JACK STACK - Bottle Jack to Post Adaptor. Center 4x4 Post While Utilizing 1/4"" Steel to Help Prevent Post Damage., Black

It takes a bit of fiddling to get this centered AND seated fully on the pad of the jack. But once there, it provides a solid support for a 4x4 lift post. It's nice that the base of the 4x4 is "captured" and all you need to focus on is the upper end. You need a stable surface for the jack, but that is sort of obvious.

It’s keeps the post stable and secure as long as you make sure and use your level and have your bottle jack level and the post you’re pushing level with the jack. I’m glad I ran across this because I’ve tried jacking a 4 x 4 off the top of a bottle jack and all it did was kept kicking out from underneath the post. If you think it’s overpriced don’t buy it and go buy a welding machine and steel and make your own or get one made for 3 times the price by a welding shop.

Seemed solid, but this really was overpriced. In the end I felt unnecessary for temporary lifts, so I returned them unused.

I bought the Bottle Jack Adapter for our home projects, and it’s been a fantastic addition! My husband has been tackling a lot of construction work lately, and this tool has made lifting and stabilizing posts so much easier for him.The quality is impressive—sturdy and well-made. It fits our bottle jack perfectly, giving him the stability he needs to work efficiently. I’ve seen him tackle tasks that would have been a struggle without it, and he’s even finished projects ahead of schedule!He’s been raving about how much time and effort it saves him, and I love seeing him so satisfied with his work. If you’re into DIY or construction, I highly recommend this adapter plate. It’s been a real game-changer for us!

This product was perfect! I have an old home from the 1800s that needed the floors leveled and some foundation work. I initially was just using 4 x 4s Balanced on the small head of a bottle jack. Set up was not ideal and easily kicked out if things weren’t perfectly plumb. I found these adapters that fit perfectly on the bottle jack and secure the 4 x 4 in place. It made my project 1000 times safer. I liked it so much. I ordered six of them.

The support post that sits in this bracket will not slip out. This is a real game changer for holding a post in place when jacking a roof up to replace porch posts.

I used this jack adapter along with some 4x4 post to raise and level my floor joist from the basement. It worked out perfectly, and I returned the 4x4 when I finished ;) Well worth the small investment! A++

Overpriced