I've been doing a bit of work with Barbie sized dolls and I found this Scale Conversion Calculator so that I could calculate 1:6 scale. I Found out that a standard doorway is 6'8", or 80". Using the Scale Conversion Calculator I found out that a standard door in 1:6 scale is 13.33" tall. Unfortunately, the scrapbook paper I have been using for the room walls is 12"x 12".