The best mesh material for screens depends on the specific application and requirements. Here are the most common materials used for screen meshes, along with their pros and cons:

1. Fiberglass Mesh
Pros:
Durability: Resistant to corrosion and not prone to rust.
Flexibility: Easy to install and handle, making it ideal for DIY projects.
Affordability: Generally less expensive than other materials.
Visibility: Provides good outward visibility.
Cons:
Strength: Less durable than metal screens and can tear more easily.
Best For: Standard window and door screens where cost-effectiveness and ease of installation are priorities.

2. Aluminum Mesh
Pros:
Strength: Stronger and more durable than fiberglass, resistant to damage from pets and heavy use.
Corrosion Resistance: Generally resistant to rust, especially if coated.
Visibility: Good outward visibility, though not as clear as fiberglass.
Cons:
Denting: Can dent more easily than other materials if struck or pressured.
Cost: Slightly more expensive than fiberglass.
Best For: Areas where durability and longevity are key, such as high-traffic windows and doors.

3. Stainless Steel Mesh
Pros:
High Durability: Extremely strong, corrosion-resistant, and long-lasting.
Security: Can provide added security against intruders and is often used in security screens.
Weather Resistance: Excellent resistance to harsh weather conditions.
Cons:
Cost: More expensive than fiberglass and aluminum.
Weight: Heavier and may require more robust framing.
Best For: High-security areas, coastal regions where salt corrosion is a concern, and areas needing strong, durable screens.

4. Copper or Bronze Mesh
Pros:
Aesthetic Appeal: Offers a distinctive, upscale look that can develop a patina over time.
Strength: Strong and durable, with natural resistance to insects.
Cons:
Cost: More expensive than other materials.
Maintenance: Requires more upkeep to maintain its appearance.
Best For: Architectural projects where appearance is a priority, or for use in historic buildings.

5. Pet-Resistant Mesh
Material: Often made from vinyl-coated polyester.
Pros:
Durability: Designed to resist damage from pets, particularly claws.
Strength: Stronger than standard fiberglass or aluminum mesh.
Cons:
Cost: More expensive than regular screen mesh materials.
Thickness: Slightly thicker, which might affect visibility.
Best For: Homes with pets, particularly in areas where pets frequently scratch or push against screens.