Absolutely LOVE our new pergola! Delivery was surprisingly quick! Ordered on a Sunday and was all at my house and ready to start assembling the following weekend! We had to cut one side down a foot to fit on the patio so we called the manufacturer a few times to get measurements correct, they were extremely friendly and helpful. We purchased end caps (not shown) since the decorative ends would not fit, but it is possible to do this if you are considering putting on existing patio. You must purchase additional wood beams and posts and wood for spacers, as one other reviewer said, so plan on spending another 200 on that. We also purchased blot down brackets and needed to purchase additional drill bits and screws for concrete. Make sure you have all the right tools for the job. Since we need to make several cuts to the louvers we purchased a blade for table saw as well.