The MB-45 OFFICE system of fixed partition walls or walls accommodating doors is intended for building internal partitions, in which tempered safety glass panel or aluminium profiles may be used as the load-bearing component. As such structures may be installed in high rooms, they are most often found in shopping centres or office buildings. Apart from fixed development, the system allows for building highly attractive all-glass operable and swing doors, as well as standard doors based on the elements of the MB-45 system. An essential advantage of this system is its modular arrangement, which makes it possible to rearrange the division of space, thus adding it new functions.