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Alera Merix450 Series Mid-Back Mesh Big and Tall Office Chair

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Alera® Merix450 Series Mid-Back Mesh Big and Tall Office Chair

Aesthetically stylish for superior sitting experience for users up to 450 lbs. Breathable fabric mesh back with super cushioned mesh fabric seat. Integrated lumbar support encourages ideal back posture. Removable padded armrests offer soft support. Durable, heavy-duty base with casters.


  • Arms included: Yes
  • Arm style: Padded T-Bar
  • Pneumatic seat height adjustment: Yes
  • Tilt Tension/Tilt lock: Yes
  • Seat/Back color: Black
  • Warranty: 5 Years

Product Details:

  • Product Type: Task chairs
  • Style: Contemporary
  • Base Material: Plastic
  • Armed: Yes


  • Overall: 29.125" W x 25.5" D
  • Minimum Overall Height - Top to Bottom: 39.13"
  • Maximum Overall Height - Top to Bottom: 42.75"
  • Overall Product Weight: 52.8lbs

Special Offer:

24 Issues of Better Homes and Gardens

Included with purchase ($10 value). 

Alera® Merix450 Series Mid-Back Mesh Big and Tall Office Chair

Additional Documents


Weights & Dimensions

Adjustable Seat Height

  • Minimum Seat Height: 19.625"
  • Maximum Seat Height: 23.25"

Additional Weights & Dimensions

  • Overall: 29.125" W x 25.5" D
  • Seat: 23.25" W x 20.875" D
  • Minimum Overall Height - Top to Bottom: 39.13"
  • Maximum Overall Height - Top to Bottom: 42.75"
  • Overall Product Weight: 52.8lbs


Product Type: Task chairsStyle: Contemporary
Base Material: PlasticExterior Seat Material: Fabric; Mesh
Back Height: Mid-backBig and Tall: Yes
Adjustable Height: YesTilt Control: Yes
Casters: YesArmed: Yes
  • Arm Type: T-bar; Padded
Weight Capacity: 450 


ANSI BIFMA Compliant: Yes 

About the Manufacturer

Simply Smarter Conventional wisdom holds that outfitting an office with top-quality furniture and accessories usually comes at a hefty price. But with Alera, you don't have to sacrifice the performance and style you want just because of budget constraints. Continuous production monitoring and a 100% satisfaction guarantee let you buy Alera with complete confidence in the quality of every desk, chair, bookcase and pedestal we make. And because it's priced right, you'll be pleasantly surprised at just how far your budget can go. Best of all, every Alera item is in-stock and ready for immediate delivery to help you create the perfect office today - not weeks or months from now. Raise your expectations. See why Alera is simply smarter.

All Alera office products will enclose your office with a new look with its sleek and modern style. From chairs, to desks, to storage units, and conference tables, Alera will not dissapoint. Alera is also known for being kind to the environment and using recycled material when possible. They also offer a variety of cleaning solutions to make your office furniture last and make each piece look as if it is brand new.


The Merix450 Series Mid-Back Mesh Big and Tall Office Chair is a Contemporary style product. Contemporary style bridges the gap between traditional and modern. Pieces feature simple and clean lines with smooth surfaces without any carving or adornment. You can shop for more Contemporary Office Chairs in the Office section of our site.

Alera® Merix450 Series Mid-Back Mesh Big and Tall Office Chair

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    Questions & Answers (2)


    “Hi, what are the dimensions of the chair's seat?” asked by Connie

    "Hi Connie, this chair has a seat width of 23 1/4", and a seat depth of 20 7/8"." Tyler from Wayfair


    “Hi, what is the weight limit of this office chair?” asked by Ray

    "Hi Ray, the weight limit of this office chair is 450 lbs." Tabor from Wayfair

    When you buy a Alera Merix450 Series Mid-Back Mesh Big and Tall Office Chair online from Wayfair, we make it as easy as possible for you to find out when your product will be delivered. You can check on a delivery estimate for the Alera Part #: ALEMX4517 here. If you have any questions about your purchase or any other Office Chairs product for sale our customer service representatives are available to help.Whether you just want to buy a Alera Merix450 Series Mid-Back Mesh Big and Tall Office Chair or shop for your entire home, Wayfair has a zillion things home.
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    Customer Reviews

    Tell Us What You Think!

    Tell us what you think about the Merix450 Series Mid-Back Mesh Big and Tall Office Chair. It will help us provide you with better products in the future and help your fellow Wayfair shoppers make better purchases.

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    Average Overall Rating
    (based on 16 reviews)

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    from Hilliard, OH – Verified Buyer

    This chair was purchased as a gift for a larger man working 8+ hours daily. His first comment was how sturdy it was when putting it together. There were no problems with those few steps which is a definite plus. It was received a month ago and he loves it. Primary praise is that it is cool and comfortable and sturdier than anything else he has ever tried. Very happy with the purchase and highly recommend!

    Was this helpful? Yes1 No0

    Great, but...

    from Texas – Verified Buyer

    The chair is very well-made. The only thing I really don't like about it is the height of the lumbar support is fixed. It doesn't hit me right where I need it! If you could adjust it up or down, it would be a really great chair. All told, though, it works very well and is very sturdy,

    Was this helpful? Yes1 No0

    Very good value

    from Cincinnati, OH – Verified Buyer

    Easy to put together. Only took about 20 minutes. Very comfortable. I like the mesh back that lets air pass through. Only reason I didn't give it the extra star is that it does seems difficult to move on carpet.

    Was this helpful? Yes0 No0

    Good chair no complaints

    from Allentown, PA – Verified Buyer

    I purchased this chair for a larger man in our office a few months ago, and he has been very happy with it. He says it's comfortable and sturdy.

    Was this helpful? Yes1 No0

    Love this Chair

    from Lakewood, CO – Verified Buyer

    This chair is comfortable and sturdy. I bought it for use at work and I sit sometimes up to 8 hours per day. Definitely will last.

    Was this helpful? Yes0 No0

    Affordable comfort

    from CONCORD, CA – Verified Buyer

    Very good comfort for a large man like myself. 6'5" tall and 300+ lbs. Good all day support.

    Was this helpful? Yes1 No0


    from Durham, NC – Verified Buyer

    Good quality chair for a workplace where some employees that may be over the weight threshold.

    Was this helpful? Yes1 No0


    from Fort Scott, KS – Verified Buyer

    My husband loves it. The perfect size for him. The seat is so thick and soft. Great product. Recommend it.

    Was this helpful? Yes1 No0

    Great Choice

    from United States – Verified Buyer

    Sturdy, stylish and affordable. Have seen chairs at another place made for big people that have a very high cost.This chair was a snap to put together and I'm just very happy with it. A great buy.

    Was this helpful? Yes1 No0

    Well worth the money!

    from Fargo, ND – Verified Buyer

    My husband is a big man and we have been looking for a chair that will support his weight and be comfortable at the same time. He loves this chair! He is able to push in the arms to get out and not worry about them breaking.

    Was this helpful? Yes1 No0


    OUR SKU # ALR2981

    Merix450 Series Mid-Back Mesh Big and Tall Office Chair is also sometimes listed under the following manufacturer numbers: ALEMX4517