4-Pack Adjustable Floor Jack Supports 9.5-13.5 in - Compact Lift

Our review of these 4-pack adjustable floor jack supports finds them best suited for homeowners and DIYers who need a compact, temporary lifting solution for sagging floors, porches, decks and crawlspaces. The single biggest reason to buy is the combination of a small footprint and strong load capacity: each mini screw jack adjusts from 9.5 to 13.5 in and is built to provide reliable temporary support where full-size jacks are impractical. They arrive as a handy set for multiple support points and are easy to position in tight areas.

Key Features

• Adjustable height: The 9.5 to 13.5 in adjustment range lets you fine tune support height for leveling floors, lifting weak joists or shimming porch beams.
• High load capacity: Each steel jack is rated to support heavy loads up to the product's specified capacity, making it suitable for temporary structural support tasks.
• Compact design: Small and space saving, the jacks store easily and fit into narrow crawlspaces or between joists where larger equipment cannot.
• Simple adjustment: Height is changed by turning the screw with a pipe wrench and locking with the set nut, so no special tools beyond common wrenches are required.
• Corrosion resistant finish: The coated steel construction helps protect the supports from rust in damp basement or crawlspace environments.
• Lightweight portability: The mini jacks are easy to carry and position, enabling work in confined areas such as basements, porches and roof beams.

Who It's For

These adjustable floor jack supports are ideal for homeowners, handymen, and small contractors who need a temporary, reliable way to prop up sagging floors, level stair landings, or shore up deck posts during repairs. They work well when multiple support points are required and space is limited.

They are not intended as a permanent foundation solution or as a replacement for engineered structural repairs; those needing a long-term professional fix or precise structural engineering should consult a contractor instead.

Pros & Cons

Pros

• Good value for money when buying a set of four for multiple support points.
• Sturdy steel construction provides reassuring support for temporary leveling jobs.
• Compact size makes them useful in tight spaces like crawlspaces and under stairs.
• Easy to adjust with common tools and to carry into position.

Cons

• Adjustment requires a pipe wrench and manual effort; fine control depends on user technique.
• Designed for temporary support rather than permanent structural replacement.

Specifications

Product format	4-pack adjustable floor jack supports
Height range	9.5 to 13.5 in
Material	Sturdy steel with protective coating
Typical uses	Floors, porch beams, decks, crawlspaces, roof trusses
Adjustment method	Screw turn with pipe wrench and set nut
Portability	Compact and lightweight for small spaces

Our Verdict

For anyone needing a practical, temporary lifting and leveling tool, this 4-pack of mini screw jacks delivers solid value: compact, durable and simple to use where space is limited. They are especially useful for short-term support during repairs and for lifting or leveling tasks in basements, porches and decks, but they should be paired with a permanent repair plan for long-term structural concerns.

Frequently Asked Questions

Can these jacks be used in crawlspaces?
Yes. Their compact size and lightweight design make them suitable for positioning and operating in crawlspaces and other tight areas.

How is the height adjusted?
Turn the central screw to the desired height with a pipe wrench, then tighten the set nut to lock the position.

Are these for permanent support?
No. These jacks are intended as temporary support and lifting aids during repairs and leveling, not as a permanent structural solution.