---
product_id: 628768539
title: "JACK STACK - Bottle Jack to Post Adaptor. Center 4x4 Post While Utilizing 1/4\"\" Steel to Help Prevent Post Damage., Black"
brand: "jack stack"
price: "10592 kr"
currency: ISK
in_stock: true
reviews_count: 8
category: "Jack Stack"
url: https://www.desertcart.is/products/628768539-jack-stack-bottle-jack-to-post-adaptor-center-4x4-post
store_origin: IS
region: Iceland
---

# 3-5/8” square opening fits standard 4x4 posts Includes 4 screws for precise post centering 1/4" steel plate for durability JACK STACK - Bottle Jack to Post Adaptor. Center 4x4 Post While Utilizing 1/4"" Steel to Help Prevent Post Damage., Black

**Brand:** jack stack
**Price:** 10592 kr
**Availability:** ✅ In Stock

## Summary

> 🖤 Elevate your lifting game—center, secure, and conquer every project with JACK STACK!

## Quick Answers

- **What is this?** JACK STACK - Bottle Jack to Post Adaptor. Center 4x4 Post While Utilizing 1/4"" Steel to Help Prevent Post Damage., Black by jack stack
- **How much does it cost?** 10592 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/628768539-jack-stack-bottle-jack-to-post-adaptor-center-4x4-post)

## Best For

- jack stack enthusiasts

## Why This Product

- Trusted jack stack brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Centering:** Patent-pending design ensures your 4x4 post aligns perfectly over the bottle jack saddle, minimizing tipping risks.
- • **Universal Compatibility:** Fits most 4x4 posts and jack saddles up to 2" thick, making it the go-to adaptor for DIY pros and contractors alike.
- • **Load Distribution Excellence:** Rimmed steel plate evenly spreads load to prevent post base damage and slipping during lifting.
- • **Easy Installation & Stability:** Includes 4 screws for secure positioning, giving you confidence and control on every lift.
- • **Heavy-Duty Steel Construction:** Crafted from robust 1/4" steel with welded joints and powder coat finish for long-lasting strength and corrosion resistance.

## Overview

The JACK STACK Bottle Jack to Post Adaptor is a precision-engineered 1/4" steel plate designed to center 4x4 posts on bottle jack saddles up to 2" thick. Its welded construction and powder coat finish ensure durability, while the included screws allow for secure, stable positioning. Ideal for DIY enthusiasts and professionals, it prevents post damage and reduces tipping risk by distributing load evenly during lifting tasks.

## Description

Using the patent pending JACK STACK assists in centering the typical 4x4 jacking post over a bottle jack. The JACK STACK sits on top of your bottle jack saddle, and the screws are adjusted to center the JACK STACK and jacking post above directly over the bottle jack. Lifting with an off-centered jacking assembly will easily tip as load increases. JACK STACK is added convenience in keeping your post centered over your jack as well as distributing the load over the bottom of the post. It accommodates up to a 2” jack saddle (head) and 3-5/8” jacking post. Most 4"x4" posts are 3-1/2", but please ensure your jack and your favorite jacking post fit before ordering. Neither bottle jack nor post is included.

Review: Game-Changer for Our DIY Projects! - 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!
Review: 4x4 post adapter for bottle jack - Works perfect and welds are great

## Features

- Added convenience while jacking.
- 1/4" steel plate with rim to aid in centering the post, prevent the post from slipping off the jack, and to minimize any post base damage via load distribution. 3-5/8” square opening to fit the typical 4"x4" (nominal) post.
- Welded construction and powder coat finish.
- Max 2" opening to accommodate most jack saddles. 4/EA screws included and used for positioning the post directly over the jack. Screw thread distance to baseplate is 5/16", so please check your jack saddle thickness. Smaller saddles may not contact the entire screw face, so adding properly sized steel shims/washers (not included - see video) between saddle and baseplate may remendy said issue on thinner saddles. You can center on sloped saddles, but tightening may or may not work.
- WARNING: This product aids in centering the jacking post over the jack saddle, which is just ONE point of alignment in the lifting assembly. This product was NOT made to afix the adaptor to the saddle to allow for working on uneven ground or using if the load above is off-centered from the jack/post, etc. Under improper loading conditions, your jack will likely tip.
- NOTE: Some older, swollen, or various other 4x4 lumber may be larger than 3-1/2”. It’s likely that 99% of the posts from a home improvement and lumber yards will fit. If yours does not fit, you have a choice of carefully chiseling/trimming the bottom 3/4” of the post or finding a normal post to use.
- DISCLAIMER: From the heavy steel construction, the centering ability, and the tight post clearance, heavy emphasis went into this design to ensure you have a better jacking experience. Ultimately, jack safety is YOUR responsibility. Please research jack safety if you need additional guidance. Jacking is dangerous. You can get hurt or die by not using proper safety, overloading, working on slopes, using defective equipment, etc. This device may or may not make jacking safer.
- Adapter and screws only. Bottle jack nor the post is included.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CL7RJG5F |
| Best Sellers Rank | #137,198 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #219 in Jack Accessories #230 in Industrial Floor Jacks |
| Brand | JACK STACK |
| Customer Reviews | 4.6 4.6 out of 5 stars (37) |
| Date First Available | February 19, 2024 |
| Item Weight | 1.76 pounds |
| Item model number | 4x4 |
| Manufacturer | Narrow Path Construction |
| Manufacturer Part Number | JS4x4 |
| Model | JACK STACK |
| Product Dimensions | 4 x 4 x 2 inches |

## Product Details

- **Brand:** JACK STACK
- **Color:** Black
- **Material:** Carbon Steel
- **Maximum Lifting Height:** 4 Inches
- **Vehicle Service Type:** Trucks, SUVs, Some Trailers and Off-road Vehicles

## Images

![JACK STACK - Bottle Jack to Post Adaptor. Center 4x4 Post While Utilizing 1/4"" Steel to Help Prevent Post Damage., Black - Image 1](https://m.media-amazon.com/images/I/314cVUwe-5L.jpg)
![JACK STACK - Bottle Jack to Post Adaptor. Center 4x4 Post While Utilizing 1/4"" Steel to Help Prevent Post Damage., Black - Image 2](https://m.media-amazon.com/images/I/41-HXw0GMgL.jpg)
![JACK STACK - Bottle Jack to Post Adaptor. Center 4x4 Post While Utilizing 1/4"" Steel to Help Prevent Post Damage., Black - Image 3](https://m.media-amazon.com/images/I/41FIvaGCfWL.jpg)
![JACK STACK - Bottle Jack to Post Adaptor. Center 4x4 Post While Utilizing 1/4"" Steel to Help Prevent Post Damage., Black - Image 4](https://m.media-amazon.com/images/I/61DZhbmEvwL.jpg)
![JACK STACK - Bottle Jack to Post Adaptor. Center 4x4 Post While Utilizing 1/4"" Steel to Help Prevent Post Damage., Black - Image 5](https://m.media-amazon.com/images/I/61XK7F9ZkdL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Game-Changer for Our DIY Projects!
*by A***A on September 21, 2024*

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!

### ⭐⭐⭐⭐⭐ 4x4 post adapter for bottle jack
*by A***R on November 6, 2025*

Works perfect and welds are great

### ⭐⭐⭐⭐⭐ Works well but make sure and keep everything good and level
*by F***U on February 11, 2025*

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.

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-01-23*