---
product_id: 176752688
title: "chair base"
brand: "mastery mart"
price: "A$232"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/176752688-chair-base
store_origin: AU
region: Australia
---

# 28-inch universal diameter fits most chairs Easy DIY installation with clear instructions 2200 lbs heavy-duty metal base chair base

**Brand:** mastery mart
**Price:** A$232
**Availability:** ✅ In Stock

## Summary

> 🪑 Upgrade your throne with strength and style — because your chair deserves the best!

## Quick Answers

- **What is this?** chair base by mastery mart
- **How much does it cost?** A$232 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/176752688-chair-base)

## Best For

- mastery mart enthusiasts

## Why This Product

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

## Key Features

- • **Built to Endure:** Premium-grade metal base supports up to 2200 lbs for unmatched durability and stability.
- • **Effortless Upgrade:** Simple installation kit with clear instructions means you’re back to work or play in minutes.
- • **Risk-Free Replacement:** Satisfaction guaranteed with hassle-free returns if it doesn’t fit your chair perfectly.
- • **Universal Compatibility:** 28-inch diameter and standard sockets fit nearly every office, gaming, or swivel chair on the market.
- • **Sleek Matte Black Finish:** Contemporary style that elevates your workspace aesthetics while resisting wear and tear.

## Overview

The Mastery Mart Office Chair Base Replacement is a heavy-duty, 28-inch diameter metal base designed to support up to 2200 lbs. Featuring universal gas cylinder and caster sockets, it fits most office, gaming, and swivel chairs. Finished in sleek matte black, it combines durability with contemporary style and comes with an easy installation kit and satisfaction guarantee.

## Description

Full description not available

## Features

- WHAT'S IN THE BOX: 1 Set of Office Chair Black Base *************************************************************, Installation Package, 1 Base Cap.
- PREMIUM GRADE METAL MADE STRONG BASE *************************************************************: This Heavy Duty Chrome Base Stool is manufactured to meet the Office Chair's highest industry standard (BIFMA and ANSI). The reinforced metal and durability of the base will ensure your chair's base is firmly sound for many years.
- UNIVERSAL SIZE: The office chair base works perfectly with almost every office chair, gaming chair, desk chair, task chair and swivel chair on the market. The office chair base ************************************************************* has universal sockets that will fit your original casters and gas lift cylinder.
- SIZE DETAIL: Office Chair Base Size in Diameter: 28’’ (70 cm). Chrome Base Leg Length: 12.6’’ (32 cm). Standard Gas Cylinder Socket: 2’’ (5 cm). Standard Caster Sockets: 7/16’’ x 7/8’’ (11mm x 22mm). Height of the Chrome Base: 4’’ (10 cm)
- 100% SATISFACTION ************************************************************* - Very easy installation and ************************************************************* with our simple and clear instruction sheet. If this doesn't fit your chair, you can simply ************************************************************* it for a full *************************************************************.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Colour | Black |
| Product Dimensions | 70 x 70 x 10 cm; 2.25 kg |
| Is assembly required | Yes |
| Assembly type | Require Assembly |
| Primary material | Metal |
| Type of wood | Metal |
| Top material | Metal |
| Finish type | Matte |
| Style | Contemporary |
| Capacity | 70D x 70W x 10H cm |
| Number of pieces | 1 |
| What is in the box? | Caster |
| Item shape | Round |
| Mattress comfort | Recliner |
| Care Instructions | Wipe Clean |
| Seat height | 28 Inches |
| Number of boxes | 1 |
| Shipping weight | 2.9 Kilograms |
| Item Model Number | Mastery Mart |
| Manufacturer | Mastery Mart Co., Limited |
| Item model number | Mastery Mart |
| ASIN | B07ZY36NJ1 |

## Product Details

- **Brand:** MASTERY MART
- **Colour:** Black
- **Material:** Metal
- **Product dimensions:** 70D x 70W x 10H centimetres
- **Size:** 70D x 70W x 10H cm

## Images

![chair base - Image 1](https://m.media-amazon.com/images/I/51WVM0Ag+GL.jpg)
![chair base - Image 2](https://m.media-amazon.com/images/I/71Pv1f4UxzS.jpg)
![chair base - Image 3](https://m.media-amazon.com/images/I/61lyPEj9euL.jpg)
![chair base - Image 4](https://m.media-amazon.com/images/I/61TE6JnVcTS.jpg)
![chair base - Image 5](https://m.media-amazon.com/images/I/61kIXwFKfhS.jpg)

## Available Options

This product comes in different **Colour Name** options.

## Questions & Answers

**Q: Would this work as a replacement base for a DXRacer king series chair?**
A: It's a standard diameter so yes. I've replaced the base on an x-rocker chair, and it made an immediate improvement

**Q: Hi, i bought homcom pu leather office w/massage function, high back-red &the base's gone - split into 2. would this one be suitable as a replacement?**
A: yes it would

**Q: Struggling to remove the old base from my old is it possible that the base and cylinder is one piece?**
A: I know this is a very old comment but for anyone else who might see it, the cylinder can be hard to remove.
There's many YouTube videos about it but what worked for me with a really stubborn one was having half the legs of the base on the side of a bed and hammering the cylinder directly from the bottom, hard. 
I'd spent 10 minutes trying other methods but this eventually worked.

**Q: I have a gas lift that starts off 40cm then expands to 50cm. I'm unsure if this base will work with this or not?**
A: This 'spider' like all these seat bases are universal; I ordered mine as a replacement for a defective existing base it fitted and worked very well.  You should have no problems.

## Frequently Bought Together

- MASTERY MART Heavy Duty Office Chair Base Replacement, 2500 Lbs, 28"(70 cm), Metal Desk Chair Base Replacement Parts with Universal Gas Cylinder Hole and Casters Sockets, Matte Black
- Office Chair Caster Wheels Set of 5 Heavy Duty & Safe for All Floors Including Hardwood 2" Rubber Replace Office Chair Mat, Universal Standard Stem Size Fits 99%-Grey
- 9 Inches to 13 Inches Office Chair Cylinder Replacement, 4'' Stroke, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4 (Polished Steel)

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**Shop now:** [https://www.desertcart.com.au/products/176752688-chair-base](https://www.desertcart.com.au/products/176752688-chair-base)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-22*