Thank you for your question regarding dimensions. This was a custom cabinetry design concept that was then given to my cabinet shop where we then finalized all details and dimensions together before approval of the final design. I do not have these exact dimensions any longer as this project has been completed for a number of years. The knee space is enough for two chairs/people to work at comfortably side by side and the base drawers are for files. The room has 9ft ceilings. I hope this helps with your planning.