With heating

In this case, the communication box will not be an obstacle, on the contrary, it will allow you to make niches with open regiments. The perimeter of the walls for placement taking into account the box will be 3.90 and 2.55 m (at a ceiling height of 2.70 m). The wall with window opening has conclusions of heating communications with heating radiators. Therefore, the working length of the wall will be reduced by 10-20 cm and will be not 3.90, but 3.80-3.70 m, depending on the location of the pipes.