We count the windows by leaves. They may vary in size, the main thing is their number.
This is a double-leaf window - it counts as one window.
Single-leaf narrow window is half window.
If you have three leaves, it's 1.5 windows.
Balcony door and window - it's 2 windows.
One section to the floor counts as one window. There are 5 windows in the picture.
If the windows are not to the floor, they are counted by leafs. In the picture there are 2 windows (4 leafs).
If you get 9.5 windows in your order, round down to 9.
