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Tiger Brand

Model # J-S-100

Internet # 100022783

Store SKU # 526650

Super S Series 8 ft. 4 in. Jack Post

This item has been discontinued.
The Home Depot no longer carries this specific product.

$49.97 /each


Model # J-S-100

Internet # 100022783

Store SKU # 526650

Store SO SKU # 100415

The Tiger Brand Jack Post Super "S" 8 ft. 4 in. Jack Post can adjust from 4 ft. 8 in. to 8 ft. 4 in. It has a compression load range of 18,000 lbs. at its lowest setting and 9,100 lbs. at its highest setting. It is ideal for correcting sagging floors and basement beams and providing secondary support for room additions, remodeling projects, porches and decks.

  • Strong galvanized plates
  • 4 ft. 8 in. - 8 ft. 4 in. adjustment range
  • Corrects sagging floors, supports basement beams, takes weight off large furniture or appliances
  • Compression load range - 18,000 lbs. - 9,100 lbs.
  • Double carriage bolts and nuts
  • Flush adjusting steel nut with self-centering pilot into the tube
  • Positive locating holes
  • Adjusts easily with a 3/4 in. open-end or adjustable wrench
  • Parts are separate, ready to be assembled

Info & Guides

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Maximum Height (In.) 
100 in 
Minimum height (in.) 
Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Hardware Included 
Maximum load at maximum extension (lb.) 
Maximum load at minimum extension (lb.) 
Product Weight (lb.) 
18 lb 
Warranty / Certifications
Manufacturer Warranty 
Tiger Brand Jack Post Limited Warranty; warrants to the original purchaser that its products are free from defects in material and workmanship under normal use and service for one year from the date of purchase. 


Rated 4.3 out of 5 by 98 reviewers.
Rated 5.0 out of 5.0 by Posted up, taking a load off... As a state licensed builder, I find this product simple to install with easy directions (pay attention to whether it is used to support metal or wood), and it simply handles it's business. Secure and solid, it holds up no matter how many times I bash into it (funny how the places you need these for are always in the most inconvenient places, i.e. The middle of my basement wood shop). Even comes painted up with scratch resistant durable paint (which is code in my state when used in a basement) which saves me the hassle when I need to install them. February 18, 2014
Rated 5.0 out of 5.0 by Product works as designed The Jack Posts supported my concrete porch floor while replacing the foundation walls. March 18, 2014
Rated 5.0 out of 5.0 by Easy to setup, east to adjust to various heights and THEY WORK Used the jack post to support ceiling joist to replace a 21 foot long, 3 1/2 " wide and 16" deep support beam in house. "Tiger" jack post were easy and fast to set up. They worked great and the price was right. July 31, 2013
Rated 5.0 out of 5.0 by Holds a heavy load,easy to use We used the jackpost to hold the porch roof up while ,replacing the floor and the old post . It was easy to put the Jackpost in place next to an old post and lift the weight of the roof up so the old post could be easily removed. We raised the jackpost with a wrench August 21, 2013
Rated 5.0 out of 5.0 by Very useful The jack post was used in conjunction with other jacks to raise a ceiling from within a house before placing a new support beam in place. I was able to raise the interior ceiling 1.5 inches where it had sagged over the years. I accomplished this with no damage to the sheet rock textured ceiling. December 10, 2014
Rated 5.0 out of 5.0 by Did Exactly What I Wanted This product was less expensive than renting from the local rental shop. They (2) held up my patio overhang while I replaced the 4x6 posts. Simple, quick and safe. June 2, 2012
Rated 3.0 out of 5.0 by It did the job The top and bottom plates are thin and warp under a load. I am looking for someone who can make me thicker plates so I can continue to use it and then it will be terrific and 5 star. January 6, 2015
Rated 3.0 out of 5.0 by Functional for the purpose I do recommend it despite my criticisms. The top piece which adjust is not secured to the rest of the device. It sits on top of the tube with a shallow piloting feature machined into the plate which fits onto the tube. Why didn't they make the unit one-piece so the adjuster would not fall off when positioning it? Because of this, taking tensile loads is not possible and keeping the unit under compression is necessary I think to assure everything stays together. The unit worked and is highly adjustable to many lengths. I used it to support my entry stairs as I replaced a 4x4 support post. As a temporary support it worked well and served its purpose. For a homeowner that may likely need a temporary structural support from time to time for house work or decking, it's a good buy and avoids the difficulty of trying to use a hydraulic jack and 4x4 cut to length. I could also see it being functional as a permanent support, although I do not think that is the product intent. It has fastener holes where one could secure each end to a wood structure with screws. July 18, 2015
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