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Realspace® PRO Quantum 9000 Series Ergonomic Mesh Mid-Back Chair, Black
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Realspace® PRO Quantum 9000 Series Ergonomic Mesh Mid-Back Chair, Black

Item # 510830 OfficeMax # 24627343
Multifunction design and gel-padded armrests let you work in comfort
  • Recommended for intensive use 6–8 hours per day.
  • Overall Dimensions: 43 3/4"H x 29 1/2"W x 28"D.
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$339.99 $339.99
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Multifunction design and gel-padded armrests let you work in comfort
  • Recommended for intensive use 6–8 hours per day. 
  • Overall Dimensions: 43 3/4"H x 29 1/2"W x 28"D. 
  • Adjustable armrests with unique gel padding help relieve shoulder strain. 
  • Seat cushion glides forward or backward to customize the chair to your body's shape. 
  • Adjustable tilt angle allows you to move the seat and back for flexibility. 
  • Waterfall seat cushion slopes slightly downward to help reduce stress on your legs.  Easy on the knees, the curved cushion is shaped to naturally fit the position of your legs while you work.
  • Steel frame construction ensures durability. 
  • Weight capacity tested to support up to 250 lbs. 
  • Assembly is required.  Easy assembly instructions are included.
  • Backed by the manufacturer's 10-year limited warranty. 
  • GREENGUARD certified — for products that meet strict indoor air quality guidelines. 
  • Greener choice — contains 55% postconsumer recycled content. 

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Item # 510830 
Manufacturer # QUANTUM  
recommended daily usage 6-8 hours (intensive)
seat size 20 1/2"W x 19 1/4"D
seat material mesh
material color Black
frame construction nylon
frame color Black
dimensions 43 3/4"H x 29 1/2"W x 28"D
chair back style mid-back
back cushion height 20 4/5
multiple adjustments yes
adjustable seat height pneumatic/1-touch
adjustable height range 37 1/2" - 43 3/4"
adjustable tilt tension yes
tilt lock yes
adjustable seat back depth yes
synchro tilt yes
adjustable forward tilt no
adjustable tilt angle yes
adjustable knee tilt no
adjustable back angle yes
adjustable back height yes
lumbar support yes
seat glide yes
waterfall seat cushion yes
adjustable headrest no
arms yes
adjustable arm height yes
adjustable arm width yes
meets/exceeds ANSI/BIFMA standards yes
weight capacity 250 lb
assembly required yes
warranty length 10-yr limited
style name Quantum
brand name Realspace
distributor Swinton Avenue Trading Ltd., Inc.
Ecolabel GREENGUARD certified
postconsumer recycled content 55%
total recycled content 55%

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Realspace� PRO Quantum 9000 Series Ergonomic Mesh Mid-Back Chair, Black 4.3 5 254 254
Best Chair I've had This is the second time I buy this chair. The first one is still intact after 3.5 years and a transatlantic move. I was hard to leave behind. When it came down to buy a new one in another place I went through a few models just to make sure there was nothing else that came out new / better... but obviously not. Breathable, comfortable, durable. Awesome... September 15, 2014
Fantastic Chair This chair is very comfortable for sitting long periods of time, and very adjustable. It compares to very expensive ergonomic chairs for a much more reasonable price. I highly recommend it! Only complaint is that the arm rests don't stay in place - they flip back and forth - but overall not a big problem. September 15, 2014
Just what I needed Great chair. Fits me comfortably. Eliminated my back problems from sitting too long at my computer. September 3, 2014
Quantum 9000 chair I love this chair so much that I purchased this one and had it delivered to my daughter for her to use in her office at Creighton University. August 25, 2014
2 3 4 5 ... 64 next>>

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(69 Qs�:�100 As)

Product Q&A

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Gender:�Female
Age:�55 to 64
1 year, 8 months ago
Customer avatar
by
designer
san francisco
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Answer:�
Yes, it absoutely can. I just removed the arms with a little allen wrench. I left the little rubber caps on it so as to not knock my shins on the metal holders which sit just outside the seat of the chair. Just use the screws that would normally hold the arm piece onto the brace that comes from the main assembly under the seat of the chair. This makes a good product into a great product!!
Gender:�Female
Age:�45 to 54
10 months ago
Customer avatar
by
Wonder
Minnesota
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Answer:�
definitely so.
Gender:�Male
Age:�55 to 64
1 year, 6 months ago
Customer avatar
by
daser9
Atlanta, GA, USA
+2points
2out of 2found this answer helpful.
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Answer:�
yes you can assemble the chair without the arms. But you may not have too. The arms adjust up and down so they will clear your desk. Also they adjust in towards your body for easier typing
Gender:�Female
Age:�45 to 54
1 year, 7 months ago
Customer avatar
by
workinggirl1
PA
+2points
2out of 2found this answer helpful.
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Answer:�
Yes.
Gender:�Male
1 year, 7 months ago
Customer avatar
by
MrAnalogy
SW Virginia
+2points
2out of 2found this answer helpful.
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Answer:�
Yes. The arms are separate pieces and not integral to the core frame. None of the adjustment mechanisms are attached to them either.
Gender:�Female
Age:�35 to 44
1 year, 7 months ago
Customer avatar
by
jwis
Tampa, FL
+1point
1out of 1found this answer helpful.
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Answer:�
NO they are a part of the frame.
Gender:�Female
Age:�35 to 44
1 year, 8 months ago
Customer avatar
by
Jennimactx
Fort Worth, TX, USA
-6points
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Best answer
Answer:�
Thank you for your question!

Yes, this chair can be assembled and used without the arms.
Best wishes.
Gender:�Female
Age:�45 to 54
1 year, 8 months ago
Customer avatar
by
Realspace Product Support
Corporate HQ, Boca Raton, FL 33496
+3points
3out of 3found this answer helpful.
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I need to know about the Realspace PRO Quantum chair.
Thanks.
Gender:�Female
1 year, 8 months ago
Customer avatar
by
dal
Los Angeles, CA, USA
0points
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Answer:�
This chair is fully adjustable and will fit anyone from 5 feet 0 to 6 feet 3.
Very sturdy chair. Good if want Back comfort for sitting at extended periods of time. hope this Helps
Gender:�Male
Age:�45 to 54
1 year, 6 months ago
Customer avatar
by
saspgmer
Sanford, FL, USA
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Answer:�
No. It is very adjustable. Seat up and down. Back forwards and backwards. Armrests up and down and in and out. Back locks or reclines.
Gender:�Female
Age:�35 to 44
1 year, 7 months ago
Customer avatar
by
pandaz36
Gainesville, GA, USA
0points
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Answer:�
I'm 5' 9" , 160# and it works great for me. I can be sized larger as well, so I think you'd be fine with it at your height.
Gender:�Male
1 year, 7 months ago
Customer avatar
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MrAnalogy
SW Virginia
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Answer:�
This chair would work really well for you. It has a great height adjustment, my 6'4 husband uses it comfortably as well. I am 5'8 and 200.
Gender:�Female
Age:�35 to 44
1 year, 8 months ago
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Jennimactx
Fort Worth, TX, USA
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Answer:�
Thank you for your question!
The RealspacePRO Quantum/9000 chair is designed and manufactured to support body weight up to 250 pounds.

To help gauge fit based on your height, we recommend visiting a store and sitting in the chair. Take a few minutes to work the adjustment features also (especially chair height, seat back height & angle, lumbar support, and chair arm height & width). That way you can best determine if the adjustability ranges fit your body.

Best wishes!
Gender:�Female
Age:�45 to 54
1 year, 8 months ago
Customer avatar
by
Realspace Product Support
Corporate HQ, Boca Raton, FL 33496
0points
0out of 0found this answer helpful.
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1 year, 9 months ago
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by
Scooter
0points
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Answer:�
if the issue consists of back's height adjustment: click it up all the way - it will come down so you can take it up again to where you want it
Gender:�Male
Age:�55 to 64
1 year, 6 months ago
Customer avatar
by
daser9
Atlanta, GA, USA
0points
2out of 4found this answer helpful.
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Answer:�
The back adjust very easily. Bring it all the way up to release it. Then you can move it down all the way and slowly click it into any spot that you need. To start over raise it all the way and bring it all the way down again.
Gender:�Female
Age:�45 to 54
1 year, 7 months ago
Customer avatar
by
workinggirl1
PA
+2points
2out of 2found this answer helpful.
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Best answer
Answer:�
Yes it does, it moves up 5 clicks and the lumbar support is very comfortable!
Gender:�Female
Age:�35 to 44
1 year, 8 months ago
Customer avatar
by
Jennimactx
Fort Worth, TX, USA
+3points
3out of 3found this answer helpful.
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Answer:�
YOu should be able to lift up the back of the chair to adjust the height.
1 year, 8 months ago
Customer avatar
by
Janie
NYC
-2points
0out of 2found this answer helpful.
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I noticed while testing this chair in the store several months ago that when I sat down or got up from the chair, just brushing against the back of it with my back impacted the ratcheted height. Did you ever install a knob to lock the back position in place or is there a way to adjust the ratchet system so it's not so sensitive? Having to constantly readjust the back height would be a bothersome.
Gender:�Male
Age:�55 to 64
1 year, 5 months ago
Customer avatar
by
Tester
Atlanta, GA, USA
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Answer:�
I just bought this chair and am having the same problem. When I move around or get up, the back moves up, which unlocks it, and then it falls down to the lowest position. I am constantly having to raise it back up.

I am tall (6' 2") so I like the back in the highest position--the 5th click up. Which is another problem: I can't simply slide the back all the way up to adjust it, because all the way up is the release position and it slides back down. Instead, I have to carefully count 1-2-3-4-5 clicks to get it to the 5th position. This wouldn't be so bad if I didn't have to do this every time I got up and sat back down.

Hopefully there's a trick--or the manufacturer can come up with a better way to lock the back in place.
Gender:�Male
Age:�55 to 64
1 year ago
Customer avatar
by
radiodave
Guerneville, CA, USA
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Best answer
Top 50 Contributor
Top 50 Contributor
Answer:�
No - it just slides up and down - not a good feature. I returned it for that reason.
Gender:�Female
Age:�65 or over
1 year, 4 months ago
Customer avatar
by
Daurie
Borrego Springs, CA
+1point
1out of 1found this answer helpful.
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Answer:�
Thanks for your question.
The chair back typically stays firmly in place while seated.

One idea is that you may need a bigger or more heavy duty chair.

The Quantum chair supports body weight up to 250 pounds.
If you weigh more, you will be more comfortable and supported in a big & tall chair.
Gender:�Female
Age:�45 to 54
1 year, 4 months ago
Customer avatar
by
Realspace Product Support
Corporate HQ, Boca Raton, FL 33496
-1point
2out of 5found this answer helpful.
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Gender:�Female
Age:�55 to 64
1 year, 5 months ago
Customer avatar
by
Chatty
Houston, TX, USA
0points
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Answer:�
I'm 6' 3", 280lbs. I own and use this chair often. It's reasonably comfortable and will easily hold the weight.
Gender:�Male
Age:�55 to 64
1 year, 1 month ago
Customer avatar
by
Jim
+1point
1out of 1found this answer helpful.
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Answer:�
Your height is fine. The seat will slide back and forward to accomodate your height. And of course it'll raise and lower.
I'm 6'1", 200# and the chair fits me just about perfectly. It's got a tag that says it's only good up to 250#. I think you'd find it too thin across and the fact it's just a mesh seat, not firm with foam would probably be a problem for weights over 250#.
Gender:�Male
Age:�35 to 44
1 year, 4 months ago
Customer avatar
by
Sloopy
Florida
-1point
0out of 1found this answer helpful.
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Best answer
Answer:�
Thank you for your question!

This chair supports body weight up to 250 pounds.
We would recommend a big & tall chair for a body weight of 275 pounds.

There are a few upholstered options in our Thomasvile Style@work offer.

If you like Mesh, you might like one of these....
Item # 271230
Item # 399940
Item # 399945

A big & tall chair will fit your body dimensions and weight more comfortably and give it the support it needs throughout the work day!
Gender:�Female
Age:�45 to 54
1 year, 4 months ago
Customer avatar
by
Realspace Product Support
Corporate HQ, Boca Raton, FL 33496
+1point
1out of 1found this answer helpful.
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back rest does not lock into position, keeps sliding down to lowest level
Gender:�Male
Age:�55 to 64
1 year, 5 months ago
Customer avatar
by
brutus
Florida
0points
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Best answer
Answer:�
If you raise the back up slowly, stopping every time you hit it click (lock in position), it will stay at that height. I think there are only five clicks (or positions) til you get to the top. If you go too high, once released the back will return to the lowest position.
Gender:�Female
Age:�35 to 44
3 months, 2 weeks ago
Customer avatar
by
da1nonly
Tracy, CA, USA
+1point
1out of 1found this answer helpful.
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Top 50 Contributor
Top 50 Contributor
Answer:�
Mine too! I finally just returned it!
Gender:�Female
Age:�65 or over
1 year, 4 months ago
Customer avatar
by
Daurie
Borrego Springs, CA
0points
0out of 0found this answer helpful.
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Answer:�
Please call our product support line for help with this issue.
Thank you so much!

1-800-949-9974
Gender:�Female
Age:�45 to 54
1 year, 4 months ago
Customer avatar
by
Realspace Product Support
Corporate HQ, Boca Raton, FL 33496
0points
0out of 0found this answer helpful.
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3 answers

Tilt adjustment?

Can I adjust the back tilt and seat tilt independently? Also, are both infinitely adjustable or are there only a few fixed tilts?
I tried one in the store (without any directions) and it seemed that both tilted at the same time, so I couldn't tilt the back without tilting the seat, etc. Also, I could only get it to lock in a few positions--level, and tilted back.
Gender:�Male
Age:�55 to 64
1 year ago
Customer avatar
by
The IT guy
Guerneville, CA, USA
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Answer:�
Realspace Product Support:
Thank you for the quick answer. I bought the chair but I can't get the back tilt to infinitely adjust. When I loosen the Tilt Lockout handle, the back does tilt to any position. But when I lock it, it snaps in one of only three positions. Am I doing something wrong or is that the way it is designed?
Gender:�Male
Age:�55 to 64
1 year ago
Customer avatar
by
radiodave
Guerneville, CA, USA
0points
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Answer:�
I just bought this chair so I can now answer my own question, for the benefit of anyone interested:
Unfortunately, the back and seat do not tilt independently. The "synchro tilt" feature means the seat tilts back a little as the back tilts back. Worse, there are only 3 positions: back near vertical, back slightly tilted back, and back tilted way back. (With seat tilting at the same time). If one of the first two positions fits you, it's great. But if you need a slightly different position for the best ergonomic fit, you are out of luck.
Gender:�Male
Age:�55 to 64
1 year ago
Customer avatar
by
radiodave
Guerneville, CA, USA
0points
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Answer:�
The back and seat do not tilt independently but it is a true infinity lock, that allows you to lock in the position of choice and amount of tilt for the seat.
Gender:�Female
Age:�25 to 34
1 year ago
Customer avatar
by
Realspace Product Support
Corporate HQ, Boca Raton, FL 33496
0points
0out of 0found this answer helpful.
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Gender:�Female
Age:�55 to 64
1 year, 8 months ago
Customer avatar
by
K
Conway, AR, USA
0points
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Answer:�
Go online at Office Depot and find this product. There is a video that explains and demonstrates the multiple adjustments.
Gender:�Female
Age:�55 to 64
1 year, 7 months ago
Customer avatar
by
JunellS
Florida
+1point
2out of 3found this answer helpful.
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Best answer
Answer:�
We're happy to help.
You can create a personalized fit
for the Realspace PRO Quantum/9000 chair
by reading pages 12-18 in your assembly guide.

If your guide is missing, you can click on the
assembly instructions icon on the selling page
using the link/path below.

http://www.officedepot.com/catalog/search.do?Ntt=Quantum

The icon sits under the price and selling availability information for Item # 510830.
All RealspacePRO Quantum Mid-Back Task chairs
(in various colors) adjust the same way.

We recommend saving the guide on your phone, tablet or
laptop to keep as a reference guide.

Best wishes.
Gender:�Female
Age:�45 to 54
1 year, 8 months ago
Customer avatar
by
Realspace Product Support
Corporate HQ, Boca Raton, FL 33496
+2points
3out of 4found this answer helpful.
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Gender:�Male
Age:�45 to 54
1 year, 8 months ago
Customer avatar
by
CM
Frisco, TX, USA
0points
0out of 0found this question helpful.
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Answer:�
I tried to order a headrest and was told that I can not order a headrest for this chair. I was told that I would need to replace the entire seat back with a new one that has a headrest on it.
Gender:�Female
1 year, 4 months ago
Customer avatar
by
hawkeye
Houston, TX, USA
0points
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Best answer
Answer:�
Thank you for your question.

You can add a headrest by ordering it from the manufacturer. Please call 800-637-0005, extension 5401

Best wishes.
Gender:�Female
Age:�45 to 54
1 year, 5 months ago
Customer avatar
by
Realspace Product Support
Corporate HQ, Boca Raton, FL 33496
+3points
4out of 5found this answer helpful.
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According to the CPSC website, the Quantum Realspace PRO? 9000 Series Mid-Back Multifunction Mesh Chair, SKU # 510830 was recalled because the bolts attaching the seatback on the chair can loosen and detach, posing a fall and injury hazard to consumers.

I'm wondering if this is the same chair, or if they have fixed the design flaw?

Thanks!
1 year, 5 months ago
Customer avatar
by
JP
0points
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Answer:�
While this is the same chair and model, the flaw has been repaired and only applied to chairs manufactured from May 2006 through August 2009. You can check your chair's date of manufacture by looking at the label under the seat cushion near the front on the label showing manufacture date, manufacturer's model ID and says QUANTUM. If the date falls into the recall range, contact Office Depot customer service.
Age:�55 to 64
1 year, 5 months ago
Customer avatar
by
ChiefO
Canby, OR 97013, USA
+2points
2out of 2found this answer helpful.
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Best answer
Answer:�
Thank you for your question.

Yes. The manufacturer, in cooperation with Office Depot, initiated a voluntary recall in October of 2009. As a result, the chair was enhanced. Presently, the Quantum Realspace PRO? 9000 Series Mid-Back Multifunction Mesh Chair, Item 510830, sold by Office Depot is the manufacturer's new design.

Best wishes.
Gender:�Female
Age:�45 to 54
1 year, 5 months ago
Customer avatar
by
Realspace Product Support
Corporate HQ, Boca Raton, FL 33496
+2points
2out of 2found this answer helpful.
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