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Picture of Semicircle Corner Sleeve
  • Picture of Semicircle Corner Sleeve
  • Picture of Semicircle Corner Sleeve
  • Picture of Semicircle Corner Sleeve

Semicircle Corner Sleeve

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Item #: HSDE2
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Semicircle by Humanscale

The Humanscale Semicircle Corner Sleeve will maximize your desk space and keyboard accessibility by turning a 90 degree desktop corner into a diagonal corner, allowing you to mount a keyboard into this space.


  • DE200 (medium size) fits desks 1-1.5" thick and DE250 (large size) fits desks 1.5-2.5" thick
  • Available in black
  • Dimensions: 16" diameter

Humanscale products are renowned for their high level of functionality. Their philosophy of design is "less is best" and that simplicity is the best route to a high level of utility. Their products demonstrate that the beauty that comes from utility provides the consumer with classically timeless forms. Each of the platform options is designed to ensure that users type and mouse within their Neutral Reach Zone, thereby encouraging safe, sustainable working postures.

Materials & Measurements

Black powder coated rolled steel

Overall: 16" diameter

About the Manufacturer

HumanscaleHumanscale's focus since its inception in 1982 has been providing outstanding ergonomic seating and accessories for the home and the office. Their products, which range from task chairs to keyboard trays to CPU holders, are all geared towards making life simpler, easier, and healthier for anyone who works at a desk. Widely recognized for their line of office seating, Humanscale has done much to advance design in some newer product areas- namely in computer and office accessories such as monitor arms, foot machines, and the ergonomic computer mouse. Winner of numerous design awards, Humanscale continues to deliver groundbreaking office tools that combine simplicity, aesthetics, and ergonomics.

Shipping & Delivery

Humanscale products come with free standard shipping for destinations within the contiguous United States.

Ergonomic accessories generally arrive within 1-2 weeks from the date of purchase. For more information, please view Smart Furniture's shipping rates, options, and delivery policies.

Product Q&A

Q: What size desks do these corner sleeves fit?
A: The DE200 (medium) fits desks 1" -1.5" thick. The DE250 (large) fits desks 1.5" - 2.5" thick.

If you have additional questions regarding Smart Furniture's policies in general, please see our FAQs page.


Humanscale offers a 15 year warranty on its Corner Sleeves.