Yes. It is rarely the case that you have suitably strong mounting points at exactly the correct position for all corners of the sail to get the location of the shade you require. It is necessary to make the mounting point at least 12″ / 30cm further than the corner of the shade, to allow for the fixings and tensioning device but it is then possible to extend this distance by means of a chain, wire strop or even non-stretching rope. The length of the extension is theoretically as long as you want, however, in practice keeping it as short as is possible is preferred. When you extend, you are making the whole installation more prone flapping in the wind and will therefore require greater tension and possibly stronger fixings. So, it is common to do, but avoid doing so if you can. Check our How to Install and Tension a Sun Shade article.