Sliding panel shades carry the beauty of natural wood to your window coverings. These panel tracks are perfect for sliding door window treatments or can even be used as a window divider. Sliding panel systems or track systems are available in vertical or horizontal options. The horizontal systems are a great alternative to shutters because they have some of the same characteristics and can look similar, but don't require the space to open. Horizontal track systems work well for patio doors; they are perfect “door blinds” because they are designed to stack on either end in the center or on both sides of the window or door.