One of the smallest mesh size offerings that we have available is the 1/4" polyester debris material - and this is a great option to consider for block smaller-sized leaves and general debris-type objects. The 1/4" polyester fabric is very well suited for long-term outdoor exposure, it has a high resiliency against tearing and/or punctures, and is a lightweight fabric that is easy to work with so that you can accomplish your goal with dependable results.
Recently we assisted a customer that was tired of picking up and raking leaves out of his home bocce court in Pennsylvania. The court measures 12' X 48' in total area, and his primary objective was to use the 1/4" polyester netting with a rope bordering sewn-around the edges, along with Gourock's Bungee Ball Straps, to suspend the netting over the top of the court for all times that it is not being used. He wanted the netting to catch and contain all of the falling leaves from surrounding trees, and prevent them from actually accumulating inside his court and on-top of the playing surface. This would mean he could dramatically reduce the amount of time set aside for prep and cleanup of the court area, and increase the amount of actual playing time.
Our customer opted to order the material slightly wider than needed, in order to have enough material on-hand to adjust the fit and installation as preferred - so he went for a 13' X 48' rope bordered panel, built from the 1/4" polyester. He noted that he's still tinkering with the suspension and hanging method he most prefers for the netting, but that the end result of blocking leaves from the court surface is functioning very, very well and he is quite happy with the results. He forwarded over some example photos of his bocce court both with and without the barrier netting installed - and it looks like a very nice and functional finished project!
Thanks again David, looks great - and we appreciate your business and feedback very much!