Simply position them under the area that needs reinforcement, adjust the height by turning the nut, and secure them in place for instant stability. The weight that the jack is able to carry depends partially on the support underneath the jack. This post is rated up to 4500 pounds. STRONG SUPPORT - Built to Last: With a sturdy 5 x 5 base and a solid 3 x 3 top plate, each house jack for leveling can support up to 4500 lbs. Jack Stands 4 Pcs Floo Jack Posts, 6.5" - 8.5" Height Adjust Scew Jacks Low Profile Jack SPACE-SAVING DESIGN - Compact and Efficient: With their sleek, compact design, these support posts are easy to store and fit perfectly in tight spaces. 4 Pcs Floor Jack Posts, 6.5 - 8.5 Height Adjust Screw Jacks, House Level Supports, DIY Foundation Leveling Jacks Ideal for Stairs and Basement Floor Joist Support Jacks, Black each post is rated... The more jacks that you use, the weight is spread out between the jacks. The jack's base should sit on a level surface, such as a cement block or wood beam. Their finish not only enhances durability but also ensures they blend seamlessly with your construction projects. Small Manually Operated Screw Jacks Lifting System For Labeling Machine Height Adjustment In Packing Machine In Usa 1 638 INTUITIVE SETUP - Quick and Simple Adjustment: Setting up these support posts is straightforward. Tube - Oil Cooler 6C3Z-7C410-AA These posts are ideal for adding stability to areas like basements, crawl spaces, or under staircases. ADJUSTABLE HEIGHT - Perfect Fit for Every Project: Easily adjust the height from 6.5 to 8.5 to achieve the perfect level of support.