---
product_id: 417802008
title: "Office Chair Base Replacement, 28 Inch Heavy Duty(2500 Lbs) Metal Leg, Reinforced to Repair Swivel Gaming Chair Bottom Part with Universal Caster and Gas Cylinder Size (Matte Black)"
brand: "mastery mart"
price: "€ 109.91"
currency: EUR
in_stock: true
reviews_count: 13
category: "Mastery Mart"
url: https://www.desertcart.sk/products/417802008-office-chair-base-replacement-28-inch-heavy-duty-2500-lbs
store_origin: SK
region: Slovakia
---

# Universal fit for all chairs Supports 2500 lbs load 28-inch heavy-duty base Office Chair Base Replacement, 28 Inch Heavy Duty(2500 Lbs) Metal Leg, Reinforced to Repair Swivel Gaming Chair Bottom Part with Universal Caster and Gas Cylinder Size (Matte Black)

**Brand:** mastery mart
**Price:** € 109.91
**Availability:** ✅ In Stock

## Summary

> 🪑 Upgrade your throne with power and style — because your chair should work as hard as you do!

## Quick Answers

- **What is this?** Office Chair Base Replacement, 28 Inch Heavy Duty(2500 Lbs) Metal Leg, Reinforced to Repair Swivel Gaming Chair Bottom Part with Universal Caster and Gas Cylinder Size (Matte Black) by mastery mart
- **How much does it cost?** € 109.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/417802008-office-chair-base-replacement-28-inch-heavy-duty-2500-lbs)

## 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:** Reinforced alloy steel base engineered to support an impressive 2500 lbs, ensuring unmatched durability and stability for your office or gaming setup.
- • **Effortless Upgrade:** Quick and easy installation with included hardware and clear instructions—transform your chair in under 20 minutes and elevate your workspace instantly.
- • **Seamless Compatibility:** Universal 28-inch diameter design fits virtually every swivel, gaming, and office chair on the market—no guesswork, just perfect fit every time.
- • **Sleek Matte Black Finish:** Modern, minimalist matte black coating adds a professional edge to your chair base, blending seamlessly with any office or gaming environment.
- • **Certified Quality Assurance:** ANSI/BIFMA certified for safety and performance, giving you peace of mind with every sit—because your comfort deserves the best.

## Overview

The Mastery Mart Office Chair Base Replacement is a premium 28-inch heavy-duty metal base designed to support up to 2500 lbs. Featuring a universal fit compatible with most office, gaming, and swivel chairs, it offers easy installation with included casters and gas cylinder sockets. Finished in sleek matte black, this ANSI/BIFMA certified base combines durability, style, and professional-grade quality to extend the life and comfort of your chair.

## Description

Product Description At Mastery Mart , we are committed to provide A better quality and safer product to customers around the world Traditional and modern stylish designs that fit every needs of every family Satisfied customer relationship that grow along with our business A decent chair base replacement for every office chair or game chair. Heavy Duty Chrome Base Stool The reinforced metal and durability of the base will ensure your chair's base is firmly sound for many years. Universal Standard Size Fits almost every swivel chair and rolling stool in the market, with a standard 2" (50mm) center hole to fit perfectly standard 2" diameter gas lift cylinder. Standard Caster Sockets: 7/16’’ x 7/8’’ (11mm x 22mm) . It fits most regular caster stems. Premium Grade Metal This Chrome Base Stool is manufactured of premium polished metal which shows a good sheen. SIZE DETAIL Color: Matte Black Size in Diameter: 28’’ (70 cm). Height of the Base: 4’’ (10 cm) Standard Gas Cylinder Socket: 2’’ (5 cm). Standard Caster Sockets: 7/16’’ x 7/8’’ (11mm x 22mm). Black Base Leg Length: 12.6’’ (32 cm). More about this item Durable and Heave Duty Supports 2500+ LBS (1136KGs) ANSI / BIFMA Certification Easy to Replace and Install Quality Guaranteed STEP 1 Press the caster wheels into the new base STEP 2 Insert the gas lift cylinder into the new base FINISHED! You'll get a durable and firm modified chair!

Review: Perfect Replacement - Easy to assemble, very sturdy, perfect replacement fit. Does increase overall height of chair if that's an issue.
Review: Considerably stronger - The loadbearing structure being of all steel construction this is considerably stronger than my original. Assembled, fitted and in use within 20 minutes. Appears approx 25mm higher than my original which in my case is an added bonus and SO much cheaper than replacing a comfortable and otherwise reliable chair.

## Features

- ➤ WHAT'S IN THE BOX: 1 Set of Office Chair Black Base Replacement, Installation Package, 1 Base Cap.
- ➤ PREMIUM GRADE METAL MADE STRONG BASE REPLACEMENT: This Heavy Duty Chrome Base Stool is manufactured to meet the Office Chair's highest industry standard. 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 replacement 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 GUARANTEED - Very easy installation and replacement with our simple and clear instruction sheet. If this doesn't fit your chair, you can simply return it for a full refund.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07VGW61RY |
| Age Range Description | Adult |
| Arm Style | Armless |
| Back Style | Solid Back |
| Best Sellers Rank | 2,360,220 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 4,003 in Desk Chairs |
| Brand | MASTERY MART |
| Brand Name | MASTERY MART |
| Colour | Black |
| Customer Reviews | 4.6 out of 5 stars 1,207 Reviews |
| Fabric Type | Metal |
| Finish Type | Black |
| Form Factor | Recliner |
| Frame Material Type | Metal |
| Furniture Base Movement | Swivel |
| Furniture Finish | Black,Matte |
| Included Components | Caster |
| Indoor Outdoor Usage | Indoor |
| Is Assembly Required? | Yes |
| Is Customizable? | No |
| Is Foldable | No |
| Item Dimensions | 70 x 70 x 11 centimetres |
| Item Dimensions D x W x H | 177.8D x 177.8W x 27.9H centimetres |
| Item Shape | Circular |
| Item Weight | 2 Kilograms |
| Item weight | 2 Kilograms |
| Leg Style | Straight Leg |
| Manufacturer | Mastery Mart Co., Limited |
| Manufacturer Part Number | MM-REP-BAS001 |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Maximum Weight Recommendation | 2500 Pounds |
| Model Number | Mastery Mart Office Chair Base |
| Pattern | Solid |
| Product Care Instructions | Wipe Clean |
| Product dimensions | 177.8D x 177.8W x 27.9H centimetres |
| Reclining Position Count | 1 |
| Recommended Uses For Product | Gaming, Office |
| Room Type | Game Recreation Room, Office |
| Seat Height | 28 Inches |
| Seat Material Type | Metal |
| Size | 71.12 cm |
| Special Features | Durability |
| Style Name | Modern |
| Surface Recommendation | Hard Floor |
| Tilting | No |
| Unit Count | 1.0 count |

## Images

![Office Chair Base Replacement, 28 Inch Heavy Duty(2500 Lbs) Metal Leg, Reinforced to Repair Swivel Gaming Chair Bottom Part with Universal Caster and Gas Cylinder Size (Matte Black) - Image 1](https://m.media-amazon.com/images/I/61oFU1R5mBL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect Replacement
*by R***S on 13 August 2022*

Easy to assemble, very sturdy, perfect replacement fit. Does increase overall height of chair if that's an issue.

### ⭐⭐⭐⭐⭐ Considerably stronger
*by P***T on 28 March 2023*

The loadbearing structure being of all steel construction this is considerably stronger than my original. Assembled, fitted and in use within 20 minutes. Appears approx 25mm higher than my original which in my case is an added bonus and SO much cheaper than replacing a comfortable and otherwise reliable chair.

### ⭐⭐⭐⭐⭐ Very good quality
*by D***^ on 1 May 2023*

It comes in parts, so a little assembly is required. It's really heavy duty and you can see the quality in it. Unfortunately I had to return it, as I forgot to check how high it is, and I couldn't sit on my chair as it was too tall for my desk and my feet didn't touch the floor.

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**Shop now:** [https://www.desertcart.sk/products/417802008-office-chair-base-replacement-28-inch-heavy-duty-2500-lbs](https://www.desertcart.sk/products/417802008-office-chair-base-replacement-28-inch-heavy-duty-2500-lbs)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-07-17*