I lowered my needle measurement by four sizes! When measuring neck handy to make other sizes you say measure and modify accordingly… Someone needs me to make some ponchos for her granddaughters and I know I need to dimension up as a result of one is 5 and one is 7. Do you suppose I should dimension up the hood as properly? 18Ч18 for the hood comes from the scrap when slicing the circle or I want to purchase an extra little bit of fabric on top of the 1 yard? I think I might start with chopping the most important circle layer to be about 4" greater in diameter. But I think it would be cute to do it any manner you like! I'm so glad you prefer it! And I’m so glad I did. I found a large piece of denim in my stash that I’m going to use for the outside. Love this poncho and would love too make one for my Nice Granddaughter,your measurements are 36Ч36,so I’m wondering what to cut the sq. at so it finishes at 19" !