ASTAMOTOR Adjustable Steel Jack Posts 6-Pack 11"–16" Height Range, Galvanized Support for Leveling Floors & Decks

These six adjustable steel jack posts offer a fast, low-skill solution for stabilizing sagging floors, reinforcing decks or porches, and supporting beams during repairs. Each post features a zinc-plated finish for corrosion resistance, a swivel top plate for correct seating on irregular surfaces, and a simple threaded positioning nut so one person can set the height and lock the post in place within seconds.

How do these jacks make leveling and temporary support easier?

The threaded design and swivel top plate let you fine-tune height and alignment without specialized tools. Place the base, rotate the top to the desired position, and tighten the nut to secure the set height. The compact design fits into crawl spaces and under stairs where larger equipment cannot reach.

• 11"–16" adjustment range for precise lift and support
• Swivel top plate for even load distribution on uneven surfaces
• Simple wrench-tightened locking nut for quick installation
• Base plate with pre-drilled holes for optional fastening

What loads and dimensions do these posts support?

All six posts together provide a total minimum and maximum rated capacity of approximately 13,200 lb (6 tons). Each post has a sturdy 5" x 5" base plate and a 3" x 3" top plate sized to stabilize beams without excessive footprint. The compact height range is optimized for floor framing, porches, and similar applications.

• Combined rated capacity: 13,200 lb (6 tons)
• Height range per post: roughly 11.6" to 16.1"
• Base plate: 5" x 5" x 0.19" with 0.5" holes
• Top plate: 3" x 3" x 0.19" for secure seating

Are these jacks durable and easy to maintain?

Manufactured from heavy-gauge steel with a zinc-plated surface, the posts resist rust and hold up to job-site conditions. The simple mechanical design avoids hydraulics or springs, so routine maintenance is limited to keeping threads clean and periodically checking tightness. If you ever need assistance, the product includes a one-year warranty and customer support.

• Zinc plating provides corrosion resistance
• Solid-steel construction for long-term strength
• Low-maintenance threaded adjustment
• One-year warranty and responsive customer service

How quickly can one person install and set a post?

Installation is deliberately straightforward so a single person can position and secure each jack in a few minutes. Keep the base plate stationary, swivel the top plate to align with the beam, extend to the required height, then tighten the positioning nut with a wrench. No special training or power tools are required for most standard applications.

• One-person setup in seconds to minutes per post
• Requires just a wrench for final locking
• Compact size fits tight access areas
• Optional base fastening through pre-drilled holes

Who is this for: Builders, contractors, and DIY homeowners who need a reliable set of short-range adjustable support posts for temporary or supplemental structural support. These six ASTAMOTOR jacks are suited for repair work under floors, porches, decks, crawlspaces, and other places where a compact, durable, and easy-to-install support solution is required. They are especially helpful when multiple support points are needed at once and portability, corrosion resistance, and simple mechanical adjustment are priorities.