YES. Shade sails are made with special cloth but still come in regular rolls of material that are 118\\" or 150\\" (300cm - 380cm) wide. Shade sails that are larger than these dimensions are made by sewing them together. Depending on the manufacturer they will also cut a hollow of about 7-12% out of the edges and then attach some edge reinforcement tape / webbing. This tape is also sewn on using regular sewing machines and it is possible to make your own shade sail as explained on Sailrite.com.