Height: Measure exact window height at left, middle, and right side.
Use longest height.
Do not make any deductions - provide the exact measurements of the longest height
Width: Measure exact window width at top, middle, and bottomTake the smallest measurement of the three. Note: To ensure that your blinds will be installed "flush" you need a minimum of 2''1 / 2 deep space requirements.
Choose the type of single blind you require
Block Out Blinds
Block out blinds will stop the sun, keeping your home shaded all year long. Perfectly suited to all rooms in your home but specially great for privacy in bathrooms and bedrooms. A Block out blind does NOT allow you to see in or out.
Light Filtering Blinds
If you want a light filled room and are not concerned about high level privacy then a light filtering blind is perfect. They impede the view from inside and outside but at the same time allow light to fill the room. At night they will reveal silhouettes so do not provide great privacy.