How to count the amount of window works
The amount of window works by the window of the high by the width to count, and then sum up it wants
1, the drawings will have windows and doors table, according to the plan and the number of doors and windows window number of doors and windows. Sometimes, the number of doors and windows table is not correct. 2, check the doors and windows of the door and window size calculation door and window frame of the external dimensions in square meters. 3, each side minus 15mm on each side, for example: 1200 * 1000 window calculation: (1200-15 * 2) * (1000-15 * 2) =; 900 * 2400 of the door calculation: (900-15 * 2) * (2400-15 * 1) =
Long * wide = area (hole area), according to a different way to open up like a good!