• An Innovative Interior for Every Environment

    Commercial Office, Home Office, Healthcare, Education and Recreational Facilities we offer fully integrated solutions.

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  • Flexible, durable furnishings that help people work more efficiently

    Commercial Office, Home Office, Healthcare, Education and Recreational Facilities we offer fully integrated solutions.

    LEARN MORE

  • An Innovative Interior for Every Environment

    Commercial Office, Home Office, Healthcare, Education and Recreational Facilities we offer fully integrated solutions.

    LEARN MORE

  • Flexible, durable furnishings that help people work more efficiently

    Commercial Office, Home Office, Healthcare, Education and Recreational Facilities we offer fully integrated solutions.

    LEARN MORE

What We Believe In

Grow your business, establish your brand, and put your customers first.

Who We Are

Dumanski Office Interiors (DOI) is a full-service office furniture dealer and design company. In our 7000 sq. ft facility, we represent leading manufacturers such as Herman Miller, Nightingale, Three H Manufacturing, Groupe Lacasse and more.


Our best resource is our people, many of whom have been with us from the beginning and are all highly trained to offer our clients the best solutions for office efficiency, productivity and cost. We also utilize the latest in Auto-Cad and design computer tools to prepare professional designs that help our clients visualize the solutions we propose.

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What We Do

Let our design team, take care of all your interior design needs. From initial AutoCad layouts to your complete 3-D drawings to a complete itemized sales list we'll cover all the details. Give us a call and we'll prepare a custom layout in no time.


We plan and execute every stage of the installation process from beginning to end. Our installation experts will not leave the site until every last detail is satisfactory to our customers.

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Company News

Herman Miller's Aeron 2 ergonomic chair viewed at modern office desk

CNN: Aeron Named One of the 12 Best Designs from the Past 100 Years

By Jeremy Henderson • June 28, 2013
In celebration of World Industrial Design Day (2013), CNN featured the top 12 most iconic designs from the past 100 years. Herman Miller's Aeron chair made the list! "George McCain, chairman of the Industrial Designers Society of America (IDSA) opted for the Aeron Chair. The design classic by Herman Miller "has become ubiquitous in all 'hip' offices," says McCain. "It instigated a sea change in office seating away from heavy, uncomfortable, ergonomically challenged and environmentally unfriendly chairs."
front and back views of the Mirra 2 chair by Herman Miller

Mirra 2 Performance Redesigned

By Jeremy Henderson • May 6, 2013
Mirra 2 is Herman Miller's successor to the widely popular Mirra chair. Redesigned from the ground up, this high performance task chair will surely delight both your eyes and body. Designed by Studio 7.5–the group behind theh original Mirra and Setu chairs–they have reimagined, re-examined and redesigned Mirra into a simply astonishing task chair. Give us a call or send us an email to take Mirra 2 on trial (Sault Ste. Marie and area only)... you'll be glad you did! Read about Studio 7.5's Mirra 2 story here .
Herman Miller's Embody chair shown at an office desk

Herman Miller's Embody Chair Receives FX International Interior Design Award

By Jeremy Henderson • December 7, 2009
The Embody chair has been recognized with the International Interior Design award in the Best Workplace Seating category from FX magazine, a leading design publication based in the United Kingdom. The FX awards were created in 1999 and acknowledge the best in international product and project design. Award recipients were announced at a prestigious awards ceremony held at The Grosvenor House Hotel in London. The awards were judged by an international panel of distinguished experts from the industry, including designers, ergonomists, and senior architects. Judges admired Embody for its "indisputable comfort and health benefits" and "distinctive design." Embody is a high performance, ergonomic task chair designed by Jeff Weber and the late Bill Stumpf. It is sympathetic to the human form and the body's natural movement and it fits all users through its adaptive design and intuitive adjustment controls. Click here to learn more about the Embody chair.
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