For the width, measure the total width of one of the window panes (approximately half the width of the opening).
For the height, you must take a measurement. from inferior nerve to superior nerve where the mosquito net will run. We will take care of the necessary adjustments so that the mosquito net fits that measurement. If you are going to install a supplementary "Z guide", bear in mind that each guide has a total height of 24mm and you will be installing one at the top and one at the bottom..