measurements of the gap under the door can also help you determine which solutions will be most effective, typically gaps larger than 1/4 inch will let in noticeable drafts.
2. Roll Up a Towel or Blanket for an Instant Draft Stopper
One of the quickest fixes is to roll up a towel or blanket and place it snugly against the bottom of the door. This method is especially useful for doors with gaps of 1/2 inch or larger. Make sure the towel or blanket completely covers the width
