2 Types of Mounting Brackets
Wall Mounted Installation:
The curtain track is mounted against the vertical face of the wall, just above the door opening. With this method the rail is slightly wider than the door opening. The result is a better looking, more efficient installation.
Lintel Mounted Installation:
Would be the same size as the door opening. The mounting bracket is secured vertically from underneath directly to the lintel of the door opening.
Wall Mounted
Lintel Mounted