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Top rated greenhouse covering plastic

AI-generated summary · updated July 27, 2026 · verify details before purchase.

  1. Best overall

    Farm Plastic Supply 6 Mil Clear Greenhouse Plastic

    4.5/5 $50-$150

    Heavy-duty 6 mil polyethylene film with UV protection, excellent light transmission and durability for long-term greenhouse use.

    • Strong and tear-resistant
    • Good light transmission
    • UV treated for longevity
    • Can be heavy to handle
    • Not anti-drip
  2. Best value

    BWI Companies 6 Mil 4-Year Greenhouse Film

    4.3/5 $60-$120

    Affordable 4-year UV-treated film offering good strength and clarity for hobby greenhouses.

    • Cost-effective
    • UV protection
    • Easy to cut
    • Shorter lifespan than premium options
    • May yellow over time
  3. Best for cold climates

    Growers Edge 4-Year Greenhouse Film 6 Mil

    4.6/5 $70-$200

    Thermal film with infrared additive to retain heat, ideal for extending growing season in cooler regions.

    • Heat retention properties
    • Durable 6 mil
    • UV stabilized
    • Higher price
    • Slightly reduced light transmission
  4. Budget pick

    PlasticSheets.com 4 Year Greenhouse Film 6 Mil

    4.4/5 $40-$100

    Budget-friendly 6 mil film with 4-year UV warranty, suitable for small to medium greenhouses.

    • Low cost
    • Decent lifespan
    • Lightweight
    • Less tear resistant
    • Not for extreme weather
  5. Best light transmission

    PolyMax 6 Mil 4-Year UV Greenhouse Film

    4.5/5 $50-$130

    High clarity film allowing maximum light penetration, perfect for seedlings and light-sensitive plants.

    • Excellent clarity
    • UV treated
    • Flexible even in cold
    • Less thermal retention
    • Slightly thinner feel
  6. Most durable

    Greenhouse Megastore 7 Mil 4-Year Film

    4.6/5 $80-$200

    Extra-thick 7 mil film with anti-drip and UV protection, built to withstand high winds and heavy snow.

    • Very thick and tough
    • Anti-drip coating
    • Long 4-year warranty
    • More expensive
    • Heavy to install
  7. Small greenhouses

    DW 6 Mil 4-Year Clear Greenhouse Plastic

    4.3/5 $45-$90

    Compact rolls perfect for small hoop houses or cold frames, offering good value for limited spaces.

    • Convenient sizes
    • Easy to install
    • UV protected
    • Limited width options
    • Not for large structures
  8. Temporary greenhouse

    Hummert International 6 Mil 3-Year Film

    4.2/5 $30-$70

    Economical 3-year film ideal for seasonal use or as a temporary cover during winter protection.

    • Very affordable
    • Lightweight
    • Easy to handle
    • Shorter lifespan
    • Less UV stability

Buying advice

When choosing greenhouse plastic, consider thickness (mil), UV treatment for longevity, and special features like anti-drip or infrared additives. For cold climates, thermal films help retain heat; for bright areas, high clarity is best. Budget films may need replacement more often. Always check Amazon's 'Patio, Lawn & Garden' category to ensure the product is listed there.

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