About us

We are qualified interior designers who possess a unique skill-set,  committed to the intersection between people and their environment. We follow an inclusive design process, appreciating diversity, dismantling barriers and creating beautiful environments and products that are usable by all people.


We are Catherine Karusseit and Janri Barker. Together we share 30 years experience in design education and practice. Our areas of expertise include: interior design, inclusive design, interior construction and materials.

We met as design lecturers and went on to partner on freelance inclusive design projects. We discovered that we enjoyed working together to make a tangible difference in the lives of persons with disabilities. In 2021, we decided to extend our shared passion for creating beautiful environments for all and opened All IN, our interior and inclusive design company.


Catherine Karusseit
BHHK(Int) cum laude MInt(Research) cum laude (UP)

Janri Barker
BSc(Int) MInt(Prof) cum laude (UP)

OUR Memberships

SABS/TC 0060/WG 19

Projects & Partners

The partners of All IN have been a huge help in developing universal access materials for church buildings in the RampUp project. We are very grateful for their excellent expertise and creativity. We wish them great success in their endeavours and many more happy clients
Erna Möller, RampUPSA


Years of experience has resulted in a team that has an exclusively inclusive approach. Always happy to see them informing, educating and assisting their clients to understand inclusive design. A team that will benefit any project!
Gavin Williams, 86redBRICKS Architects


All IN Access Design Train (Pty) Ltd, did a very comprehensive accessibility assessment as I was about to move into a new home that needed to be made accessible for my motorised wheelchair. What was initially a challenging prospect became a simple systematic approach and we were able to make modifications according to All IN Access Design Train’s recommendations, that was well thought through and practical solutions to ensure I could access all indoor and outdoor areas without assistance. Through the help of this team of specialists, I gained custom solutions to my specific needs and independent living.
Robinne Renkin, TLF

previous arrow
next arrow