Understanding Mesh Count: What Do the Numbers Mean?

Mesh count refers to the number of threads per inch in both directions. An 18×16 mesh has 18 threads horizontally and 16 vertically per square inch.

Common Mesh Counts

18×16: Standard insect protection. 20×20: Higher protection with slightly less airflow. 25×25: Maximum protection for very small insects. 16×13: Standard for pet screens with thicker yarn.