19.5ft-34.5ft Adjustable House Floor Jacks 4-Pack - Heavy Duty Support

In this review of the 19.5'-34.5' Height Range Adjustable House Floor Jacks 4-Pack, the bottom line is straightforward: these are practical, heavy duty support posts for projects that need reliable, adjustable shoring. The set is aimed at contractors, remodelers, and homeowners dealing with sagging floors, basement beams, crawlspaces or stairwell repairs. The single biggest reason to buy is the combination of a wide 19.49' to 34.45' adjustment range and galvanized construction that resists corrosion while offering up to 2 ton bearing capacity per jack.

Key Features

• Adjustable height: The 19.49' to 34.45' range gives flexibility for a variety of floor or beam heights during renovation and leveling tasks.
• Galvanized steel construction: Corrosion-proof material improves durability and suitability for basements, crawlspaces, and farm uses.
• High load capacity: Each jack supports up to 2 ton (4400 lb), providing a combined 8 ton capacity when all four are used together for heavy work.
• Compact plates: A 4.92' base plate and 3.23' top plate provide stable contact with joists, beams, or ceilings during support operations.
• Included hardware and locks: The double carriage locks and supplied screw bolts and nuts simplify installation and add safety during use.

Who It's For

These adjustable house jacks are best for tradespeople, DIY renovators, and property owners tackling sagging floors, supporting basement beams, shoring stairwells or stabilizing crawlspace joists. The galvanized finish and practical plate sizes make them suitable for both interior and outbuilding projects where rust resistance matters.

Those who need fine micrometric height adjustments or hydraulic lifting should look elsewhere; these jacks are designed as fixed adjustable supports rather than powered lifting equipment. If you need single-jack high-precision jacking for frequent repositioning rather than stable long-term support, a different tool may be a better fit.

Pros & Cons

Pros

• Sturdy galvanized construction gives corrosion resistance and long service life.
• Wide adjustment range covers common floor and beam heights for renovation tasks.
• High per-jack load rating of 2 ton provides confidence when supporting heavy structures.
• Includes carriage locks and fasteners to make installation straightforward.

Cons

• Some buyers note mixed opinions on ease of adjustment, since the design is manual rather than mechanical.
• Not a powered jack; intended as adjustable support posts rather than rapid lifting devices.

Specifications

Range of adjustment	19.49' - 34.45'
Base plate dimension	4.92' x 4.92'
Top plate dimension	3.23' x 3.23'
Base pipe diameter	2'
Middle pipe diameter	1.78'
Top thread rod diameter	0.67'
Bearing capacity	2 ton per jack / 8 ton total (4-pack)

Our Verdict

The 19.5'-34.5' adjustable house floor jacks are a pragmatic, value-minded choice for anyone needing dependable, corrosion-resistant support during repairs and renovations. They excel as stable, manually adjustable posts with solid load capacity and clear installation hardware, making them a good buy for contractors and homeowners who need durable long-term support rather than powered jacking.

Frequently Asked Questions

What is the maximum load per jack?
Each jack is rated to support up to 2 ton (4400 lb), and the four-pack totals 8 ton.

Are these jacks corrosion resistant?
Yes, the jacks are made from galvanized steel to resist corrosion in basement and crawlspace environments.

Do these require additional hardware to install?
The set includes screw bolts, nuts and double carriage locks so basic installation can be completed with common hand tools.