Learning how to make curtains will allow you freedom of design in color, length, and style. If you’re looking to change up decor in a major way, new curtains can give a whole new look to any room. It is also less expensive than buying ready made curtains.  Step #1 Measure Windows Standard finished curtain length is 84 inches. To achieve standard length, add at least 10 inches for a length of 94 inches unfinished. This is because you will want 4 inch folds at the top and bottom for weight and stability (1 inch tucked under to hide the unfinished edge). If you want curtains shorter or longer than standard…