Published at Tuesday, July 17th 2018, 00:41:12 AM by Madge Salazar. Bathroom Mirrors. Shape and size are important, both in terms of finding a mirror that doesn't overshadow your bathroom furniture, or look too small next to a giant basin, and in terms of practicalities. If your mirror space is wide, a landscape mirror will be most suitable; if the space is tall and narrow, a portrait mirror will be most appropriate. A mirror positioned over an extra wide basin should also be extra wide: if two people can use the basin at once, they should both be able to see in the mirror simultaneously, too.And if members of your family are varied in their heights, choosing a tall mirror will mean that both the tallest and the smallest can both see their reflection without stooping or standing on tiptoes.