Measure 6 feet off the ground and install the hardware that comes with the Shaker peg rails. Use a level to ensure the rails will run straight across the wall.
Hang a set of Shaker peg rails on the hardware to create an unbroken line of pegs that go all the way across the wall from corner to corner. You may not want to hang curtains all the way across the wall, but the extra Shaker peg rail will add an additional design element that brings the room together.
Hang the tab curtains by slipping one tab onto each peg. Allow the curtains to hang loosely instead of stretching them taut across the wall. Skip a tab to create excess slack in the fabric if you need to. Hang the curtain across part or all of the wall, or create a nook by hanging the curtain along two walls that meet in a corner.