Use case · Greenhouse Glazing
Grow year-round under crystal-clear vinyl.
Let the light in and keep the cold out. Our marine-grade clear vinyl makes a bright, warm, weatherproof greenhouse skin — UV-stable, tear-resistant, and easy to cut to any frame.
✓ High light transmission ✓ Cut to your frame ✓ Ships in 24 hours
Recommended for this project
Everything you need to glaze your greenhouse
Why clear vinyl?
A bright, warm skin for your growing space.
Clear vinyl glazing floods your greenhouse with the light plants crave while sealing in warmth and humidity. It's the affordable, flexible alternative to rigid panels — and unlike thin poly film, it won't shred in the wind after one season.
Marine-grade clear vinyl is the smart pick: it stays supple in the cold, resists UV yellowing and mildew, and cuts cleanly to fit hoop houses, lean-tos, cold frames, and custom frames alike. Roll it out, fasten it down, and start growing.
Bright, even light
High transmission keeps seedlings stocky and crops productive.
Holds heat & humidity
Extend your season and protect plants from frost overnight.
Weatherproof & tough
UV-stable and tear-resistant — built to last season after season.
Compare your needs
Which gauge is right for your greenhouse?
Gauge is the thickness of the vinyl. Thinner gauges transmit the most light; thicker gauges hold more heat and stand up to wind. Here's how they compare for glazing.
| Gauge | Light Clarity | Insulation | Best Climate | Typical Use |
|---|---|---|---|---|
| 12 Ga ~0.012" |
|
|
Mild / South | Season extension, cold frames, max light |
| 16 Ga ~0.016" |
|
|
Moderate | The all-rounder — year-round veg & herbs |
| 20 Ga ~0.020" |
|
|
Cold / North | Windy or cold sites, full winters |
| 30 Ga ~0.030" |
|
|
Extreme | Harsh winters, tropicals, heavy structures |
Not sure? Take the 30-second quiz and we'll recommend a gauge.
How cold do your winters get?
Where the greenhouse will stand through the season.
What matters more to you?
What kind of frame are you covering?
Our recommendation
Our recommendation
Our recommendation
Our recommendation
Built by real customers
Greenhouses built with our vinyl
Learning resources
Read up before you build
DIY Indoor Greenhouse: Tips and Ideas
Not everyone has the yard space—or the right climate—for an outdoor greenhouse. Long winters, small apartments, or urban living can make it tough to keep plants alive, let alone thriving. But that ...
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Greenhouse Vinyl vs Polycarbonate: Which Is Better for Your Plants?
When it comes to building or upgrading a greenhouse, one of the most important decisions is what material you’ll use for the covering. The “skin” of your greenhouse determines how much sunlight you...
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Choosing the Right Vinyl Gauge for Porch Windows, Greenhouses, and More
Selecting the correct vinyl gauge for outdoor applications like porch windows, greenhouses, and patio enclosures is essential for ensuring durability, clarity, and weather resistance. Homeowners an...
Read moreFrequently Asked Questions
16–18 gauge is the affordable option and works fine in mild climates. 20–30 gauge balances light transmission with insulation for most of the country. 40–80 gauge is the thickest option and best for cold climates where heat retention matters most.
No — it's UV-treated to resist yellowing and degradation from sun exposure. The Premium (Flexa Pro+) option adds a scratch-resistant coating on top of that for longer-lasting clarity.
Yes. It's designed to offer excellent clarity and light transmission while still providing weather protection — the tradeoff is that thicker gauges (better insulation) transmit slightly less light than thinner ones, which is why climate should drive your gauge choice.
For rigid panel frames, grommets and a grommet tool let you fasten the vinyl directly to the structure. For hoop or dome frames, the vinyl is flexible enough to wrap and stretch over the frame, with clear vinyl tape used to seal seams.
Use a soft cloth with mild soap — avoid ammonia-based cleaners like Windex, which cause hazing. A dedicated clear vinyl cleaner kit is formulated specifically to protect clarity without damaging the surface.
With proper care (regular cleaning, avoiding ammonia-based products), it holds up well for multiple growing seasons. Heavier gauges also resist shrinking better over time than thinner ones.
Yes — clear vinyl tape works for small seam repairs and tears, or you can order a scrap box/remnant piece if you need a slightly larger patch without buying a full roll.
