Material Handling Products By ASTAMOTOR

• Function House floor Jacks provides temporary or additional support for leveling and stabilizing floor beams and joists during construction and repairs. Jack post can be used for areas such as stairs, porches, roof beams, decks, crawl spaces and heavy load areas.
• Specifications Range of adjustment: 12\" - 16\"; minimum and maximum height capacity: 8800 lbs / 4 ton in total; base plate dimension: 4.96\" x 4.96\" x 0.19\"; base plate hole diameter: 0.5\"; top plate dimension: 2.95\" x 2.95\" x 0.19\".
• Installation Simply use a pipe wrench to turn the screw to the required height, and then tighten the positioning nut, even one person can install and use in seconds.
• High Quality This adjustable support jack is made of heavy duty steel with zinc plated surface to ensure anti-corrosion and durability.
• Warranty One-year warranty. If you have any questions, please contact us via Amazon Message directly, our professional customer service would help in 24H.