Measuring goes by the total window + framing not just the glass. Panels should equal 2 1/2 time the window width. So you need 175" divided by 2 = 88" wide panels. Not sure you have room for stack back on the left. Also rug should be hung wider than the molding and about 2/3 the way above the slider.

Your panels should extend to the ceiling, not the top of the door frame.

No less than 2 panels PER SIDE!!!!!

Select a rod that extends beyond the frame of the door. No less than 84" wide so that the drapery panels stack in front of the wall and not the glass.

Thank you for this helpful information. I had no idea!! In our guest room, there is another window above the slider, so where would we hang the rod?