In this video, Julia helps us to know how to choose the perfect sized mirror to fit our vanity. You want it to be 1” smaller on each side than the vanity. So you need to start with the width of the vanity and subtract 2”. You can go smaller than that and you then want to take in to consideration any accessories for example, wall sconces. Will there be a back splash? That will factor in the height of the mirror. What about outlets? You also want to keep in mind the depth of the mirrors as one that is too thick, may not work so well.