These are traditionally small horizontal slats of glass that open with the assistance of a lever mechanism. Please tell us how many individual slats you have.

For example, if you had louvre like the picture, but there were 2 bays of them in the lounge room, and one bay in the kitchen, you would have a total of 18 louvre (3 bays x 6 louvres in each)

Federation windows have a main window, framed by smaller ones.

In the illustration, there are 9 individual panes making up one window. Sometimes you will have 2 like this side by side – giving a total of 18 panels for the purposes of the quote.

These are usually small square (sometimes rectangular windows). Sometimes used as a feature window, other times, every single window is this style.

We need to know how many small windows you have. For example, in the illustration, 6 rows of 5 windows is a total of 30 colonial windows.

If this window was repeated in 4 rooms, you would have 120 colonial windows (4 rooms x 30 colonials in each room).

These are usually found around pools or on a balcony. Please tell us how many panels you have, see diagram for reference.