How to Choose Window Screen Mesh Size?

Window screen mesh size refers to the number of strands or openings per inch in a screen. It is a critical factor in ensuring that your screen is effective for keeping unwanted pests out while allowing airflow and visibility.

The mesh size affects both the level of visibility and airflow you get through the screen. A smaller mesh size may block more insects, but it can also reduce air circulation. Conversely, a larger mesh size might allow more airflow, but it could let in smaller insects.

Common mesh sizes for window screens include 18x16 and 20x20. The first number indicates the number of strands per inch horizontally, and the second number indicates the number of strands per inch vertically. The 18x16 size is popular for general use, while the 20x20 size is preferred for finer filtration.

Start by considering the primary purpose of the screen. If you live in an area with many flying insects, a smaller mesh size like 20x20 may be beneficial. For better airflow and if you face fewer pest issues, an 18x16 size could be sufficient. Additionally, consider the type of windows you have and how often you open them.

Yes, the right mesh size can improve energy efficiency by allowing natural ventilation while keeping bugs out. A well-chosen screen can balance airflow and protection, which may reduce reliance on air conditioning.

Besides mesh size, consider the type of material. Fiberglass is common and very durable, while aluminum is also a choice but can rust. Look for screens that can withstand weather conditions and are easy to clean.