When it comes to snake fencing, opening size is the first aspect to consider. If the openings are too large, snakes can just pass right through. If it’s small enough to not allow snakes to pass through but not small enough, then the snakes can become stuck in the mesh and die. In most cases, based on what we see customers use, a snake mesh fence should have 1/4 x 1/4 inch openings. Be sure to carefully plan for your specific needs, as there are many variables; ultimately, you will need to choose the right product for your project.