By Design of Your Life
Art hung above a sofa should be roughly 6-8 inches above it. This helps make It feel connected and cohesive.
On an empty wall, the center of the art should hang approximately 57-60" from the floor. Or if you’re an average height woman, an easier way to measure is to hang it at eye level.
If you’re pairing more than one frame, hang them 3-4" apart. Keeping the frames close helps the eye see all of the art as one unit. When hanging artwork above furniture, it should fill 2/3 the width of the furniture below it.
The curtain rod should be positioned at least 4-6" above the window frame, BUT PREFERABLY all the way to the ceiling. This elongates your walls giving the illusion of taller ceilings. Curtains should reach the floor...all the way to the floor.
Extend the rod beyond the window frame so that when your drapes are open, they don’t cover the window. This allows in more light and gives the illusion of a wider window. Hang drapes on both sides of the window, even single windows! And don’t be afraid to double up on curtain panels for an even fuller look.
With few exceptions, main furniture pieces should never be directly against the wall. Even in small spaces there should be a few inches between. When one piece is anchored against a wall, the others should be brought to it, not shoved all the way against the opposite wall.