Best Polycarbonate Greenhouses of 2025

The Selections Polycarbonate Sheets are perfect for your greenhouse needs. This pack includes 20 sheets, each measuring 122cm high by 62cm wide, providing ample coverage for various projects. With a thickness of 4mm, these sheets offer durability and strength, ensuring they can withstand the elements. The twin-walled design enhances insulation, helping to maintain a stable temperature inside your greenhouse. Additionally, the UV stabilisation on one side protects your plants from harmful rays, making these sheets a great investment for any gardener.

The GARDEBRUK® Twin Wall Sheets are perfect for a variety of applications, whether you need replacements for your greenhouse or materials for a DIY project. Their lightweight design allows for easy transport and customisation, so you can easily cut them to size using common tools. Made from robust polycarbonate, these sheets offer high weather resistance, ensuring they withstand impacts, hail, and UV rays. Plus, their flexibility allows for straightforward installation, making your projects hassle-free.

The Palram Mini Greenhouse offers a maintenance-free solution for your gardening needs. With its raised garden bed and convenient storage compartment, you can easily organise your gardening tools and supplies. The clear polycarbonate panels provide over 90% light transmission, ensuring your plants receive ample sunlight for healthy growth. Additionally, the adjustable lid allows you to create the ideal environment for your plants, accommodating varying temperatures and conditions.

The GiantexUK Mini Greenhouse offers a spacious inner space of 76 x 57 x 111 cm, featuring two adjustable shelves that allow you to cultivate a variety of plants. Made from premium fir wood, this greenhouse ensures durability and is coated with waterproof paint for long-lasting use. For optimal plant health, you can enjoy good ventilation by opening the two doors and the skylight, allowing sunlight in while protecting plants from rain. The stable construction enhances durability, ensuring your greenhouse withstands the elements effectively.

The Canopia Harmony Greenhouse features clear, virtually unbreakable polycarbonate panels that allow over 90% light transmission, ensuring your plants receive plenty of sunlight for healthy growth. Its sturdy, rust-resistant aluminium frame guarantees long-lasting durability, meaning you can enjoy gardening for years to come. The included vent and gutters enhance air circulation and manage rainwater effectively, creating an ideal environment for your plants. Additionally, the maintenance-free design saves you time and effort, allowing you to focus on nurturing your garden.

The Palram Mythos Greenhouse is designed to enhance your gardening experience. Its TwinWall polycarbonate panels are virtually unbreakable and allow over 70% light transmission, ensuring your plants receive ample sunlight. The sturdy, rust-resistant aluminium frame adds durability, making it a long-lasting addition to your garden. With included vents and gutters, you can maintain ideal growing conditions while managing rainwater effectively. Plus, the galvanized steel base provides extra stability, giving you peace of mind as you cultivate your plants.

The Outsunny Mini Greenhouse is designed to offer effective protection for your plants. Its transparent polycarbonate board keeps them warm while shielding against light winds and rain, helping to extend their growing season. With an openable top cover, you can ensure good ventilation, allowing fresh air and sunshine to promote healthy growth. The tilted design prevents rainwater accumulation, keeping your plants safe and dry. Constructed from natural solid wood, this greenhouse provides a stable and durable environment for your plants to thrive.

The Plantpak Grow House is an elegant solution for gardeners with limited space. Its solid wood construction in Dove Grey adds a charming touch to your garden. With three adjustable shelves, you can easily customise the space for different plants and maximise your growing area. The durable 5mm thick UV-treated polycarbonate glazing protects your plants from harsh weather while allowing plenty of sunlight in. Additionally, the unique hinged design with locking stays lets you open and tilt the roof for optimal ventilation, ensuring your plants thrive.

The Fellie Polycarbonate Sheets are ideal for various outdoor applications, including greenhouses, carports, and canopies. Their hollow double-layer structure promotes effective drainage, ensuring your installations remain durable and functional. You will appreciate the ease with which these sheets can be cut to your desired shapes and sizes, allowing for tailored use. Made from premium polycarbonate, they are not only waterproof and UV resistant but also boast strong flame retardancy, ensuring long-lasting performance in different weather conditions.

The Rowlinson Mini Greenhouse is a versatile solution for your gardening needs. It features two lifting lids with adjustable height settings, allowing you to create the perfect environment for your plants. The twin walled polycarbonate glazing provides excellent insulation, helping to regulate temperature and protect against harsh weather. Additionally, the two storage shelves offer ample space to organise your gardening tools and supplies, keeping everything within easy reach. This product is designed for easy assembly, making it an ideal choice for both novice and experienced gardeners.