Our Story
Since its founding in 2007, Design Theory 19 has evolved from a retail design store in downtown Wausau, Wisconsin, into a multidisciplinary interior design firm. This growth has allowed the team to engage in a wide range of Residential, Commercial, Senior Living, Dental, Healthcare, and Hospitality projects.
At the core of Design Theory’s philosophy is a focus on the fundamentals of architecture and interior design. With over a decade of experience in projects of all sizes, the firm crafts distinctive spaces that emphasize how clients experience and interpret visual information. Design Theory 19 separates ideas and style, taste and trends, from the universal principles of aesthetics that resonate with everyone. In addition to offering full-service design, the firm continues its retail roots by providing a curated selection of home furnishings and accessories. Embracing an open-door policy, Design Theory 19 welcomes clients and community members alike to explore its retail space and connect with designers in a collaborative, inviting environment.
Check out this link for more interior design history.
Mindy is the Principal Designer and Owner of Design Theory 19, formerly known as Inner Piece Interiors which was established in 2007. For years, Mindy has approached each project as an opportunity to create a unique and thoughtful relationship with the owners as well as creating spaces that lead to unexpected moments in one’s home or business.
With a degree in Interior Architecture, Mindy is able to comprehend the construction of spaces as well as having the ability to offer solutions for better flow and aesthetics throughout one’s home. Also creating concepts for work environments which involves processes for employee retainment, branding, universal design or biophilic design.
In 2013, Mindy started with Inner Piece Interiors working on residential projects. Over time, she introduced new opportunities with Commercial, Healthcare, Senior Living, Worship and Dental projects to name a few. After purchasing the company in 2019, Mindy is excited for her next chapter. Rebranding the company to express her personal passion in creating spaces inspired by our clients and how they live their lives as well as how they are growing their business in our community. Being a part of their story is an opportunity she does not take for granted.
Andrew Kluck is an Interior Designer for Design Theory 19. Andrew Graduated from UW-Stevens Point with a Bachelor of Fine Arts in Interior Architecture.
Andrew started as an intern and was hired as a Design Assistant before joining the company full time as an Interior Designer in 2021 after completing his degree. Design isn’t just about the look of the end product. It is about the feel, functionality, and durability. Creating a design that enhances the end users use of the space and life, is a goal he strives to achieve every day.
To further enhance his career and skills, Andrew spent a semester abroad in London working for a hospitality firm. He aided senior designers in CAD drawings, material selections, 3D renderings, and presentation items. Working in a different country made him adapt to new codes and requirements for designing as well as assess what different cultures deem important in their lives.
In his free time, Andrew enjoys designing and building furniture. Thus far he has built a dresser, nightstand, desk, side table, and two bar cabinets.
Grace Michalske graduated from the University of Wisconsin–Stevens Point with a Bachelor of Fine Arts in Interior Architecture and a minor in Business Administration, joining Design Theory 19 in June 2025.
A former collegiate athlete, Grace brings the same dedication, teamwork, and drive into her design practice. She is passionate about creating warm, inviting spaces that balance modern design with natural textures and light. With a keen eye for detail and a love for personalized touches, Grace enjoys helping clients bring their vision to life in a way that feels both inspiring and comfortable.
Outside of interior design, Grace enjoys spending time with family and friends, traveling, watching and coaching volleyball, and is always on the lookout for a fun new coffee shop to explore.
Jayden Meffert is a recent graduate from UW-Stevens Point with a Bachelor of Fine Arts in Interior Architecture and a minor in Business Administration. Jayden joined Design Theory 19 as a Junior Interior Designer just before graduation in May 2025.
With a strong foundation in both design principles and evidence-based design, Jayden is dedicated to creating thoughtful, functional environments that align with client goals. Jayden places a strong emphasis on designing for safety, well-being, and accessibility, understanding that these elements are crucial to enhancing the overall user experience. By integrating evidence-based design practices, Jayden strives to craft spaces that not only reflect the client’s aesthetic vision but also promote comfort, health, and productivity. Her approach ensures that every project is tailored to support the physical and emotional needs of its users while meeting practical and strategic objectives.
Outside of the office, Jayden enjoys unwinding by watching movies or tv shows (she also appreciates any recommendations). Jayden has a passion for thrifting and repurposing old furniture and clothing, finding creative ways to give new life to forgotten pieces. When Wisconsin blesses us with good weather, you’ll most likely find Jayden soaking up the outdoors. Whether she's exploring, relaxing in the sun, or just finding any excuse to be outside.