<p><b>Product Description</b></p> <p>This Sunshade Sail / Garden Canopy is made of high-quality sun screen fabric. It permits refreshing air to flow through. Product is often used for protection from harmful UV rays for up to 95%, and can easily be hung over a driveway, patio or other outdoor spaces to provide shades. <p><b>Please note: </b>Our sunshade sails have curved sides for strengthening purpose, and prevents drooping. Please understand it will have about 1-6 inch deviation for each side. </p></br> <p><b>How to Take Measurement</b></p><p> 1. Measure the distance from one post to the next.</p> <p>2. Based on those measurements, subtract 1~1.5 feet. For example, for a 9' x 9' x 9' measurement, we suggest purchasing 8' x 8' x 8' Sunshade Sails due to our special curved design that stretches in length. </p></br><b>Important: </b>Our customized sunshade sails are made case-by-case, and cannot be resold. Please carefully measure your space, and choose the correct size for your needs.