How to choose the right trailer jack? Learn more about the different types and uses

Trailer Jack is an indispensable and important part of every trailer, RV, and agricultural vehicle, used to support, lift, and stabilize the trailer load. Faced with a wide variety of products, many users will ask: "What size trailer jack do I need?" or "I don't know the difference between a side crank trailer jack and a square tube jack."

This article will systematically explain the types, structural characteristics, and application scenarios of several common trailer jacks to help you quickly choose the right model.

1. Hollow Jack

Hollow jack adopts a hollow design, light weight, and compact structure, which is suitable for temporary support operations on light trailers and limited spaces.

Advantages include strong portability and flexible installation. It is often used for maintenance, outdoor scenes, or in combination with trailer dolly.

2. Black Powder Jacks

The surface of this type of jack is specially powder-coated and has excellent corrosion and oxidation resistance. Black powder jacks are particularly suitable for seaside, wet or muddy environments, and are ideal for long-term outdoor use.

In addition, the black coating also enhances the uniformity and professionalism of the appearance, and is commonly seen on high-end modified trailers.

3. Side Crank Trailer Jack

The design of the side crank handle makes lifting and lowering easier and less likely to hit the front of the trailer. It is currently the most popular structural form.

Side crank trailer jack is suitable for a variety of scenarios, especially for users with limited space or frequent operations. Most designs with bolt holes are easy to install quickly and support bolt-on fixing.

4. Square Tube Jack

Square tube jacks are usually used for heavy trailers with larger load-bearing capacity. The structure is sturdy and stable, and the lifting force is large. The square tube body can improve the anti-twisting ability and is suitable for high-strength scenarios such as agricultural and construction trailers.

Can be combined with the galvanized trailer jack process to enhance durability.

5. Galvanized Trailer Jack

To prevent rust, the surface of galvanized trailer jack is usually hot-dip galvanized. It is suitable for equipment trailers that are often exposed to rain, mud, and salt spray, such as boat trailers or beach trailers.

The galvanized layer is thick and durable, with a longer service life and low maintenance costs.

❓FAQ: What Size Trailer Jack Do I Need?

The right trailer jack size should be determined based on your trailer's GVWR (gross vehicle weight):

Trailer gross weight range (lbs) Recommended jack support

0 – 2,000 1,000 – 1,500 lbs

2,001 – 7,000 2,000 – 5,000 lbs

7,001 – 14,000 5,000 – 7,000 lbs

14,001 – 20,000 12,000 lbs and above

Make sure the jack you choose has a support capacity greater than 15%-25% of the total weight of the trailer cabin, and consider whether there are additional requirements (such as wheels, foldable, detachable handles, etc.).

Summary: How to choose the right trailer jack?

Want to carry light? Choose hollow jack

Focus on appearance and durability? Recommend black powder jacks

Comfortable and smooth operation? Recommend side crank trailer jack

Heavy load? Prefer square tube jack

Often wading outdoors? Prefer galvanized trailer jack

✅ About us | Chenwei Trailer Jacks Manufacturer

As a professional trailer jack manufacturer, Chenwei has more than ten years of manufacturing experience, providing various specifications of manual trailer jacks, wheel jacks, electric lifting devices and accessories, and supports OEM/ODM customization.