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Office Master DB78 Discovery Extra Large Back Ergonomic Task Chair

  • $453.70
  • Ships within 7-10 business days

  • Customizations Total: $0.00

    The Office Master DB78 Discovery Back Extra-Large chair is built for large stature users and designed to specifically address those seeking to promote a healthier seating posture. The unique "Pear-Shaped" design of the DCS Memory Foam backrest permits a seated user's shoulder blades to travel more fully rearward when leaning back preventing scapular impedance. Matching DCS Memory Foam Seat cushion included.

    DB78 features a multi-function control mechanism that includes seat depth adjustment (seat slider), infinitely locking back tilt, infinitely locking seat tilt, easy back height adjustment and rocking tension adjustment.

    Discovery chairs are deal for ergonomic situations or environments with heavy presence of side-to-side tasking (i.e., nursing stations).


    • 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

      Options available include a wide variety of Arms, Casters, Cylinders, 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. All DB Series models upholstered in Grade 5 Comfortknit feature an elegant fabric panel back that is upholstered in a super-durable, high double rub fabric. See link to complete 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 (standard):

      • 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.

      Fabric Panel Back (standard):

      • Matching fabric applied onto outer back shell.

      Fire Barrier (optional):

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

      View Fabric & Color Swatches (PDF)

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