Adjustable Screw Jack - Ideal for leveling floors, beams, and load-bearing tasks, this construction jack features patented thrust bearings for improved efficiency. Ideal for reinforcing slabs, decks, and more in residential and commercial settings. Safe Load Capacity - This screw jack supports up to 20,000 lbs, ensuring secure support for both temporary and long-term use. Made with high-strength steel, it maintains structural alignment with a 2.5/1 safety factor, for heavy-duty construction. Powerful Lifting - Featuring Ellis’ patented Lifting Nut Assembly, this jack post increases lifting capacity up to 10x for precise height adjustments. With durable steel construction and top plate, it supports floors, ceilings, and beams with ease. Specifications & Materials - Weight: 18 lbs, Adjustable Range: 10"-14", Safe Load Capacity: 20,000 lbs. Built with high-strength steel, a 3/8" thick top plate with pre-drilled holes, and a 2" Schedule 40 pipe for superior load-bearing durability. Trusted Quality - Since 1951, Ellis Manufacturing Co. has been a trusted leader in structural support solutions. Our leveling screw jacks are known for long-lasting performance and reliability, ensuring for residential and commercial projects. Ellis Manufacturing’s Light Duty Steel Construction Jack offers an ideal solution for both temporary and permanent structural support, designed to easily handle heavy loads. Equipped with innovative patented thrust bearings, these leveling jacks provide superior efficiency in lifting applications.These thrust bearings reduces friction, ensuring smoother and easier height adjustments, even under heavy loads, making them an essential tool for contractors and DIY enthusiasts. The Ellis Light Duty Steel Screw Jack is engineered to lift up to 10 times the load capacity of traditional light-duty jacks. This is made possible by the patented thrust bearing system, which enhances lifting capacity and improves lifting performance, even under tough conditions. The lifting nut, which houses small thrust bearings, reduces the force required to adjust the height, making these jacks more user-friendly compared to conventional systems. Designed as a complete, durable unit, Ellis Light Duty Steel Jack Posts resist uplift, providing stability that can come apart during use. Additionally, a set screw on the side of the lifting nut locks the adjustment handle in place, ensuring that the height remains secure and fixed. This feature is useful for long-term shoring applications. The 2.5-to-1 safety factor built into these leveling jacks further boosts their reliability, ensuring secure and safe use throughout construction, renovation, or leveling tasks. Ellis Light Duty Steel House Jacks for Leveling are built to handle the job. Their floor jack design and powerful lifting capability, combined with durable construction and easy adjustability, make these lifting shores indispensable tools for any structural support project. Trusted by professionals since 1951, Ellis Manufacturing ensures their lifting jacks provide the quality, performance, and durability needed for all types of construction and renovation projects, making them a choice for both residential and commercial applications.