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Allseating Chiroform Big - Heavy Duty Big and Tall Ergonomic Task Chair
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Allseating Chiroform Big - Heavy Duty Big and Tall Ergonomic Task Chair



Shipping Notice: Ships within 10-14 business days if Energy Absorbing Memory Foam Back or CAL 133 Fireproofing is selected.

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$549.00 ea.Your Price
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Product Description

Weight rated for users up to 500 lbs, the Chiroform 99111 Big Series is an ideal tasking solution with Memory Foam standard on the seat and optional on the back for extra comfort. The extra wide seat and backrest are accommodating for any size user as well.

The Chiroform Big features a solid metal mechanism and heavy duty construction, and includes features such as back angle adjustment, back height adjustment, seat height adjustment, tilt lock and tilt tension control, and forward seat tilt lock. Heavy duty height adjustable loop arms are optional. Rated weighted up to 500 lbs, ideal for Big and Tall, Heavy Duty, Bariatric capability.


  • Big Seat and Back
  • Rated for users up to 500 lbs.
  • Heavy Duty Ergonomic Mechanism
  • Optional Heavy Duty Arms
  • High-back available in Optional Memory Foam Padding.

Detailed Specs

Assembly: yes
Weight Capacity: 500 lbs
Sit Duration: 8 hours
Meets or exceeds ANSI/BIFMA standards: yes
Dimensions: View Specs Guide
  Overall: 24"W x 41.50"-51.50"H x 20"D
  Seat: 19.50"-24.00"H x 24"W x 20"D
  Back: 22"-27"H x 21.5"W
Arms: Optional/Adjustable

Leaves Warehouse:

Within 5 Business Days
FedEx/UPS Transit Map(s) GSA PRICE QUOTE 30 DAY
30 Day Return Policy
If you are in any way dissatisfied with a product order, we will exchange it, replace it, or refund your money. Restrictions may apply. Click here to read our 30 Day Returns Guarantee.
We Accept Purchase Orders
SitBetter accepts Puchase Orders from institutions, universities, government, and corporate entities. You can email Purchase Orders to or fax to 858-408-2979. Click Here for more information.

Founded in 1982 by Gary Neil, Allseating is one of North America's leading manufacturers of office seating. Their 100,000 square foot facility in Mississauga, Ontario, Canada is home to their core product lines, the Allseating collection, and the Nowseating collection.

The Allseating collection features proprietary products that incorporate ergonomic principles, quality workmanship and an attention to detail that their award winning in-house design team consistently delivers. And when value is your priority, the Nowseating collection includes a vast range of task, conference, managerial and stackable products that meet your discerning taste, and your limited budget.

Allseating is rigorously devoted to meeting your needs. Their manufacturing system conforms to the ISO 9001:2000 standards, and their guarantee is on of the best in the industry.

Our Opinion: Allseating makes very nice chairs that are of the highest quality. They have a large variety of office chairs, ranging from the Petite Presto to the therapeutic Therapod to the stylish and comfortable Inertia. For petite chairs, great task chairs or slick mesh chairs, this is a great company. Also, their Inertia Mesh Side Chairs are our most popular side / guest chair.

$549.00 ea.Your Price
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