If you are looking for a relatively inexpensive way to create shade, this is the way to go. One thing we figured out is that the measurements are from corner to corner, which means that the actual body is slightly smaller. We ordered the smaller size first and exchanged it immediately for the larger one. We used four poles set in concrete as anchor points. We also attached two connection hooks on each pole...one about 1 1/2 feet higher than the other. This gives us the option to raise or lower the shade on each corner for optimum shade during any time of the day. We love the fact that the material breezes and lets moisture through for our planters. It is amazing how much cooler it is underneath this shade sail. My husband was very apprehensive at first...now he loves it. We just had an outdoor party and everybody commented how nice it looks and how effective it is. My main suggestions is: measure properly and make sure you pick the best way to anchor it.