I have three patio doors. Two in my family room and one in my bedroom. All have traverse rods made from Kirsch. Two traverse to one side only. The third splits in the middle and traverses to both sides of the patio door. The third also has sheers because it is in a bedroom. Country Curtain and JCP have full width pinch-pleat patio drapes for a reasonable price. Remember to factor in the width at the side of the patio door to stack the drape beyond the patio door.

I had patio doors in another house's kitchen. For that situation, I purchased a heavy duty iron rod and rings from PB, to which, I hung striped, heavy weight, PB drapes which were very casual. It had just one support in the middle where the two panels met. I also put a stationary sheer under it which stayed almost all the way closed full-time, giving it an extra layer of privacy.

I really like the idea of a one way traverse because we use our sliding patio door all summer to go into our back yard. There is also a large deck right outside and we grill there. So I have to be careful that I can keep the curtain away from the area where people come in and out.