Special Nonexistent Furniture

X3 24.5" Barstool

by Marco Maran for

Knoll ®

(View all from Knoll ®)
SKU #: KLL1020
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Meet the Designer

Knoll ® X3 24.5" Barstool

Marco Maran achieves sculptural transparency in X3, an imaginative collection suited to both home and public spaces. Pioneering technology and materials, X3 is constructed of clear polycarbonate with a Desmopan® lattice and uses a complex molding technology applied for the first time in furniture. The barstool's undulating profile and striking palette of glowing colors, punctuated by the structural grid, energize any environment. The result: a deceptively simple geometry that conveys a highly graphic effect. *This product is made to order and thus customer orders cannot be canceled once the products go into production


  • 4 white nylon glides included with the chair
  • One piece seat shell, constructed by the bi-injection of transparent polycarbonate and a Desmopan® lattice
  • Barstool does not stack
  • Sustainable design is a key component of Knoll's environmental focus. Knoll's commitment to social responsibility and a healthy environment has prompted the company to further articulate its longstanding environmental programs and, with encouragement and support from colleagues in the industry, Knoll has re-energized its focus on such ''green'' initiatives as life cycle analysis and LEED® certification. Knoll is proud to have contributed to projects that have received LEED certification from the U.S. Green Building Council.
  • The X3 Barstool is Greenguard certified
  • Each authentic Knoll product includes a certificate of authenticity
  • The frame consists of a sled base constructed of chrome-plated steel
  • Base is always polished chrome finish


Counter Height Height

  • Overall: 37" H x 21" W x 17.5" D
  • Overall Maximum Height - Top to Bottom: 38"

Bar Height Height

  • Overall: 42.5" H x 21" W x 17.5" D
  • Overall Maximum Height - Top to Bottom: 42.5"
  • Seat Height Type: Bar (27"-30"); Counter (24"-26")

Knoll ® X3 24.5" Barstool

Weights & Dimensions

Counter Height Height

  • Overall: 37" H x 21" W x 17.5" D
  • Overall Maximum Height - Top to Bottom: 38"
  • Seat Height - Floor to Seat: 24.5"

Bar Height Height

  • Overall: 42.5" H x 21" W x 17.5" D
  • Overall Maximum Height - Top to Bottom: 42.5"
  • Seat Height - Floor to Seat: 28.75"

Additional Weights & Dimensions

  • Seat Height Type: Bar (27"-30"); Counter (24"-26")


Style: ModernBack Style: Full back
Base Style: SledSeat Material: Plastic/Vinyl
Wheels Included: NoArms Included: No
Swivel: NoEco-Friendly: Yes
Footrest Included (Counter Height Height): Yes 

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The X3 24.5" Barstool is a Modern style product. Modern style is very sleek with clean lines, and generally incorporates high gloss using whites, greys, and blacks. A focus on geometry and angular shapes is a hallmark of modern design. Glass and leather are also seen a lot with modern style. You can shop for more Modern Patio Bar Stools in the Outdoor section of our site.

Knoll ® X3 24.5" Barstool

When you buy a Knoll ® X3 24.5" Barstool online from AllModern, we make it as easy as possible for you to find out when your product will be delivered. You can check on a delivery estimate for the Knoll ® Part #: 78C here. If you have any questions about your purchase or any other Modern Designers product for sale our customer service representatives are available to help.Whether you just want to buy a Knoll ® X3 24.5" Barstool or shop for your entire home, AllModern has all of your design needs covered.

About the Designer

Marco Maran

Marco Maran Italy (1963 - )

Marco Maran was born in Siena in 1963. His work with various companies has gained him considerable recognition as a designer. He has taken part in many national and international exhibitions. His work has also been rewarded with many international prizes and awards. He received special mention at the 1994 Young and Design competition with his design Ciak. In 2003 he won the Good Design Award of Chicago with the So Happy Chair. He received first prize in 2004 with the So Happy and Nuda and Cryda Chairs at the Sidim in Montreal. In 2005 he won with the X3 chair. In 2006 he won the Good Design Award of Tokyo with the designs Ricciolina and So Happy. The Body to Body chair was selected for the Adi Design Index 2006

About the Manufacturer

With a long history of design innovation for the home, workplace, and in textiles, Knoll continues to play a large part in the foundations of Modern Design. Founded in 1938 by Hans Knoll and continued after his death by his wife Florence Knoll, the company has produced a long line of award-winning and museum worthy designs from virtually every top designer in modern design.
Note: This quality item is custom made for your order. Unfortunately, this means that orders cannot be cancelled or returned once placed, so please call our trained staff with any questions you may have prior to ordering - we will ensure that you get exactly what you need.
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from MA – Verified Buyer– Top 500 Reviewer

I did receive and am very happy with this barstool. It is working out really well for me and is the size and quality that I was expecting.

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X3 24.5" Barstool is also sometimes listed under the following manufacturer numbers: 78CH-BU-C, 78CH-CG-C, 78CH-CS-C, 78CH-GE-C, 78CH-OR-C, 78CH-SU-C, 78CM-BU-C, 78CM-CG-C, 78CM-CS-C, 78CM-GE-C, 78CM-OR-C, 78CM-SU-C