The density of the sail shade fabric is measured in grams per square meter. We recommend at least 150 at an absolute minimum. Anything less than this, and it will easily tear from daily use.
If you are looking for something that is more wind resistant, we prefer going with a heavier fabric that is 210 GSM or more. This will be significantly more durable than the budget fabric. This will resist ripping or developing holes that will create a structural failure in the shade.
Additionally, once the fabric is compromised, it will no longer share the load evenly. A small tear doesn’t seem like a big deal, but when the winds pick up all the forces will be pulling away from the rip and that will be the path of least resistance. This can lead to the shade completely tearing in two pieces.