This shade looks and works well. Since they are pre-cut, you have to hope that it reasonably fits your opening. We have a 3" gap on either side but that doesn't negate its effectiveness of blocking afternoon sun. The materials allows sufficient light through while still blocking the sun's heat. Installation was easy. It can be converted to ceiling mount by changing the end brackets. Fortunately I did not have to do that which saves some time. It is designed to be mounted into wood. I installed it into aluminum patio cover using sheet metal screws and washers purchased separately. Some things to consider: this shade cannot tolerate much wind, the bungee loops to secure the shade bottom to clips to hold the shade in the wind are quite short and won't reach far (I am replacing them with longer loops), and you might want multiple clips to secure the shade at different heights. This works well enough that we are buying a second one to cover the next section of the patio.