Screw Jack Post, 4x4, 13.2–18.7 in, 24,700 lb

Screw jack post support delivers fast, stable temporary bracing for home leveling, floor lifting, and crawlspace or basement shoring. Built from durable Q235 steel, it supports heavy loads while the adjustable height range helps you dial in precise support under beams and joists. Designed to pair with a standard 4x4 wood post, it’s a practical choice for repair work, renovations, and construction setups where controlled, repeatable adjustment matters.

When floors sag, joists need reinforcement, or a beam needs temporary support during a repair, reliable adjustability is the difference between “close enough” and properly set. This adjustable shore jack is built for controlled height changes and solid contact at the plates, helping you stabilize work areas with less guesswork. Use it for temporary support only and match it with a properly sized wood post for your job. Grab yours today and keep your next leveling or lifting project moving.