Diy Small Walk In Closet Ideas . First, install a curtain to enlarge the room’s length. Sometimes we need to save on certain things so we can afford things we really want an. Small and simple walk in closet 8'x6' Closet design layout, Closet from www.pinterest.com Clean the closet wall, patch the holes and repaint it as you like. Find all the studs on the wall, and place pencil marks for the locations. Here's how to design and build a custom closet in a way that is easy to do and looks great.