Telescoping Jack Post, 12–16 in, 9700 lb Capacity

Basement jack post provides fast, adjustable temporary support to help level sagging floors and stabilize beams during repairs. Built from Q235 steel with a rust-resistant finish, this telescoping support jack adjusts from 12–16 in to fit tight basements, crawl spaces, and renovation sites. A welded, integrated base plate simplifies setup and keeps the post stable under load, while tool-free lever rotation makes height changes quick when you’re shimming, lifting, or holding in place.

• Delivers up to 9700 lb max load capacity for temporary support of beams and floor joists


• Adjusts from 12–16 in to dial in height for leveling and lift support in tight spaces


• Operates with simple lever rotation for tool-free, quick height changes on the job


• Includes an integrated welded base plate for faster installation and stable footing


• Resists corrosion with a rust-resistant steel finish suited to basement conditions

When a floor dips or a beam needs holding during a project, a reliable adjustable jack post can save time and reduce rework. This support beam jack is designed for straightforward placement, stable contact, and controlled adjustment—ideal for temporary structural support during renovations, patio work, and construction tasks. Keep one on hand for planned leveling jobs or unexpected settling so you can brace, lift, and support with confidence. Grab yours today and be ready for your next repair or remodel.

• Type: Telescoping basement jack post / adjustable support jack


• Max load capacity: 9700 lb (4399.85 kg)


• Adjustable height range: 12–16 in (30.48–40.64 cm)


• Material: Q235 steel


• Base/Top plate size: 4 x 6 in (101 x 153 mm)


• Finish: Rust-resistant


• Quantity: 1 pack