I bought this product to use in the doorway coming off my porch. I have 7 dogs who like to be outdoors but opening and closing the door this time of year continuously to see if they are ready to come in or not is a pain and we lose a lot of heat out the door that way. I cut this into lengths and hung them overlapping in the doorway so the dogs can still go in and out and we don't lose all the heat the front door