ASTAMOTOR Jack Posts 6-Pack — Galvanized Adjustable Floor Support Jacks 11–16 in, 6-Ton Total Capacity

ASTAMOTOR 6 PCS House Floor Jacks are adjustable galvanized support posts that provide temporary or supplemental stabilization for floor beams and joists within an 11"–16" height range and a combined capacity of 6 tons.

Designed for builders, remodelers, and homeowners tackling leveling or repair jobs, these steel jack posts slide to the required height and lock in place with a wrench-tightened nut. The zinc-plated finish resists corrosion for longer life in crawl spaces, decks, porches, and other load-bearing locations where temporary or additional support is needed during construction or maintenance.

How do these jack posts help when leveling a sagging floor?

The adjustable posts let you lift or stabilize individual joists and beams to restore a flat surface without dismantling the structure. Because each post swivels at the top and secures with a positioning nut, you can fine-tune alignment and hold the beam while you make permanent repairs.

• 11"–16" telescoping range accommodates common joist clearances.
• Swiveling top plate conforms to angled surfaces for secure contact.
• Wrench-tightened nut locks the chosen height quickly and reliably.
• Used in multiples for even distribution of load across a span.

What are the load limits and dimensions I should plan for?

All six posts together support a total minimum and maximum capacity of 13,200 lbs (6 tons). Each post has a 5" x 5" base plate and a 3" x 3" top plate, giving stable contact points that suit joists, beams, and other common structural members.

• Effective height range: 11.6" to 16.1" (approximate inches shown).
• Base plate thickness 0.19" with 0.5" mounting holes for anchoring.
• Top plate 3" x 3" sized to sit under beams securely.
• Total rated capacity: 13,200 lbs when posts are used as specified.

How quickly can one person install and secure a post?

Installation is straightforward: position the base, rotate the top plate to the beam, extend the inner tube to the desired height, then tighten the nut with a wrench. A single installer can place and secure a post in seconds, making them useful for temporary propping and spot stabilization.

• Simple swivel top conforms without disassembly.
• No special tools required beyond a standard wrench.
• Quick tightening gives immediate support while you work.

What materials and finishes are used for durability?

The posts are fabricated from heavy-duty steel and finished with zinc plating to slow corrosion in moist or enclosed environments. That combination delivers strength for load-bearing tasks and helps extend service life in crawl spaces, basements, and outdoor deck repairs.

• Heavy-gauge steel tubing for structural rigidity.
• Zinc-plated surface for enhanced rust resistance.
• Robust plates and fasteners sized for construction loads.

Who is this for: These ASTAMOTOR jack posts suit contractors, DIY renovators, and homeowners who need dependable temporary support during floor leveling, beam repairs, porch or deck reinforcement, and crawl space work. The 6-pack provides multiple support points for larger jobs, while the simple one-person installation and corrosion-resistant finish make them practical for repeated use in both interior and exterior applications.