When shopping for a pool enclosure or re-screen in Southwest Florida, you’ll hear terms like “18×14 mesh” and “20×20 mesh” thrown around. But what do those numbers actually mean, and how do you choose the right screen for your home? Here’s a straightforward explanation from our 20+ years of experience.
What the Numbers Mean
Screen mesh sizes are described by two numbers that refer to the number of threads per square inch in each direction. An 18×14 mesh has 18 threads running in one direction and 14 threads running in the other direction per square inch. A 20×20 mesh has 20 threads in both directions per square inch.
More threads per inch = finer mesh = smaller openings. This is why 20×20 mesh blocks smaller insects that 18×14 lets through.
Standard Fiberglass (18×14)
The most common residential screen. 18 threads by 14 threads per square inch creates openings small enough to block mosquitoes, flies, and most common insects. It offers good visibility, decent airflow, and is the most affordable option. Typical lifespan in Southwest Florida’s UV environment: 7–12 years before it becomes brittle.
Our Standard: HD Screen by Super Screen
At Structural Aluminum & Screening, our standard screen for all installations isn’t generic off-the-shelf mesh. We use HD Screen by Super Screen, a name-brand product that carries a 5-year manufacturer warranty. It’s a significant step up from basic fiberglass in terms of durability, UV resistance, and overall longevity — without a huge price premium. When we say “standard mesh,” this is what goes on your enclosure.
No-See-Um Screen (20×20)
If you live near the coast — Marco Island, Fort Myers Beach, Sanibel, Siesta Key, Anna Maria Island — you know about no-see-ums. These tiny biting midges pass right through standard 18×14 mesh. The 20×20 mesh (20 threads in each direction) creates openings small enough to block them. The tradeoff: slightly reduced airflow and visibility compared to 18×14, and higher cost. But if you’re near the water, it’s worth every penny.
Super Screen (Premium Poly Mesh)
This is our premium option: name-brand Super Screen with a 10-year manufacturer warranty. It’s a vinyl-coated polyester mesh (not fiberglass) that offers significantly better visibility — you almost forget the screen is there. It’s also substantially more resistant to tears, UV degradation, and wind damage. Super Screen costs more upfront but lasts dramatically longer than standard fiberglass, making it a better long-term value for homeowners who plan to stay in their home.
Pet-Resistant Screen
If you have dogs or cats, standard screen doesn’t stand a chance against claws and leaning. Pet-resistant screen uses heavier vinyl-coated polyester that withstands normal pet contact without tearing. It’s not indestructible, but it’s dramatically more durable than any fiberglass option.
Florida Glass (Acrylic Panels)
Not technically a screen — these are clear acrylic panels that replace screen sections entirely. They block wind, rain, and cold while maintaining visibility. Popular for converting screen rooms into semi-enclosed living spaces.
Which Screen Should You Choose?
For most Southwest Florida homeowners: our standard HD Screen by Super Screen gives you excellent quality and a manufacturer warranty at a fair price. If you’re coastal, add 20×20 No-See-Um where needed. If you want the longest-lasting, best-looking option, Super Screen with its 10-year warranty is the move. Have pets? Pet-resistant screen for the lower panels at minimum.
Not sure what’s right for your situation? Contact us or call (239) 264-5914 — we’ll walk through the options based on your location, lifestyle, and budget.
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Pool enclosure services · Re-screen and repair services · Pool enclosure cost guide