those who need extremely large custom cribbing stacks for unusual off-road rigs or who prefer metal support plates for permanent installations should consider other stabilization accessories. For routine campsite leveling and trailer support, this is a convenient everyday solution.

Pros & Cons

Pros

• Durable 100% recycled plastic construction provides solid support without the weight of wood.
• Works with multiple jack types, making it a flexible tool across trailers and campers.
• Made in the USA with a patented design aimed at stability and longevity.

Cons

• Not intended as a permanent foundation substitute for long-term storage where metal or concrete supports might be preferred.

Specifications

Our Verdict

The OX BLOX Heavy Duty Trailer Jack Block is a smart buy for most trailer and RV owners who want a durable, lightweight jack base that simplifies leveling and improves stability. Built from recycled plastic with a patented design and American manufacture, it replaces awkward wood stacks and offers good value for routine campsite and trailer use.

Frequently Asked Questions

Will this block fit my RV tongue jack?
Yes; the block is designed to work with a variety of jacks including RV tongue jacks, lift legs and trolley wheels.

How much weight can the block support?
Each block is rated to support up to 10,000 lbs when used as intended under a trailer jack.

Is it durable in outdoor conditions?
The recycled plastic construction resists rot and weathering, making it more durable than traditional wood blocks.