You will need a tape measure, a pen, and painters tape. First, move furniture, if needed and place the painters tape along the area where you would like a rug to be placed. Your taped area should be the entire width and length of the desired rug which will include all four sides. With your measuring tape, measure the size of the area you have taped and use your pen to write down dimensions on the tape. This will help you determine the approximate size rug needed for your space and can help narrow your search! Helpful hint: consider running your rug parallel with your room or with the longest piece of furniture in your space.