For example, say your window’s width was 30 inches (76 cm). Add 6 inches (15 cm) to get the rod size of 36 inches (91 cm).
For example, if window’s width was 30 inches (76 cm), your rod’s length would also be 30 inches (76 cm).
For example, say your window’s width is 30 inches (76 cm). For a below trim rod, your rod should be 33 inches (84 cm).
For longer curtains, the rod will probably be higher above the window. Rods can be placed anywhere from 6 inches (15 cm) to 12 inches (30 cm) above the window frame. It can help to make a light mark on the wall to determine where your rod will fall.
For example, say the length of the window is 40 inches (100 cm). You want your curtain rod a little higher than the frame, so add 6 inches (15 cm) to this to get a length of 46 inches (120 cm).
Double the width for pencil pleated windows. Multiply the width by two for eyelet windows. Multiply the width by 1. 5 for tab top windows.
For example, say you want below sill curtains. Your window is 100 inches (250 cm) and the rod will be 6 inches (15 cm) above the frame. Add 12 inches (30 cm) to 100 inches (250 cm). Your curtain length should be 106 inches (270 cm).
For example, say your pencil pleated panel is usually sold with a width of 40 inches (100 cm). If your window’s width is 60 inches (150 cm), you need to order two panels.
A 5 to 8 inches (13 to 20 cm) puddle will fan slightly across the floor. For a more dramatic puddle, you can add 10 inches (25 cm) or more to your total curtain length. Functional curtains, which are going to be opened and closed frequently, should not have puddling.
For example, for a pencil pleated window valance, double the width.
