1 Pack Adjustable Jack Post Steel Floor Jack Floor Support Jack Pole Jack for Porch Roof Deck Heavy Load Areas, 23.23"-43.31" Adjustable Height, Black

I used this Adjustable Floor Jack Post to shore up a sagging area in our crawl space where our kitchen refrigerator sits. It worked well for that purpose. The only negative aspect of the product is that the top metal support plate and threaded rod are one piece. (i.e. the user needs to rotate the entire top support plate to the desired height - rather than just the threaded rod, like many other floor jacks) This made it a bit more difficult for my application. However this was clearly explained in the product description, and enabled the price to be lower than the other floor jacks offered.) I simply used an automotive floor jack and a 4x4 post to lift the floor joist to the height needed, and adjusted the Floor Jack Post to fit. On the positive side, both the top and bottom support plates on the Floor Jack Post are drilled with 4 holes allowing the post to be securely anchored at the top and bottom. Overall the product is well made and relatively easy to install.

This is a solid piece and overall happy with it. My only complaints is it looks like you get two stands but this is only for one. Pictures are misleading IMHO.

These are awesome. Heavy duty.

these are super robust and strong! I use mine to support a large subwoofer box that weighs over 135 lbs to keep it from moving around during driving in a 03' 4runner. I have one anchored against the sub box and the other is anchoring a dual 12v battery bank behind the front seats. These are very strong and the double bolt configuration is nice and the bolts tighten fully and there is NO rattling or noise. If you need some posts to support custom sub boxes BUY THESE. the only thing that these posts dont allow is a swivel plate, but the plate does spin so you can tighten without the entire post turning. however, this is very robust and you could simply get a new piece of allthread and weld a ball/swivel plate to it or just buy a threaded swivel plate to swap out. Build quality: very strong simple build quality Value for money: these are worth the price, they are not cheaply designed Ease of installation: pretty straightforward, they have jack like holes then a threaded bolt that extends pretty far Functionality: very strong, wont move at all, these poles are stronger than other materials around it

Might as well buy a 2x4 and cut it to the length you need. Ive had other jacks like this and you were able to adjust it with a wrench to get it to proper height and position, this one you set your height and put it in position, no adjustments.