Palram Canopia Hobby Gardener Greenhouse in Green 8x20

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8x20 Palram Canopia Rion Hobby Gardener Greenhouse - in situ, angle view
  • 8x20 Palram Canopia Rion Hobby Gardener Greenhouse - in situ, angle view
  • 8x20 Palram Canopia Rion Hobby Gardener Greenhouse - in situ, isolated angle view
  • 8x20 Palram Canopia Rion Hobby Gardener Greenhouse - vents
  • 8x20 Palram Canopia Rion Hobby Gardener Greenhouse - door handle
  • 8x20 Palram Canopia Rion Hobby Gardener Greenhouse - door
  • 8x20 Palram Canopia Rion Hobby Gardener Greenhouse - padbolt
  • 8x20 Palram Canopia Rion Hobby Gardener Greenhouse - door framing
  • 8x20 Palram Canopia Rion Hobby Gardener Greenhouse - framing
  • 8x20 Palram Canopia Rion Hobby Gardener Greenhouse - warranty
  • 8x20 Palram Canopia Rion Hobby Gardener Greenhouse - dimensions

Palram Canopia Hobby Gardener Greenhouse in Green 8x20

Save £348.71

Product Code - 121011091


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Usually delivered: 7-10 Working Days.

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Palram Shade Kit
Palram Shade Kit

The Greenhouse Shade Kit can be secured to the inner framework of any Palram greenhouse. It helps prevent excessive heat build up and will shield delicate plants from direct sunlight exposure. It is quick and straightforward to install and can be easily re-positioned for changing seasons or crops. Comes with 10 plant hangers to secure it to your greenhouse framework. 230 x 265cm in size (larger greenhouses may require more than one shade kit). Made from a durable woven material and has UV protection.

Palram Automatic Roof Vent Opener
Palram Automatic Roof Vent Opener

The Palram Automatic Vent Opener is designed to help control the temperature and humidity levels in your greenhouse. It helps to provide ventilation for any Palram Greenhouse and does so by opening and closing the vent automatically with changes in temperature. As the air inside the greenhouse warms, the vent gradually opens to allow the correct amount of airflow into the greenhouse until the optimal temperature is reached. The vent arm uses wax that expands and contracts with changes in temperature, which is how the mechanism is able to open and close. The Automatic Vent Opener therefore operates without the use of electricity. Suitable for all Palram greenhouses with opening roof vents and easy to install.

Palram Drip Irrigation Kit
Palram Drip Irrigation Kit

The Palram Drip Irrigation Kit helps to keep your plants properly hydrated. It can be set up to distribute water evenly around your greenhouse, while also eliminating sediments from the fluid. Setting it up is easy and your plants will flourish as a result. It features a pressure regulator and filter system, and a dripping regulator which creates an equal and controlled dispersal of water. The kit includes 10m drip lines; 16 droppers; 19mm adapter; 4 T connector 4/6mm.

Palram Hanging Trellising Kit
Palram Hanging Trellising Kit

The Palram Hanging Trellising Kit allows you to easily hang plants and vine cops in order to protect their delicate stems. It will also allow you to add much needed support to taller-growing plants while offering an excellent level of sunlight exposure. The Trellising kit is compatible with all Palram greenhouses and is quick and easy to install and use. The kit includes 6 Roller hook spools with 25m twine; 3 types of support clip for different vine crops; 48 tomato clips; 12 radial support hooks; and 12 courgette clips. 

Palram Steel Workbench
Palram Steel Workbench

This two-level adjustable steel work bench is perfect for working at in your greenhouse or for helping to organize your space. It offers a potting and working area on top with a sturdy storage shelf below. These two shelves provide ample storage and work space and will withstand evenly distributed weights of up to 75kg per shelf. The lower shelf can be adjusted in height to meet your needs. It is made from durable galvanized steel, which will stand up to a challenging greenhouse environment, and is easy to assemble. Top shelf can be assembled “upside-down” to be used as a soil tray. 115cm x 51cm x 18cm (Length x Depth x Height)


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  • Palram Canopia Hobby Gardener Greenhouse in Green 8x20£2,330.82


            Introducing the Palram Canopia Hobby 8x20 Gardener Large Greenhouse, a perfect blend of visual elegance, robust construction, and easy assembly. This expansive 8x20 model caters excellently to gardening enthusiasts who demand a perfect mix of aesthetics and functionality in their horticultural pursuits.

            The resilience of this greenhouse is anchored in its solid frame, made from UV-protected resin. This frame is expertly pieced together using the pin and lock resin connectors, ensuring enhanced durability and a stable structure. Enclosing this frame are the high-quality twin-wall polycarbonate panels, renowned for their exceptional strength, safety, and thermal insulation. These panels are resilient enough to withstand high impacts and hail, with a thickness of 4mm at the roof and6 mm at the walls, providing a formidable barrier against diverse weather conditions.

            The light-diffusing properties of these panels are particularly noteworthy. They protect plants from excessive sunlight while facilitating an impressive 80% light transmission, vital for plants that require moderated light exposure. Moreover, these panels are adept at blocking harmful UV rays, ensuring 100% UV protection. This feature helps to prevent discolouration, fractures, or shattering over time, contributing to the greenhouse's long-lasting, maintenance-free nature.

            Another remarkable feature is the heavy-duty, 100% UV-protected extruded resin frame with rubber sealing strips. These strips enhance the overall insulation, creating an ideal nurturing environment for various plants. Assembling this greenhouse is a straightforward DIY affair, thanks to the efficient pin & lock connector system, which prevents the need for tools and eases the installation process.

            The design also incorporates thoughtful accessibility features. The greenhouse includes a double door with a handle and holder, facilitating easy and convenient access. The barn-shaped design is more than just visually appealing; it offers ample headroom, ensuring a spacious and comfortable area for all gardening activities.

            It provides an ideal habitat for many plants to thrive under the best conditions. It’s the perfect example of a large polycarbonate greenhouse that is durable and maintenance-free.


            After Care - Maintenance free

            Warranty - 7 year limited warranty

            Amount of Light Transmission – Walls and Roof 80% light transmission 

            Roof Style - Barn Style

            Roof Vents - 4

            Lock -  Handle and holder

            Wall Glazing - 6mm Twin-wall polycarbonate

            Roof Glazing - 4mm Twin-wall polycarbonate

            Frame - Heavy-duty 100% UV-protected extruded resin frame 

            Snow Load - 90 kg/m²

            Wind Resistant - 75 km/h

            About Your Order

            Palram Canopia plastic garden buildings and polycarbonate greenhouses offer a hassle-free experience. A straightforward assembly experience is on offer, with all the necessary fixtures and fittings included to ensure a smooth set-up. You'll be pleased to know that there's no need for tools, making the assembly process even simpler. All products include comprehensive, easy-to-follow instructions to guide you every step of the way.

            Please note: Images may depict furnishings and accessories; these are for illustration purposes only and are not included with your order.

            Plastic Greenhouse Maintenance

            With its durable polycarbonate panels and heavy-duty resin frame, this product is expertly designed to be maintenance-free. The only upkeep you'll need to consider is the occasional cleaning, ensuring longevity and ease of use for years.

            About Palram

            Since its inception during the plastic boom of the mid-1960s, PALRAM has evolved into a leader in the thermoplastic industry through over 50 years of innovation and research. Palram - Canopia, a branch of the PALRAM Group, utilises these top-tier polycarbonate and acrylic panels to craft a diverse range of Polycarbonate Garden Structures. 

            With Palram-Canopia, bring the strength and sophistication of advanced materials into your garden. More than just expert producers of high-grade plastics, they are passionate creators of outstanding plastic garden buildings, including greenhouses, plastic sheds, patio covers and gazebos.


            ALL DELIVERIES ARE DELIVERED TO KERBSIDE OR DRIVEWAY. This product is delivered flat packed, direct to your home and is supplied with a set of instructions to support assembly.

            Our telephone lines are exceptionally busy to avoid queuing you can use the ‘Help’ facility which is on every product page.

            To protect both you and our drivers, we request that you remain within your property while they complete the delivery.

            Booking Delivery

            Your order will be dispatched by the manufacturer Palram Applications. If you have ordered more than one item, they may arrive at different times.

            Our teams are working hard to ensure your order is delivered within the timescale indicated on the product page. For customers in certain areas (e.g. Scotland and Wales) the timescale for these areas will be extended by up to 10 working days (this may be longer during peak times). Please note lead times are counted in working days (Monday – Friday) excluding Bank Holidays.

            Postcodes with extended leadtimes: AB, DD1-7, DD8-11, FK18-21, G84, HS1-8, HS9, IV1-20, IV21-26, IV27, IV28, IV30-36, IV40-63, KA27-28, KW1-14, KW15-17, PA20, PA21-38, PA41, PA42-49, PA60, PA61, PA62-76, PA77-78, PA80, PH1-5, PH6-29, PH30-35, PH36-39, PH40, PH41-44, PH45-50, ZE

            Prior to Delivery

            With Palram products, you will be sent two text messages. The first message will inform you that your order is being processed. The second message will be sent closer to the end of the delivery timescale, advising you that your order has been dispatched and will be delivered by one of two couriers (TNT or DX).

            Please note that both elbec and Palram will be unable to supply any further information on your order during this timescale. 

            Upon Delivery

            Your order will be delivered kerbside or on your driveway. Due to health and safety, and insurance liabilities, the driver will not be able to take your goods to the back of your property but – upon request – may place the product at the side of the house if there are no access issues. This is to avoid risking damage to your property while delivering to an unsafe location. We will not be able to go through your property.

            We recommend against arranging for a third party to install the product before its delivery and checking that all parts are present, and we cannot be held liable for any third-party costs caused by delays.


            Please note: all imperial measurements are approximate, and the Canopia Palram Greenhouses are made from metric measurements. We would recommend that the base is at least 50mm bigger in each direction.

            Product Name:
            Palram Canopia Hobby Gardener Greenhouse in Green 8x20
            Colours Available:
            Exterior Width (Door Side):
            2.66m (8'9")
            Exterior Length:
            6.41m (21'0")
            Interior Width:
            2.44m (8'0")
            Interior Length:
            6.22m (20'5")
            Footprint Width:
            2.60m (8'6")
            Footprint Length:
            6.36m (20'10")
            Ridge Height:
            2.08m (6'10")
            Eaves Height:
            1.25m (4'1")
            Roof Type:
            Barn roof
            4mm twin-wall polycarbonate panels
            UV-protected resin
            6mm twin-wall polycarbonate panels
            Extruded PVC Resin base
            4 x manual opening roof vents
            Integrated Guttering:
            Low Threshold Entry:
            Hinged double door
            Door Height:
            1.65m (5'5")
            Door Width:
            1.19m (3'11")
            Door Lock:
            Door Handle:
            Self-Assembly - no tools required
            Optional Assembly:
            Manufacturer's Guarantee:
            7 Year Limited Defects and Workmanship Warranty
            Product Code:
            Manufacturer's Product Code:
            EAN Number:
            Palram Applications
            Country of Origin:
            Click to View Alternative Sizes:
            8x8, 8x12, 8x16


            The Canopia Hobby Gardener Polycarbonate 8x20 Greenhouse is the perfect solution for growing vegetables year-round. The large greenhouse has a strong, heavy-duty resin frame and polycarbonate window panels. Top features include:

            • Barn shape and maintenance-free design
            • Virtually unbreakable twin-wall polycarbonate panels
            • Heavy-duty 100% UV-protected resin frame with rubber sealing strips
            • The double-hinged door facilitates convenient access
            • Light diffusing panels - 80% light transmission
            • 4 adjustable roof vent window for air circulation