Picking the best polycarbonate greenhouse? [3 outstanding greenhouse kits]

Picking out the best polycarbonate greenhouse for my garden felt overwhelming at first with all the choices out there. I’ve spent hours looking at different polycarbonate greenhouse kits, comparing what each one offers.

Along the way, I’ve figured out that the critical things to look for are how long-lasting it is, how big it is, how well it lets air through, and how easy it is to put together. After all that research, the Jocisland 8x12x7.5 FT greenhouse was the best option.

best polycarbonate greenhouse
Image credit: canopia.com

Quick review

  1. Best for Large Gardens: Jocisland 8x12x7.5 FT Greenhouse.
  2. Best Overall Quality: 6.2×10.2 FEET Hybrid Polycarbonate Greenhouse.
  3. Best Value: Palram – Canopia Hybrid 6′ x 8′ Greenhouse.

Image Product Features
Jocisland 8x12x7.5 FT GreenhouseOutdoor Aluminum Polycarbonate Structure
Ventilation and Rain Gutter
4 Swing Doors with Hook
Walk-in Design for Backyard
Palram – Canopia Hybrid 6′ x 8′ Greenhouse – SilverHybrid model
Silver aluminum frame
Compact size suitable for smaller spaces
6.2×10.2 FEET Hybrid Polycarbonate Greenhouse2 Vent Windows
Lockable Door
Walk-in Hobby Greenhouse
Heavy Duty Aluminum Frame
Ideal for Outdoor Garden Backyard

Jocisland 8x12x7.5 FT Greenhouse

I recently had the opportunity to set up the Jocisland 8x12x7.5 FT Greenhouse in my backyard. This is one of the best polycarbonate greenhouse kits available. The twin-wall polycarbonate panels stand out among the best polycarbonate greenhouse kits. They’re as clear as glass panels but much better at keeping heat.

Adding roof vents was excellent for controlling the temperature and ensuring light transmission.

This greenhouse is different from others I’ve tried because it is user-friendly.

The four swing doors with hooks are handy for getting in and out and flowing the air. And I’ve got to say, the rain gutter system is an intelligent touch for dealing with water when it pours.

The quality of these panels, how well the roof vents work to keep the temperature just right, and the whole design to let in plenty of light and help plant growth puts this greenhouse at the top of my list of polycarbonate greenhouse kits.

Image credit: www.greenlivingoffgrid.com

I would give it a solid 4.8 stars. My minor critique would be the initial setup, which, while straightforward, did require some effort and time to get right.

I installed it on a concrete slab to ensure maximum stability and longevity.


  • Durable Panels. Offers the clarity of glass with added durability and insulation, ideal for all weather conditions.
  • Optimal Light Transmission. Twin-wall panels ensure plants receive ample sunlight for growth.
  • Effective Temperature Regulation. Roof vents provide excellent airflow, helping to maintain the ideal temperature for plant growth.
  • Easy Access and Ventilation. Four swing doors with hooks enhance accessibility and ventilation, making it easy to manage and care for plants.
  • Rain Gutter System. A built-in rain gutter helps manage water and protect plants during rainy periods.
  • Aesthetic Appeal. The design is functional and adds visual interest to any backyard.
  • Walk-in Design. Provides plenty of space for various plants and easy movement within the greenhouse.


  • Assembly Effort. The initial setup can be time-consuming, requiring effort to assemble correctly.

Palram – Canopia Hybrid 6′ x 8′ Greenhouse

I also recently invested in the Palram – Canopia Hybrid 6′ x 8′ Greenhouse, and I’ve been compelled to share my thoughts with those looking to pick polycarbonate greenhouse kits.

Adding twin-wall polycarbonate panels to the design has changed the game, especially considering how they stack up against old-school glass panels.

What I love about this greenhouse is its sturdy aluminum frame. That strength is crucial since I was looking for a winter greenhouse.

All in all, this polycarbonate greenhouse kit has gone beyond what I hoped for.

Image credit: canopia.com

I’d rate it a strong 4.7 stars. I’m taking off just a bit because I wish there were more ways to customize the shelving and the inside setup.


  • Excellent Light Transmission. The twin-wall polycarbonate panels ensure that plants receive ample sunlight.
  • Superior Heat Retention
  • Strong Aluminum Frame
  • Proper Ventilation
  • Durability Over Glass. Twin wall panels offer the clarity of glass with added durability and insulation benefits.
  • Aesthetic Appeal


  • Limited Customization

6.2×10.2 FEET Hybrid Polycarbonate Greenhouse

I recently had the pleasure of setting up the 6.2×10.2 FEET Hybrid Polycarbonate Greenhouse in my backyard, and from the outset, I was impressed by the quality of the polycarbonate panels.

The lockable door adds a layer of security that gives me peace of mind.

Putting this greenhouse together was a breeze compared to other kits I’ve looked at.

The instructions were easy to follow, and the greenhouse kit was designed to help smooth the assembly process.

I’d rate it a solid 4.5 stars.

For anyone in the market for polycarbonate greenhouses, this model represents a fantastic balance of quality, durability, and functionality.


  • Durable Polycarbonate Panels
  • Easy Assembly. Among greenhouse kits, this one is relatively easy to put together.
  • Excellent Ventilation
  • Security Features. The lockable door
  • Aesthetic Appeal. The greenhouse enhances the beauty of your backyard with its design.
  • Heavy-Duty Aluminum Frame


  • Initial Investment. The upfront cost might be higher than less durable options.
  • Assembly Required. While the assembly is straightforward compared to other greenhouse kits, it still requires time and effort.
  • Room for Improvement in Customization. The greenhouse could benefit from more shelving and storage options.


What is the best polycarbonate for a greenhouse?

In my experience, the best polycarbonate for a greenhouse is a twin-wall polycarbonate panel. These panels are excellent at retaining heat while ensuring high-light transmission, crucial for the growth of plants. Additionally, they offer protection against UV rays, which is essential for both plant protection and the longevity of the greenhouse panel itself.

How thick should polycarbonate be for a greenhouse?

I’ve found that a 4-6mm thickness is ideal for most hobby gardeners. This thickness strikes a good balance between durability, heat retention, and light transmission. It’s thick enough to retain heat effectively during cooler months, allowing diffused light to reach the plants, and promoting healthy growth.

Are polycarbonate greenhouses worth it?

From my perspective, polycarbonate greenhouses are worth it. They are more durable than glass, offer better insulation for retaining heat, and protect against harmful UV rays. Plant protection and energy efficiency benefits make polycarbonate greenhouses a valuable investment for hobby gardeners looking to extend their growing season.

What is the life expectancy of a polycarbonate greenhouse?

I believe a well-maintained greenhouse can last between 10 and 20 years. The longevity largely depends on the quality of the polycarbonate panels and the frame’s construction. Protecting the panels from physical damage and cleaning them regularly to prevent the buildup of dirt and algae can significantly extend the life of your greenhouse.

Which greenhouse brand is best?

In my experience, Palram-Canopia and Jocisland stand out for their quality and durability. Their greenhouses offer excellent light transmission and are built with solid frames that withstand various weather conditions. They are great options for hobby gardeners who prioritize retaining heat and ensuring their plants receive enough diffused light throughout the year.

Conclusion on polycarbonate panels

In wrapping up my exploration of how to pick a greenhouse, it’s clear that the Jocisland 8x12x7.5 FT Greenhouse rises above the rest as the premier choice. My journey through countless hours of research and comparison led me to this conclusion, primarily due to its unmatched durability, extensive space, and superior ventilation system.

For me, choosing the Jocisland greenhouse was about investing in a product that meets my current gardening needs and anticipates future ones.