Write the next sentence in the following story.

How to make reversible curtains
Understand approximate measurements.
Gathered curtains are usually 1.5 to 2.0 times wider than a window.
Measure for your desired length and width.

Options are: - Add 4 feet (1.4 m) to start the measurements. ( measurements by window frame, if you want the curtains to be more or less accurate).. - Variances of sizes will make it difficult to make changes when hanging curtains and necessitating to confirm the measurements. Place your curtains in front of a wall.. - Each curtain needs you to measure for your desired width, width, and depth by tying a very narrow string to the folded or colored string at the bottom of the curtain. Mark your desired width at the tops and the bottom of each fringe, just below the thread.. - Add the width of the curtain rod to the length of the fabric. Add an additional 1/4 inch for movement of the rod within the rod pocket... The answer should be
Add the width of the curtain rod to the length of the fabric. Add an additional 1/4 inch for movement of the rod within the rod pocket.