WorkPro Quantum 9000 Ergonomic Chair

The WorkPro 9000 is a very popular mid-priced mesh office chair. But why? What makes this chair any different from other adjustable mesh task chairs on the market?

For one, it has most of the bells and whistles and adjustability that you’ll find on much higher priced office chairs, and a very similar design to the premium Ergohuman model that many customers rave about.

Also, many people just want a solid and comfortable mid-back office chair that will do the job.

There’s more to it, of course, even including some flaws.

So let’s dive a little deeper in this WorkPro 9000 Quantum review so you have all the details before deciding if it’s the right chair for your work setup.

Our WorkPro 9000 Review

WorkPro Quantum 9000 Series Ergonomic Mid-Back Mesh/Mesh Chair, Black

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This office chair features a mesh back with built-in adjustments for a personalized experience that will let you sit in this chair for many hours without any discomfort.

But before we get into the design and comfort, we should note how easy Assembly is with this chair. Most customers find it takes an average of 15 minutes from unboxing to sitting in the chair. With the pre-aligned bolts, simple and clear instructions, and basic attachment steps, building the chair is a breeze. And that’s always a good sign of a well-made office chair.

As soon as you take a seat on the WorkPro 9000 chair, you’ll notice how comfortable and supportive it feels. It has plenty of ergonomic features that will allow you to remain sitting for many hours before even needing to stand up and walk around.

Due to the design, it helps to improve your posture, provide support to your lumbar region, as well as keeping the strain off of your legs (thanks the passive front edge – explained below).

Plus, it’s covered with a breathable mesh that works as a fantastic ventilation system that will keep the air circulating around your body so that you can remain sweat-free.

This is a really useful feature, especially in the warmer months, or if you work in a hot office and need a little extra helping hand staying cool and fresh.

But make no mistake – this chair is all mesh. If you wanted a combination of materials, such as fabric or leather, this is not the chair for you.

If mesh is what you’re looking for, then you’ll appreciate top-to-bottom comfort and breathability of this one. It also has a very prominent S-curve design to prove more back and lumbar support, as well as a 3-way synchro tilt mechanism to let you dial in the exact tilt and seat angle ratio for a very comfortable sitting position.

You’ll often see features like the synchro-tilt on high-end chairs (i.e. the Steelcase Leap), but not as much on mid-range mesh chairs. This is how the 9000 stands out, in our opinion.

So, how do they fit all this in, while keeping such a budget-friendly price tag?

WorkPro Quantum 9000 Series Ergonomic Mid-Back Mesh/Mesh Chair, Black

We think it comes down to some compromises on material quality. This chair is heavy, and the plastic and nylon frame pieces might not feel as lightweight or high-quality as on chairs in the upper echelon of ergonomic design. With cheaper frame and trim materials, you’ll lose out on some durability and build-quality.

For example, the 9000 has a weight capacity of 275 lbs. That’s not bad by any stretch. But a chair like the Leap can easily hold up to 400 lbs. Other chairs, like the Branch ergonomic chair, give you a 300 lb limit, and that’s partly due to a very sturdy steel 5-star base.

But if you can live with a lower weight capacity and compromise a little on the frame materials, like many of us can, you’ll really appreciate that more focus went into creating a comfortable, adjustable, and ergonomic framework for longer days at the office. It’s also small enough for a home office setup and affordable enough for a larger quantity purchase in a commercial space.

Ok, still not sure about the Quantum 9000?

Keep reading to discover some of the standout features of this chair.


WorkPro Quantum 9000 Series Ergonomic Mid-Back Mesh/Mesh Chair, Black


  • Height: 43-¾ inches
  • Width: 29-½ inches
  • Depth: 28 inches
  • Adjustable arm height: yes
  • Adjustable height range: 37-½ – 43 ¾
  • Adjustable back height: yes
  • Adjustable forward tilt: yes
  • Maximum Weight: 275lbs

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Buying Guide

WorkPro Quantum 9000 Series Ergonomic Mid-Back Mesh/Mesh Chair, Black


Waterfall Seat Cushion

Made with comfort in mind, the WorkPro Quantum 9000 features a Waterfall seat cushion design. Unlike standard office chairs, this one slopes downwards in the center which not only feels very comfortable, but it also helps to reduce any stress on your lower body and legs, which means that you will be able to sit for prolonged periods of time without any aches or pains.

Lumbar Support

This is one of our favorite features on this chair. The lumbar feature supports your lower back and helps to support the natural curve of your spine. Though it isn’t adjustable like some other models on the market, Quantum 9000 is a mid-back chair which means that it is able to cater to both short and tall people, making it an ideal chair for shared office environments.

Tilt Mechanism

The backrest on the Quantum 9000 Chair is able to tilt around 30 degrees backward from upright by design.

WorkPro Quantum 9000 Series Mesh/Fabric Mid-Back Manager's Desk Chair, Lime/Black

There is a tension knob that is easy to reach from sitting position that will allow you to adjust the amount of resistance you’d like to feel, while the Synchro-tilt helps keep the proper balance as you relax.

Not only that, but a switch on the left will also allow you to lock in the tilt angle so it doesn’t bounce back if you prefer, it’s entirely up to you.

Sturdy Nylon Frame

WorkPro Quantum 9000 Series Ergonomic Mid-Back Mesh/Mesh Chair, Black

Offering a maximum weight limit of 275 lbs, the WorkPro Quantum 9000 features a 5-pronged base with a nylon frame that provides sturdy foundation.

Not only can you put your confidence in the stability of this chair, but you can also enjoy its convenience thanks to the 5-pronged base supporting a 360 spin axis, while the wheels move silently and quietly to maintain a quiet working space with no distractions.

The Quantum 9000 comes with dual-wheel black casters that are made from a hard nylon material. These type of casters works great on carpet or other soft surfaces. If you have hardwood floors, or just need a more versatile and softer wheel, check out our guide to replacement casters or just head over to Amazon and pick up a set of rollerblade casters (very popular these days).

In addition to the 5-pronged base and sturdy nylon frame, all of the important parts of the structure are made of metal.

One of the most common drawbacks of a budget office chair is the use of plastic in the frame, which can often lead to breakages or it needs to be replaced frequently. Instead of plastic, the WorkPro Quantum 9000 features strong metal in the armrest base and the links between the seat and the backrest.

This ensures that the WorkPro Quantum 9000 will be able to withstand regular use without any issues and, as long as the mesh doesn’t tear, we think that this chair will last you for up to 5 years.

Comparing: WorkPro Quantum 4000, 9000 and 12000

Each chair in the WorkPro Quantum line-up offers a nice balance of modern ergonomics, functionality, comfort and style for a home office or workspace.

There are slight differences, however, and you’ll notice that with each upgrade you receive additional adjustability options, wider seat dimensions, and an increase in price.

Here’s a quick comparison of the 4000, 9000 and 12000:

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For a review of the WorkPro 1000, read this post.

Advantages and Disadvantages

To help you decide if this is the right office chair for you, check out the pros and cons below:


  • The armrests have a gel filling inside them which offers an additional level of comfort and stops any aches or pains in the forearm area
  • The nylon structure is strong and sturdy and is able to withstand up to 275lbs
  • In the mid-section of the mesh back, there is a backrest which is able to deliver exceptional lumbar support to your waist area
  • It is reasonably priced
  • The waterfall seat pan design allows you to sit comfortably in this chair for a prolonged period of time, all the while taking the strain off of your lower legs
  • You can recline it up to 30 degrees, with the Synchro-tilt feature helping to keep you balanced while you lean back and relax


  • The standard model does not come with any neck support, which may be a downside for some who would prefer to have this area supported. Although you can find an upgraded version with a headrest attachment.
  • The lumbar support area cannot be adjusted
  • For some customers, the weight capacity and overall spine support is not enough. If you need maximum support with higher weight capacity, we recommend looking at big and tall office chairs.

Final Thoughts

Our verdict? If you’re thinking of purchasing this chair, you’re not going to have any regrets. Mesh back chairs have got a bit of a reputation for being uncomfortable, however, the Quantum 9000 is one of the most comfortable mid back mesh chairs that we’ve ever come across, and we’re not just saying that.

Just from taking a look at the numerous 5-star ratings on Amazon, many users have praised the subtly sloping shape of the Quantum 9000 because it helps to promote healthier posture without feeling restrictive, not to mention helping them remained aligned with the computer screen.

The waterfall seat also gets a lot of praise, with many reporting that leg strain is significantly lower than with other models, making this a popular choice for those that suffer from knee pain or back injury.

The incorporation of mesh in the back of this chair ensures that you will stay sweat-free throughout the day, while the flip-up armrests utilize have gel padding in order to provide optimal comfort, ease fatigue and help you get through the day without any frustrating aches or pains.

Though it might not be as flashy as some of the more expensive models on the market, there is still a lot to love about this bestselling office chair.

It’s going to keep you cool, provide exceptional lumbar support as well as allowing you to recline backward up to 30 degrees if you needed to stretch your back or relax a little bit, not to mention that you can get it for under 400 dollars.

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