*Last Updated: June 2024

The 5 Best Polycarbonate Greenhouses [Ranked]

Polycarbonate Greenhouses

If you are looking for an affordable but rugged and longlasting greenhouse, a polycarbonate greenhouse might be a good choice for you.

Tough and light-weight, UV-treated polycarbonate is an advanced, and top quality paneling material for garden greenhouses. It's easily obtainable in various thicknesses.

Polycarbonate greenhouses provide you the clearness of glass, but with extra ruggedness and specialized insulation properties.

Polycarbonate panelings possess a fairly lengthy life-span of fifteen years or even longer in most areas- and you can always swap out the panels should they become defective.

Let's take a look at 5 of the best-selling polycarbonate greenhouses on the market today. 

Contents

Comparing Them

SaleBestseller No. 1
AirWire 12x8 FT Greenhouse for Outdoors, Quick Setup Polycarbonate Greenhouse with Roof Vent, Aluminum Large Walk-in Greenhouse for Outside Garden Backyard, Black
  • 【Quick Setup Structure】AirWire greenhouses are designed to be easy to assemble with an intuitive quick-install system and user-friendly slide-in panels. Our team fine-tuned the installation after more than 500 rounds of rigorous testing, resulting in a 50% faster installation and 35% more stability, ensuring gardeners can enjoy cultivating flowers faster.
SaleBestseller No. 2
VIWAT 4x6 FT Greenhouse for Outdoors, Polycarbonate Greenhouse with Quick Setup Structure and Roof Vent, Aluminum Large Walk-in Greenhouse for Outside Garden Backyard, Black
  • 【Quick Setup Structure】Designed for simplicity with a quick-install system and slide-in panels, our greenhouse—perfected through over 500 tests—boosts setup speed by 40% and enhances stability by 35%. This design ensures a swift, solid build, allowing gardeners to focus more on their passion for planting.
Bestseller No. 3
Outsunny 20' X 8' Aluminum Greenhouse Polycarbonate Walk-in Garden Greenhouse Kit with Adjustable Roof Vent, Rain Gutter and Sliding Door for Backyard, Patio, Clear
  • [ Walk-In Design ]: You can grow plants all year long in the roomy polycarbonate greenhouse while shielding them from the cold. Vegetables, fruit, herbs, and flowers thrive in our outdoor greenhouses.
SaleBestseller No. 4
VIWAT 6x7.5 FT Greenhouse for Outdoors, Polycarbonate Greenhouse with Quick Setup Structure and Roof Vent, Aluminum Large Walk-in Greenhouse for Outside Garden Backyard, Black
  • 【Quick Setup Structure】Designed for simplicity with a quick-install system and slide-in panels, our greenhouse—perfected through over 500 tests—boosts setup speed by 40% and enhances stability by 35%. This design ensures a swift, solid build, allowing gardeners to focus more on their passion for planting.
Bestseller No. 5
YITAHOME 12x6FT Polycarbonate Greenhouse Large Heavy Duty Green Houses Outdoor Aluminum Greenhouses with Sliding Doors Vent Window Premium Walk-in Greenhouse for Garden Backyard, Matte Sliver
  • UPGRADED MATERIALS-12x6FT polycarbonate greenhouse is constructed using a premium aluminum alloy frame, along with reinforced rods on the sides and diagonal rod fixation for enhanced sturdiness and load-bearing capacity; Double-wall polycarbonate boards with 4mm UV protection effectively blocks 99% of UV radiation to protect your plants

Building a Monticello Greenhouse

Why we like polycarbonate greenhouses

Polycarbonate greenhouses are really trending nowadays. There are some really great resources for helping you make a decision online if you are thinking of purchasing them.

Polycarbonate is a highly rigid plastic which provides some of the best features of glass, but is tougher and impact resistant. The polycarbonate paneling that structures the greenhouses walls provides durable strength and supreme heat retention properties.

The inside of the greenhouses is more effectively insulated, which is obviously conducive to plant growth. Besides this heat retention and insulative property, the multi-wall polycarbonate paneling provides diffuse light that is designed to increase plant growth rates.

The Benefits Of polycarbonate greenhouse paneling

What are customers saying?

  • One user who purchased the MIC polycarbonate and aluminum greenhouse complained that high winds actually bent the structure so that he actually had to reinforce it with plywood.
  • Some of the cheaper greenhouses that are in high wind areas will need to be reinforced with plywood or PVC pipe, especially if they are kept out during the winter and not stored.
  • Another DIY fix for the polycarbonate hot houses is to do some silicone caulking. One reviewer even caulked all of the panels and panes inside of the greenhouse to ensure that the rain did not seep in, and heat did not escape.
  • Another important purchasing consideration is to determine whether your greenhouse comes with shelving or not.
  • Some users chose to place their greenhouses on wood decks where they could easily anchor them.
  • People who bought the Palram Nature Series Hybrid Hobby Greenhouse were pleasantly surprised at how durable it was even when confronting 50 mile-per-hour Oklahoma winds- even with an automatic vent opener.
  • Depending on the greenhouse you choose, sometimes the instructions are not great quality.
  • Most people who endeavor to operate their own greenhouse usually have some commonsense handicraft capabilities and can figure out how to assemble them without too much trouble. Though it is important to get another person to help you out when erecting them.
  • Another reviewer writes of their Paltam polycarbonate greenhouse that it is relatively sturdy and that it warms up quickly with the sunrise, but they do have to open their vent manually at night to help their greenhouse crops grow.
  • Some interesting features that can be included with these styles of green houses are rain gutters, roof vents, magnetic catching doors, aluminum reinforced frames, snow load kits, rust resistant coating as well as the protection of a strong shatter-resistant polymer.
  • People who purchased the Grandiose Elite polycarbonate greenhouse were happy that the packaging was intuitively designed to help the assembly process- there were five boxes that were numbered and each of the instruction steps corresponded so that it was pretty easy to understand how to linearly construct their greenhouse.

Summing Up

When choosing a greenhouse, users were pretty surprised at how cheap and long-lasting they have become- especially a cold frame greenhouse. There's so many more styles nowadays than there used today which means that any backyard hobbyist and horticulturalist can find a design that works for them in their own backyard.

One reason that people have begun returning to backyard garden cultivation with greenhouses is concerned over food security. As the cost of food has risen and the possibility of global calamities seemingly more probable day by day, having a greenhouse with seedlings, tomatoes, and all manner of other vegetables is a great way to protect you and your family and increase their food security.

As well, climate change concerns have made outdoor growing conditions more erratic which is an incentive to purchase a polycarbonate greenhouse and control the environment artificially. Some of the benefits of greenhouse gardening include extending the growing season; having access to fresh vegetables year-round; an ability to protect seed germination from inclement weather; protection of seedlings from insects, parasites and pests; protection of sprouts and seedlings from pesky birds.

Controlling the greenhouse environment can save money on plants as well as enabling you to grow plants in containers or in the ground directly.

If you are considering purchasing a polycarbonate greenhouse, Do some extensive reading prior to purchase and figure out which model is best for you. Important to remember that some greenhouses will require structural reinforcement as well as caulking to keep them in good standing for the long-term.


    The Top 5 Team
     

    We are a team of product researchers that specializes in assembling comprehensive buying guides. Our team has a variety of backgrounds, with a mixture of soft and hard sciences represented. Check out our About page to read more about our reviews and editorial process.

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