Pool-cage mesh in Central Florida is a count, not a brand. 18×14 is the common fiberglass rectangle: about 18 strands per inch one way and 14 the other. 20×20 is a finer square. No-see-um is denser cloth sold to stop tiny biting midges, and that density cuts airflow. Orlando West Pool Care matches you with a local tech for rescreening, torn panels, spline, and screen doors on an existing frame. We do not build new cages, pull permits, claim a contractor license, or inventory a “tested” mesh line. We will not invent a laboratory ranking.
Climate is why the cloth fails, not which SKU you picked. The Florida Climate Center’s 1991–2020 normals at Orlando International Airport put 51.45 inches of rain a year, with June–September at 8.05, 7.46, 7.69, and 6.37 inches, and August’s mean at 82.6°F. NOAA and EPA publish a daily Ultraviolet (UV) Index forecast because solar UV at the surface is strong enough to be a public product. That rain and that sun age every weave on a Horizon West or Windermere enclosure. Tighter mesh does not cancel UV.
What does 18×14 pool-cage mesh actually mean?
The numbers are mesh count, not a Florida Building Code grade. 18×14 fiberglass is the default on most west Orlando cages because it is open enough for breeze and sight lines and tight enough to stop oak leaves, palmetto bugs, and neighborhood cats. It is not a lid. Catkins, pollen, and no-see-ums still pass. That is why a Windermere roof still sheds tassels into the skimmer, and why a Hamlin pond-front still gets bitten at dusk on standard cloth.
18×14 is the honest choice when the job is debris and ordinary insects and you want air moving across a west-facing deck in August. After a decade of Central Florida UV it chalks and splits. Brittle 18×14 is a rescreen of the cloth, not a reason to jump weave unless you already wanted the finer count. Polyester and “pet” weaves are different fibers in the same count range. Fiber is claw strength. Count is hole size. We will not name a brand or a psi test we did not run.
When is 20×20 worth the finer weave?
20×20 puts about twenty strands per inch in each direction. Openings are smaller than 18×14. Smaller openings stop smaller insects and more of the dust that 18×14 treats as climate. They also pass less air and look slightly more like a screen and less like open sky. That is the trade.
Choose 20×20 when the complaint is bugs you can still see — small mosquitoes, lots of gnats — and you will accept a little less breeze on a Waterleigh or Clermont deck. Do not choose it because a sales script said it is “hurricane mesh.” Wind load is the frame, the anchors, and the permit drawings. Mesh count is not a wind rating. 20×20 still will not make a preserve lot bite-free if the thing biting you is a no-see-um. If the holes are still larger than the insect, the count did not do the job you bought it for.
What is no-see-um mesh — and what does it cost you in airflow?
No-see-ums are biting midges. The cloth sold as no-see-um (often a dense 20×20 or a still-tighter specialty weave, depending on the mill) is meant to make openings small enough that those insects do not fly through. Denser cloth means less open area, less airflow, and a dimmer lanai on a 91.6°F August afternoon. That is physics, not a review.
Horizon West, Hamlin, and Waterleigh lots near ponds and conservation tracts get more of that dusk bite than a downtown Winter Garden street under oaks. Oaks give you tassels. Wetlands give you midges. 18×14 is a debris screen. No-see-um is an insect screen you pay for in air. If you live in full sun west of 429 with no wetland edge, denser mesh can make a hot deck hotter. If you cannot sit outside at dusk without being bitten through 18×14, the denser cloth is the point of a rescreen. We will not publish a percent of UV blocked, a degree-cooler claim, or a brand shoot-out. NOAA’s UV Index and the Florida Climate Center rain table are climate context, not mesh test data.
Can I mix mesh types on one cage?
Some owners put denser cloth on the lower walls, where the chairs are, and leave a more open weave on the roof so the box can still breathe. That is a layout choice, not a code we will invent. Mixing leftover brittle 18×14 with a new no-see-um rectangle looks unfinished, and the old cloth will still fail. If you are changing count, change the cage. Matching for that rescreen is screen and lanai repair.
Does mesh type change Florida UV and rain wear?
All of it ages. Fiberglass becomes brittle in sun. Rain drives oak, pollen, and irrigation overspray against whatever count you chose. NOAA’s Atlantic hurricane season still runs 1 June–30 November; that is wind on the frame more than a reason to buy denser cloth. A tighter weave can load with debris faster because particles sit on the grid instead of passing.
Inside the cage, shade is the mustard-algae story already written: mustard algae in a Florida screen-cage lanai pool. Denser roof cloth makes more shade, which is nicer at noon and friendlier to a yellow film on the steps. Mesh choice does not replace a residual and a brush. If the cage is how you keep a child off the deck, Florida Statute 515.29 still cares about openings a young child could squeeze through, regardless of 18×14 or 20×20. Count is not a barrier certificate. Torn is torn.
Permits follow the job, not the SKU. Mesh-only on an unchanged frame is often treated as maintenance. Changing members, anchors, height, or layout is often structural. Confirm with Orange County or Lake County, or the city building department for Winter Garden, Ocoee, Oakland, Clermont, or Minneola. We do not pull permits. We do not tell you a ZIP is exempt.
Tell us the city or ZIP, whether you want debris mesh or denser insect mesh, and whether this is one bay or the whole cloth. Orlando West Pool Care matches you with a local tech for that rescreen. Get a quote on the request form. There is no phone number published on this site.
Sources
- Florida Climate Center, Orlando 1991–2020 monthly normals (rain and temperature)
- NOAA Climate Prediction Center, UV Index forecast (solar UV as climate context)
- NOAA National Hurricane Center, Tropical Cyclone Climatology (Atlantic season 1 June–30 November)
- Florida Statute 515.29, Residential swimming pool barrier requirements
Is 18×14 or 20×20 better for a Central Florida pool cage?
18×14 is the common debris mesh with more airflow. 20×20 is finer. Neither is a wind rating. Pick 18×14 if oak and breeze are the job. Pick 20×20 if you want smaller insects stopped and will accept less air. No-see-um is denser still.
Will no-see-um mesh make the lanai much hotter?
Denser cloth has less open area, so less airflow. We will not invent a temperature delta or a brand test. On an August west Orlando deck that already sits under 91.6°F climate normals, that trade is real.
Does finer mesh mean I do not need to rescreen as often?
No. UV and rain age the fiber. NOAA’s UV Index and the Florida Climate Center rain table are why the cloth fails in this metro. Count changes hole size. It does not cancel sun.
Can the weekly pool tech choose the mesh?
Weekly cleaning is water. Mesh is a separate match. Put 18×14, 20×20, or no-see-um in the notes if you already know. If you do not, say what is getting through — leaves, mosquitoes, or dusk bites.