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Explore Doni Stack Chair

Doni stack chair offers unlimited design freedom and flex-back, body-conforming comfort.

Celebrate Color and Comfort

With 17 degrees of hip articulation, Doni stack chairs provide the optimal comfort expected from KI seating to encourage active movement throughout the day. Endless color options let you make a statement and create branding opportunities.


  • 4-leg, 4-leg wallsaver, 4-leg with casters, and sled base styles
  • Stack 12 high on a dolly and 6 high on the floor (chairs with ChangeUp tablets are non-stacking)
  • Ganging mechanism allows curved rows and rotates out of sight when not in use
  • 17 degrees of backrest articulation
  • Optional armrests
  • Optional ChangeUp tablet arm


  • Backrest and seat are injection-molded polypropylene joined by a pair of hidden articulation mechanisms
  • Legs are made from 7/8” OD by 13 gauge tubular steel
  • Sled side frames are made from ¾” OD by 13 gauge tubular steel
  • Black nylon glides and 50 mm double wheel high-impact casters are available

Product Highlights

Ease of Movement and Storage
Ease of Movement and Storage

4-leg and sled base chairs stack 12-high on dolly (6-high on floor). 4-leg chairs with casters stack 6-high on floor. Chairs with tablet arms do not stack. Transport dolly provides ease of movement and storage.

ChangeUp Tablet Arm
ChangeUp Tablet Arm

A generous workspace in a compact footprint, innovative ChangeUp tablet arms provide an accessible worksurface option for Doni stack chairs. Also available on Doni task chairs. Cantilever arms also available.


Ganging mechanism allows curved rows and rotates out of sight below the seat when not in use. Ganger is field installable. Available on armless models only.

Design Customization

Visualize the options for Doni stack chairs with our dynamic See It Spec It rendering tool.

Design Your Spec

CH Showroom_Doni_sled_crop.jpg


Giancarlo Piretti

Giancarlo Piretti (Bologna, Italy, 1940) is an Industrial Designer. Among his successful designs are Plia folding chair, his best-seller exhibited at Moma NY, Platone folding desk, and DSC (106-AXIS) seating system. For Vertebra chairs he obtained the Compasso d'Oro (Italy) as well as for his largest project, Piretti Collection office & institutional seating system. Other designs include Xylon wooden chairs, Torsion collection of institutional chairs; Engage & Impulse office chair lines featured by a synchro tilt mechanism Piretti developed; #18000 nesting & stacking chairs; and the Strive chair collection. The Pirouette nesting table and Grazie and Doni chairs for KI U.S. are G. Piretti's latest designs.

Inspire with Purpose
Inspire with Purpose

Experience exceptional functionality with Doni’s inspired seating designs. From chair-to-chair and space-to-space, Doni seating provides a versatile, harmonious aesthetic. This comprehensive line works anywhere – destination spaces, blended spaces, third spaces and more. In addition to stack chairs, the Doni seating family features cafe stools, guest chairs, tandem seating, and task chairs and stools.

View Family

List Price Starts At

$346 –  $1,070

Lead Time

4* Weeks

*For Doni stack chair with ChangeUp tablet arm, lead time is 5 weeks. For Doni stack chair dollies, lead time is 7 weeks.

Product Warranty


Request a Quote

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