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Office Master DB78 Discovery Extra Large Back Ergonomic Task Chair

  • $439.00
  • Ships within 5-7 business days

  • Customizations Total: $0.00

    Perfectly suited for users of large statures.

    The Office Master DB78 discovery extra large back chair was designed to specifically address users seeking to promote a healthier seating posture. The unique "Pear-Shaped" design of the backrest permits a seated user's shoulder blades to travel more fully rearward when leaning back.

    All DB Series models upholstered in comfortknit feature an elegant fabric panel back that is upholstered in a super-durable, high double rub fabric.


    • Rated for 300 lbs max. weight capacity
    • Ideal for ergonomic situations or environments with heavy presence of side-to-side tasking (i.e., nursing stations)                          
    • Supremely comfortable ergonomic backrest shape allows for full back "stretch" and avoidance of scapular impedance                       
    • Incorporates proprietary DCS Technology


      • Pneumatic lift
      • Infinitely locking seat tilt
      • Infinitely locking back tilt
      • Forward tilting adjustment
      • Easy back height adjustment
      • Rocking tension adjustment
      • Fabric panel back standard
      • Seat slider (seat depth adjustment)
      • Memory Foam layer (1") in backrest
      • Double Comfort Seating (DCS) Memory Foam seat

      Optional equipment available includes a wide variety of Arms, Cylinder, Casters and Fire Barrier Upholstery. See below for more detailed information.

      A wide variety of 5 fabric grades as well as leather available with 429 total color options.
      See link to Fabric and Color pdf below:

      View Fabric & Color Swatches (PDF)


      • Seat Height Range: 18" - 23"
      • Back Dimensions: 11" x 22" w x 25" h
      • Seat Dimensions: 22" w x 18"-21" d
      • Overall Width: 27"
      • Overall Height: 43-52"
      • 12 year Limited Warranty 
      Suggested Arm Options:

      View All Other Available Arm Options (PDF)



      • 5" Black - Seat height range: 18-23" (standard)
      • 5" Chrome - Seat height range: 18-23"
      • 5" Black Heavy Duty - Seat height range: 18-23"
      • 4" Heavy Duty - Seat height range: 17-21"
      • 6" Black Heavy Duty - Seat height range: 20-26"

      Memory Foam:

      • Back: Basic UPHMF - Memory foam upholstery layer (1") added for increased comfort.
      • Seat: Deluxe DCS-S - Double Comfort Seating (DCS) Technology - A comfort-layer of viscoelastic (memory) foam molded over OM high-resilience support foam for sigh-producing, long-lasting comfort.

      Fire Barrier:

      • Upholstery with fire barrier to meet CA-TB 133 fire code.

      View Fabric & Color Swatches (PDF)

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