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OM Seating  |  SKU: MX85IU

Office Master Maxwell Heavy Duty Big Build Stool | MX85IU

$954.85

The Office Master Maxwell MX85IU Heavy Duty Big Build Stool is built for intensive use and larger users who need dependable, long-lasting support. With a 450 lb weight rating, a 24-inch wide seat, and a slim profile that doesn’t feel bulky, it delivers steady comfort in demanding work environments.

Highlights

  • Weight capacity and seating: 450 lbs weight rating with a 24" wide seat cushion for generous, stable comfort during long tasks.
  • Robust construction: heavy-duty components, oversize Grande Spider Package, and a slim silhouette that reduces bulk without compromising support.
  • Adjustability and ergonomics: pneumatic lift, tilting backrest, EZ back height adjustment, rocking tilt, tension knob, and seat depth adjustment for a personalized fit.
  • Height range: 6" Super HD cylinder to accommodate a wide range of user heights and desk setups.
  • Back and seat design: fabric panel back with trim wide-back design for breathable, supportive seating.
  • Mobility options: standard glides included; casters available as an upgrade to suit different flooring and workspace needs.

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Dimensions

Model/Sku Office Master MX85IU
Overall Width 32"
Overall Height 49.5-59.5"
Back 23.5"w x 20"h
Seat 24"w x 18-20.5"d
Seat Height 28-34.5"
Carton Weight 57 (box 1),18.2 (box 2)
Warranty 7 year limited
Chair measurements are approximate and are based on switching cylinder heights on otherwise the same chair, with the same base and casters. Arm dimensions are approximate as actual measurements will vary depending on a variety of factors: cushion contour(s), seat upholstery, memory foam, etc.

Downloads

Warranty

Office Master, Inc. (OM) warrants to the original purchaser that its products are free from defects in materials and workmanship for the applicable warranty period, as indicated below. 

Should any item fail, OM will – at its sole discretion – repair or replace, with a comparable product or part, any item found to be defective as a result of normal commercial use (i.e., a single 8-hour shift, 5 days per week).

This warranty does not apply to items subjected to abuse, misuse, neglect, alteration, or damage caused by shipment, storage, accident, fire, flood, or act of God.

Note: the actual warranty terms are specified on the chair product page. 

lifetime limited warranty:

The OM5 Series® (including the OM5 Active sub-series), Truly.® Series, and Ginny are covered by a lifetime limited warranty on all structural components as defined below.

12-year limited warranty:

Unless otherwise specified, all models not classified as budget or 24/7 or heavy-duty are covered under a 12-year limited warranty on all structural components as defined below.

7-year limited warranty:

Unless otherwise specified, all models classified as budget or 24/7 or heavy-duty or bariatric are covered under a 7-year limited warranty on all structural components as defined below. Budget series include: BC, SG, ST, and WS. Bariatric series includes: GY4B-26 and GY4B-30.

warranty terms:

Within a given model’s applicable warranty period, all structural components, including gas cylinders, wood, metal and plastic parts (i.e., chair frames, bases and control handles) are guaranteed against structural failure when under normal commercial use. All OM seating comes with a default 275 lbs. weight capacity limit unless otherwise specified by OM. 

For all models, consumable items (i.e., casters, glides, etc.) are covered by a 5-year normal commercial use warranty.

fabrics and foam:

OM in-stock upholstery & foam cushions are covered by a 5-year normal commercial use warranty. Normal wear and tear on fabrics such as wrinkling, dirt accumulation or gathering is not covered. This includes Truly.® Series “Jackets” and “Wraps”. Natural, minor variations may exist in color, surface, grain or texture of upholstery materials. As a result, any such variations are not warranted. COM/COL and graded-in fabrics are not covered.

warranty labor:

This warranty exclusively covers the repair or replacement of OM parts as determined by OM and does NOT cover any portion of field labor or service and does NOT cover any portion of field labor or service. For information regarding OM’s non-warranty shop time and related charges, please reference a current copy of OM’s pricebook, in the Terms and Conditions section.

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