(6)A six-class high school with 450 students has at least 18 rooms including the Headmaster's room, staff room, office room, library, science class, geography class and an assembly hall. There should preferably be a gymnasium also. In class rooms, the standard floor space should be at the rate of 10 square feet per pupil. In case of four-class schools having 320 students, the number of rooms should be 15. The building should be entirely pucca or it must have pucca walls and the floor of the rooms cemented.In the initial stage, the number of rooms mentioned above need not be insisted upon. After the school has been recognised, the Board shall lay down a phased programme of construction of rooms, etc., for each school after recognition. But at the stage of recognition, there must be Head-master's-cum-staff room, office room, library room, science class-cum-geography class in addition to the requisite number of rooms for the existing number of Classes according to the time-table.