About this item

• [Home and Industrial Applications]: Not intended as permanent supports; Home leveling adjustable column jacks comes in a 4 pack so you can temporarily secure weak floors, crawl spaces, stairs, roof trusses
• [Lift Your Foundation]: Whether age or disaster led to your sagging floors, lift them with the BISupply Basement Floor Jacks for temporary leveling support during construction renovations and repairs
• [Adjust to Your Needs]: Our basement support columns screw jack post adjusts from 19-36in (48.3-91.4cm) tall using turning bar and screw bolt for temporary bracing
• [Trusted Quality]: ISO9001 certified oxide finished steel ceiling jack post; 3in (7.62cm) diameter base post with welded-on floor plate and screw jack post; Turning bar with a large roof plate and 4 locking pins
• [Strong Enough]: Before extending, attach the base plate firmly to your concrete slab; each jack can support a maximum load of 9,700 lbs (4,400 kg) at a minimum height of 19 inches and 6,800 lbs (3,084 kg) at a maximum height of 36 inches.