WIDTH: Give the measurements of the space you want to cover from left to right.
HEIGHT: Give the measurements of the space you want to cover from top to bottom.
The width and height measurement should always include the cassette, valence, headrail or roller. The fabric will be approximately 5/8” less on each side. If, for example, the space to be covered is 60”, it is recommended to order 64” (being an additional 2” on each side) to ensure that the entire frame is covered, avoiding any gaps that would allow the light to shine through.