The Rubix ceiling fixture from Boyd Lighting proves that it’s hip to be square. The line is available in two sizes: Rubix I, which measures 11 5/8 inches tall and 12 ¾ inches wide, and the larger Rubix II, which measures 14 5/8 inches tall and 16 inches wide. Both are available in antiqued Boyd brass or satin nickel finishes, and come with an oyster linen shade.