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OM Seating  |  SKU: PAC57-LS (CLS57D)

Office Master Classic Medium Build Multi Functional Ergonomic Lab Stool | PAC57-LS (CLS57D)

$404.30

The OfficeMaster PAC57-LS is a durable, adjustable ergonomic lab stool built for busy healthcare facilities and laboratories. With a fixed-height footring and a full set of posture-friendly controls, it accommodates a wide range of users—from petite to tall—for all-day comfort.

Highlights

  • Fixed-height footring: prevents footrest height adjustments during long shifts, promoting consistent seating posture.
  • Full ergonomic adjustability: back height and tilt, seat tilt, and a sliding seat to fit small and tall frames.
  • Seat depth and angle adjustment: tailor support to your leg length and task needs, reducing pressure and fatigue.
  • Pneumatic lift: smooth, reliable height changes for quick positioning at the workstation.
  • Tilting backrest with EZ back height: customizable lumbar support that adapts as you move.
  • Sliding seat: micro-adjustment to optimize leg clearance and seating comfort.
  • Wide fit for mid to large frames: designed to be broader than CLS53 for comfortable use by a range of body types.
  • Heavy duty Morgard Vinyl option: durable, easy-to-clean upholstery for demanding lab environments.
  • Grande Spider Package with dual-tone soft casters: stable base with smooth mobility on lab floors.

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Dimensions

Model/Sku Office Master PAC57-LS (formerly CLS57D)
Overall Width 27"
Overall Height 46-57"
Back 18.5"w x 19.5"h
Seat 21"w x 18.5-21.6"d
Seat Height 25-33"
Carton Weight 60 pounds
Warranty 12 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.

More information about PAC57-LS Fabric and Arms selection is available on the PAC57-LS Options Library page

Downloads

Assembly: Assembly_Instructions_Classic-Lab-Stools.pdf
Brochure: Brochure_Classic_Lab_Stools.pdf
Certificate: Certificate_Classic_Lab_Stools.pdf
Disassembly: Disassembly_Recycling_Instructions_Classic-Lab-Stools-1.pdf

General Warranty

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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