There are two basic types of mount options: inside mount and outside mount. The mount type you choose is based on your preference or your window casing limitations.
There are two types of inside mount options: regular and flush. A window treatment installed using regular inside mount means the window treatment sits inside the window casing, but the headrail does not. A window treatment installed using the flush mount method means the entire window treatment, including the headrail, sits inside the window casing. Flush mount usually requires a very deep window casing. See our Measure tutorial to ensure that your window casing meets the minimum depth requirement.
When you select outside mount, the window treatment will be installed above the window opening and mounted to the wall or moulding.