4 Pack House Floor Jacks Adjustable Jack Post 6.5ft-8.5ft - Stable

In this review of the 4 Pack House Floor Jacks from Duvecfoi, the bottom line is simple: these compact adjustable jack posts are best for homeowners and contractors who need quick, temporary reinforcement for beams, floor joists, porches or deck repairs. The single biggest reason to buy is reliable, concentrated support in a small footprint - each post is designed to carry up to 4500 lbs when set on a solid base, and the pack of four spreads load for greater stability.

Key Features

• Reliable stabilization: Rated up to 4500 lbs per jack, these posts provide dependable support for short-term and semi-permanent repairs when placed on a level base.
• Adjustable height: Telescoping screw allows fine tuning from 6.5' to 8.5' in height to match uneven surfaces or raise a sagging beam.
• Intuitive setup: The simple nut-turn adjustment makes it easy to position and tighten each jack without specialized tools.
• Strong construction: A 5' x 5' base and 3' x 3' top plate deliver a compact footprint with a solid contact area for transferring load to a concrete block or wood support.
• Space-saving design: Compact, finished posts store easily in a garage or workshop and fit tight crawl spaces.
• Versatile use: Suited for basements, crawl spaces, temporary supports and light foundation shimming during repairs.

Who It's For

These jack posts are aimed at DIYers, builders and maintenance crews who need portable temporary supports for floor joists, beams or deck repairs. The set of four is convenient when you want to spread load across multiple points and tackle small to medium localized sagging without heavy equipment.

Those who need long permanent piers, hydraulic lifting capacity, or precision engineered foundation underpinning should look elsewhere; these are best used on a level, solid pad such as a cement block or timber pad and depend on the surface beneath for full rated capacity.

Pros & Cons

Pros

• Sturdy load rating of up to 4500 lbs per post for substantial temporary support.
• Adjustable telescoping screw makes quick height changes easy on site.
• Compact 5' x 5' base and 3' x 3' top plate fit tight spaces and store cleanly.

Cons

• Rated capacity depends on the support underneath the base, so a level pad is required for full strength.
• Not intended as a certified permanent foundation solution for major structural replacement work.

Specifications

Product type	Adjustable jack post
Quantity	4 pack
Height range	6.5 in to 8.5 in
Base size	5 in x 5 in
Top plate size	3 in x 3 in
Rated capacity	Up to 4500 lbs per jack
Finish	Gray protective finish

Our Verdict

For homeowners and tradespeople who need reliable temporary support for joists, beams or a sagging deck, this 4 pack delivers solid value: it combines a high per-jack rating, simple height adjustment and a compact footprint that fits tight spaces. It is a practical, cost-effective choice when used on a proper level base, but not a substitute for engineered permanent foundation work.

Frequently Asked Questions

How much weight can each jack hold?
Each post is rated up to 4500 lbs, though actual capacity depends on the support beneath the base.

How is height adjusted?
Height is adjusted by turning the nut on the telescoping screw to extend from 6.5 in to 8.5 in.

Can these be used permanently?
They are intended for temporary or semi-permanent support; consult a structural engineer for permanent foundation solutions.