Tiger Brand Jack Post JS-93 Adjustable 4ft 5in-7ft 9in - Heavy Duty

In this review the Tiger Brand Jack Post JS-93 is evaluated for homeowners and contractors who need a reliable, adjustable secondary support for sagging floors, beams, stairwells or basement repairs. The bottom line: this is a straightforward, heavy duty jack post that stands out for its durable construction and ease of adjustment, giving confidence when a permanent repair is not yet in place. Its plain design and robust materials make it useful for temporary work or long-term secondary support where safety and load capacity matter.

Key Features

• Durable construction: Heavy duty high carbon steel and zinc coated carriage bolt hardware deliver strength and corrosion resistance for indoor support tasks.
• Wide adjustment range: The post adjusts from 4 ft 5 in to 7 ft 9 in, which covers many basement and crawl space heights without needing multiple parts.
• High load capacity: With a maximum extended load of 11,350 lbs and minimum extended load of 18,000 lbs it provides substantial secondary support for structural elements.
• Safety features: Double carriage bolt and nut plus a double locked design offer added safety when supporting beams or floors temporarily.
• Easy to install: The post adjusts with a 3/4 in wrench and uses simple support pins and a threaded screw, so one person can typically install and adjust it quickly.
• Versatile use: Heavy plates sized for wood and steel let the post be used under stairwells, decks, attic framing or in crawl spaces as either temporary or secondary permanent support.

Who It's For

The JS-93 is aimed at DIYers, handymen and contractors who need a robust, easy-to-adjust solution for stabilizing or temporarily supporting structural members. It is especially useful when correcting sagging floors, propping beams during replacement work, or adding secondary supports in basements and crawl spaces.

It is not intended as a primary engineered support replacement; those needing a permanent engineered solution or a custom-sized support should consult a structural professional and look for a primary support system designed for permanent load-bearing with engineering certification.

Pros & Cons

Pros

• Heavy gauge high carbon steel and zinc coated fasteners provide proven durability and corrosion resistance.
• Adjustable range from 4 ft 5 in to 7 ft 9 in covers many common interior heights without extra components.
• High load figures and double locked design add tangible safety when used as secondary support.
• Simple installation with common tools makes it practical for single-person jobs.

Cons

• As a secondary support product, it is not a substitute for a certified primary structural replacement when an engineer specifies one.
• The post is substantial in weight and size, which can be awkward to move in tight spaces.

Specifications

Adjustment range	4 ft 5 in to 7 ft 9 in
Material	High carbon steel, zinc coated hardware
Tube dim & gauge	2-1/4 in x 15 gauge x 45-1/2 in
Max extended load	11,350 lbs
Min extended load	18,000 lbs
Plate size	4 in x 5 in (13 gauge)
Adjusting method	3/4 in wrench, 1 in x 7 in screw, 1/2 in support pins

Our Verdict

The Tiger Brand Jack Post JS-93 is a solid, value-oriented choice for anyone needing reliable secondary support or temporary shoring. Its combination of heavy duty materials, straightforward adjustment and clear safety features make it well suited for correcting sagging floors or propping beams during repairs, though a structural engineer should be consulted for permanent primary support work.

Frequently Asked Questions

Can this post be used permanently?
Yes, it can be used permanently as a secondary support, but it should not replace an engineered primary support specified by a structural professional.

What tool is required to adjust the post?
The post adjusts with a 3/4 in wrench and uses a 1 in x 7 in threaded screw and 1/2 in support pins for locking.

Is the hardware corrosion resistant?
The carriage bolt and nut are zinc coated and the post is described as corrosion resistant inside and out for typical indoor use.