EKON OX BLOX Trailer Jack Block 10,000 lb Capacity - Stackable, UV-Resistant Made in USA

OX BLOX is a heavy-duty trailer jack block that provides rock-solid support for jacks and stabilizers with a 10,000 lb capacity per block.

Built for owners of travel trailers, fifth-wheels, boat trailers, and work trailers, these stackable jack blocks eliminate wobble and sinking on soft or uneven ground. Engineered and molded in the USA from 100% recycled plastic, the design resists UV and temperature damage so the blocks remain reliable through seasons of use. Each block includes easy-grip handles and weighs just over 8 pounds, making them simple to carry and store in a truck bed or camper compartment.

How do OX BLOX keep jacks stable on gravel, grass, or dirt?

The patented geometry spreads load and resists lateral movement so jacks don’t tilt or sink. The wide footprint and molded contact surfaces give a secure interface with both the jack foot and ground, cutting down wobble at campsites or job sites.

• Patented design (US 11,673,440 B2) engineered to reduce sway.
• Large base area prevents sinking on soft soils and gravel.
• Textured top surface improves grip with round or square jack feet.

Can I stack these blocks to gain extra lift for leveling?

Yes — OX BLOX are stackable for added height and maintain their rated strength when combined. Whether you need a few inches or several, stacking gives controlled elevation while keeping the assembly rated to handle heavy tongue loads.

• Each block supports up to 10,000 pounds, including stacked configurations.
• Interlocking geometry aligns blocks securely when stacked.
• Use as tongue jack blocks, camper leveling pads, or stabilizer bases.

What makes these blocks durable for long-term outdoor use?

Manufactured by compression molding from 100% recycled plastic in the United States, OX BLOX resist cracking, UV fade, and temperature extremes. The material selection and molding process deliver a tough, weatherproof product meant to last through repeated seasons of storage and use.

• Made in USA from recycled plastic for strength and sustainability.
• UV and temperature resistant to avoid brittleness and degradation.
• Compression-molded construction minimizes weak points and wear.

How portable and practical are these for everyday RV travel?

At just over 8 pounds apiece and with built-in grab handles, OX BLOX are easy to move around your rig or lift into a truck bed. Their compact footprint stores conveniently and replaces multiple makeshift pads or boards, reducing clutter and setup time at campsites.

• Integrated handles allow one-person carrying and placement.
• Compact size fits storage bins, under seats, or in a truck bed.
• Versatile: works with tongue jacks, post jacks, foot jacks and scissor jacks.

Who is this for? OX BLOX is aimed at RV owners, boat haulers, equine trailer users, contractors with mobile trailers, and anyone who needs a durable, reusable pad for stabilizing or lifting trailer jacks. If you want a long-lasting, American-made solution that simplifies leveling and prevents sinking or wobble on uneven surfaces, these blocks are designed to deliver dependable support season after season.