The Canvas Weave adds extra style and shade to your pergola. The sturdy canvas/nylon shades attach with a hook & loop fastener on both sides for a professional and seamless look and finish. Each Kit comes with five canvas shades and everything you need to easily attach the shades to your pergola. Product Compatibility: The Canvas Weave for Vita's 12×12 Pergolas. Tools Required: Ladder Approx. Time Commitment: 1 person, 1-2 hours.