The wood is beautiful, but the instructions are not super specific. There were supposed to marks on some of the wood to indicate where to install some of the rafters but there were not, so I had to do a little math and measuring, so not a huge deal, but you will have to have some basic construction knowledge to complete installation. Particularly if you want to anchor to concrete, there are no instructions, or guidance, or suggested equipment to do it. You'll have to use other resources. Also one of the pieces of lumber was mislabeled, but an easy fix. and one of the holes wasn't drilled all the way through. and a BIG one, I ordered the 20x20. It took a long time and a lot of special equipment to deliver. contact the shipper before your delivery date to confirm details, AND expect a huge amount of packing material. It comes in a huge very well constructed cedar box. Took a full day to break down shipping material just to be able to dispose of it. hundreds of screws, staples, and glue and foam packing material. A lot.