HEAVY DUTY SUPPORT: Ellis Timber Jack provides reliable support for house leveling, basement jack posts, and floor beam lifts. With a 30,000 lbs safe load capacity, this adjustable jack post is ideal for both residential and commercial projects. EASY INSTALLATION: Simply fasten the Ellis Timber Jack to a 4x4 or 6x6 lumber to create a shoring post with 5" of adjustment. Turn the U-shaped handle at the bottom of the screw to adjust height, making it perfect for crawl space and floor support. SECURE FOUNDATION: This high-quality timber jack includes a durable base plate to enhance stability. It’s engineered to handle heavy loads, providing consistent, safe support for foundation repairs, basement floor jacks, and lifting applications. MAXIMUM PERFORMANCE: Weight: 13 lbs. Safe Load Capacity: 30,000 lbs. Height: 10". Base Plate: 5". Acme Screw Size: 5-1/2". Adjustment Range: 5". Lifting Capacity: 4000 lbs. Ideal for house jacks, floor support posts, and foundation leveling. ELLIS MANUFACTURING FOR QUALITY: Since 1951, Ellis Manufacturing has been a trusted provider of timber jacks and foundation jacks for leveling. We specialize in durable, high-performance shoring posts for both residential and commercial construction.