CANVAS: We use Sunbrella brand 100% acrylic Marine Canvas. Sunbrella has a 10yr limited warranty on this high quality fabric. It is available in many colors. It repels water, is UV stable and breathes.
We also offer Weblon Regatta heavy duty waterproof fabric. Super strong, has a faint grid texture on outside, and a less textured finish on inside. Often used for t-tops and enclosure surround/borders. Limited in colors.
We use marine grade vinyl for our boat upholstery work. Available in many colors and in flat and pleated. There are about 100 versions of 'white', so don't just say you want white!!
We use Sunguard 138 UV resistant bonded polyester thread for most all products that will experience normal outdoor duty and wear. We use Gore Tenara (Gor-Tex) thread for t-tops and other applications under constant, extreme tension and offer it at an upgrade price on all other work.