Today’s construction buildings contain more advanced technologies than before. The development of newer and stricter regulations to the construction industry makes the door environment more and more complex. In large construction projects the door environment is held up as a major challenge to get to in a good way. It turned out after a discussion with one project manager and a site manager at NCC, that the door environment is difficult to get right in major construction projects and it often causes many error reports in to the aftermarket after that the final inspection is completed. Interviews have been done with key figures in the building process at NCC and Akademiska hus. A study on a university building for around 3500 students and with 300 workplaces was made. There were a lot of data with fault reports to the go trough to find fault report from doors and be analyzed and statistic. The results from the data collection showed that many fault messages on the doors in was caused by the door operator. And from the interviews the content was clear that the coordination has to be good to have a functioning and a good door environment. One part that can contribute to a better door environment is to plan space for possible door operator over the door. Another part is that the construction documents which production workers are working with, is to find a way to always have the latest documents in hand.