10 Best Adjustable Jack Posts 2025 in the United States

The ASTAMOTOR adjustable house floor jacks are designed to offer reliable support for various construction and renovation needs. With a notable load capacity of 8 tons (or 4400 lbs per jack), these posts are well-suited for leveling floors in areas such as basements, crawlspaces, and even for supporting cabinets and walls. Their adjustable height range of 19.49" to 34.45" makes them versatile enough for different applications, accommodating various structural requirements.

One of the standout features is the quality of materials used; constructed from galvanized steel, these jacks resist corrosion, ensuring durability and strength over time. The double carriage locks included enhance security during use, which is a significant advantage for safety-conscious users. Additionally, the installation process is straightforward, allowing users to set them up quickly with the provided screws and nuts.

There are a few drawbacks to consider. While the jacks can support substantial weight, some may find the 4.92" base plate size slightly limiting in terms of stability on uneven surfaces. The jacks weigh nearly 27 pounds each, which could be cumbersome for some, particularly in scenarios where frequent adjustments are required. Furthermore, while the warranty offers peace of mind, potential buyers might seek more extended coverage, especially for heavy-duty applications.

For anyone involved in home renovations or construction work, particularly in need of temporary support for sagging floors or structural leveling, these adjustable jacks from ASTAMOTOR present a solid option. Their high load capacity and easy adjustability make them particularly useful for DIY enthusiasts and professional contractors alike, but users should keep the base size and weight in mind when making a purchase decision.

The ELLIS Adjustable Heavy Duty Steel Shores are designed to provide robust support for both temporary and permanent applications, making them suitable for various construction projects. With a remarkable load capacity of 34,000 lbs and an adjustable height range of 55" to 80", these shores can handle substantial weight, which is a significant advantage for heavy-duty tasks. The materials used, primarily high-quality steel, enhance durability and longevity, ensuring they can withstand demanding conditions without compromising safety.

One of the standout features is the ease of adjustment. While the adjustment rod is sold separately, once you have it, the process to set the shore is straightforward. You simply place it, adjust to the desired height, and securely lock it in place. This user-friendly design appeals to both seasoned professionals and DIY enthusiasts.

At a weight of 72 pounds per unit, they might be a bit cumbersome to handle, especially for solo users. The size of the top plate (8"x8") is adequate for many applications, but users working in tighter spaces may need to consider if it will fit their needs effectively. The safety features, including a lock-set screw, add another layer of assurance, which is crucial when supporting heavy loads. These shores are versatile and are primarily suited for construction purposes rather than casual or light-duty use.

The ASTAMOTOR Adjustable 4 1/3" - 7" House Floor Jacks are a solid choice for those needing support for stairs, porches, decks, and crawl spaces. With an impressive load capacity of 4500 lbs, these mini jacks offer robust support for various applications.

They feature an adjustable range from 4.3" to 6.6", making them versatile for different leveling needs. Made from heavy-duty steel with a zinc-plated surface, they are designed to resist corrosion and ensure long-term durability. The ease of adjustment is a standout feature, as the base plate remains stationary while the top plate swivels to the required height, secured by tightening a positioning nut with a wrench. This makes installation simple and manageable by one person.

The base and top plates are adequately sized to provide stable support, measuring 3.78" x 3.78" and 3.23" x 3.23" respectively. However, the limited adjustable range may not suit all projects, and the golden color might not be aesthetically pleasing for all users. It is a practical and reliable set of jacks for anyone needing sturdy support in a variety of settings. The one-year warranty and responsive customer service are additional advantages.