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Chiroform Ultra Mid Back Heavy Duty Drafting Chair by Allseating

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The Chiroform Ultra Mid Back Heavy Duty Drafting Chair is a great big and tall drafting chair and heavy duty high height office chair. It combines high quality with comfort and an ergonomically contoured backrest, with a 325 lb weight capacity. It offers all of the comfort and support that the Chiroform Ultra series offers, but in a drafting chair form.

SKU: ALL-S-960

Ships In: 5 Business Days
MSRP: $593.00

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MSRP: $593.00


The Chiroform Ultra Stool is a  great big and tall stool and heavy duty work stool.  It combines high quality with comfort and an ergonomically contoured backrest. The Chiroform Ultra Stool brings the ergonomics and comfort of the Chiroform Ultra chair to your stool application requirements. The Chiroform Ultra Ergonomic Stools are also great as big and tall and heavy duty stools - weight rated to 325 lbs and encompassing dimensions for any application.  A high quality heavy dity drafting chair and heavy duty office stool alike.

Control Options:

  • Basic Stool - Only Seat Height Adjustment
  • Posture Back - Posture Back Adjustment (Click here for more info) features seat height adjustment as well as back angle adjustment, however the back cannot lock in a reclined position.  

Arm Options:

  • Task 3 Arms - Only Height Adjustable 4" 
  • 4 Dimensional Arms - height Adjustable 4" and 4" width adjustment; armpad pivots and slides side to side and front to back (Click here for more info)
  • Twister Arms - 4 Dimensional Arms plus armpad twists 360 degrees.

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


Additional Information

Manufacturer Allseating
  • Ergonomic
  • Double Curve Back
  • Seat Height Adjustment
  • Dual Molded Foam Seat
Product Video No
Supplier No
Lead Time 5 Business Days
Assembly Required Yes
Arms Adjustable
Meets or Exceeds ANSI/BIFMA Standards Yes
Overall Dimensions 24.5"W x 38.5" - 46"H x 19"D
Seat Dimensions 18.5"-26"H x 21"W x 19"D
Sit Duration 8
Weight Capacity 325 lbs.

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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.

Allseating products, including those designated for Multi-Shift, are warranted to be free from defects in materials and workmanship for a period of 10 years from original date of purchase.

This warranty applies to all chair models. During the warranty period, Allseating, at its sole discretion, will repair or replace (at its option) any product, part or component covered by this warranty that fails under normal use due to defective materials or workmanship. Allseating will repair or replace the defective product, part or component with comparable product, part or component. To be eligible for this warranty coverage, all products, parts or components must be installed, used and maintained in accordance with Allseating’s published instructions and must not have been subject to misuse or abuse.

Allseating does not warrant the following:
normal wear and tear
natural variations, scars, marks or wrinkles occurring in leather
Colourfastness of textiles
Colour matching of textiles exactly to samples or swatches or past purchases
Products exposed to extreme environmental conditions or improper storage conditions
Chairs used by individuals who weigh in excess of 325lbs.(excludes Chiroform Heavy Duty)