Akron Products Adjustable Steel Floor Jack, 2 ft. 10 In. to 4 ft. 7 In. is designed for temporary support during remodeling projects to reinforce stairs, porches, decks, or weak floors. This adjustable floor jack is easy to assemble and install, constructed from premium quality steel that is coated to prevent corrosion. All moving parts fit snugly to avoid lateral displacement, while the deeply embossed top and bottom plates help mitigate movement and prevent dishing. Made from heavy-duty high-carbon steel that is double locked for added safety, this floor jack reliable compression strength tested to failure. For safe or allowable load limits, consulting a licensed engineer is . This model adjusts from 2 feet 10 inches to 4 feet 7 inches and has a compression strength of 14,000 lbs at maximum extension, making it a durable and dependable choice for your support needs. Model Number: C-2