If I could give this transaction and product 10 stars, I would. This was the most uncomplicated and comfortable process to success I've been through. Measure the existing, go to the Exterior Solutions site, choose your style and all information is there. I did call customer service to help with the order, because my knowledge in this area is limited and I didn't want to err! A person with a smile in her voice answered, we ordered, no issue. A few weeks later, my order was delivered, just as ordered. Now installed on my home, looking just as smart and unique as I had expected. Outstanding experience from start to finish.