Menu Close
  • vector-icon1EXPERT REVIEWED
  • shipping-iconFREE DELIVERY
  • dolley-iconINSTALATION AVAILABLE

Palram Canopia Rion Hobby Gardner 8×20 Green Greenhouse

First Added - August 4 2022
Last Updated - August 4 2022 - 0 Data Points Updated - 51 Data Points Added
Reviewed & curated by a panel of garden building experts. Using methodology 1.1

Product ID: SKU: 702499

Size: 8' x 20'

Merchants Checked: 12

Available From: 2

HomeBase
£3,105.00
See Deal
BuyShedsDirect
£2,549.00
See Deal

Support WhatShed: by making a purchase after clicking a link above, a portion of the sale supports this site.

65
Average Ranked in the Top 9% of Greenhouses.
Position 73 of 836 Greenhouses - Up 73 places from previous update.
Quality of materials
Construction quality
Ease of construction
Value for money

See how our panel of industry experts helped create the impartial judging criteria used to calculate the Expert Score.

Our verdict on the Palram Canopia Rion Hobby Gardner 8×20 Green Greenhouse

The Palram Canopia Rion Hobby Gardner 8×20 Green Greenhouse comes with an apex style roof, holds a 5 Years guarantee, fit with double doors, and is treated using a uv protected process [1]. The windows window used on this particular 8′ x 20′ use a polycarbonate [2] glazing material (Thickness was not specified).

Our experts say this has 4 stand out features. A stand out feature is something found on over 70% of the top 10% of products in a particular category or is an exceptionally good feature as rated by our panel of experts.

1. The polycarbonate construction like the one used on the roof of this greenhouse is rated one of the best by our panel of experts.

2. The polycarbonate roof covering found on this greenhouse is rated to be one of the best by our experts.

3. This polycarbonate glazing material is one that our experts say is one of the best available for windowed greenhouses.

4. A uv protected treatment like the one used on this greenhouse is one our experts are happy to say is one of the best around.

Below is a brief overview of how some of the key points of this greenhouse fairs across the market.

Roofing

Polycarbonate is the material used for the roofing, our experts rate this one of the best forms of roof material and is the only type we’ve found on same-size greenhouses [3]. This roofing material is used on 8% of all greenhouses analysed, and 50% of the top 10% of greenhouses. 22% of 8′ x 20′ greenhouses (6 in total) use polycarbonate construction for the roof, and when taking the average Expert Score of those 8′ x 20′ greenhouses (81), the Palram Canopia Rion Hobby Gardner 8×20 Green Greenhouse is just above the average with an Expert Score of 82.

A 6.0mm thick roof material was used on this greenhouse which is the worst thickness used for a roofing material out of 2 thicknesses identified on same-size greenhouses [4]. It’s used on 1% of all greenhouses and 13% of the top 10% of greenhouses. 7% of 8′ x 20′ greenhouses (2 in total) use a 6.0mm thick roof material.

Polycarbonate is used as the roof covering. Our experts say it’s one of the best roof covering materials, and is also the only kind identified on same-size greenhouses [5]. It comes fitted on 2% of greenhouses and used on 21% of the top 10% of 8′ x 20′ greenhouses. While the Expert Score of the average polycarbonate covered 8′ x 20′ greenhouse is 3 points higher than this item (82 vs the average of 85), you can be sure it’s not the roof covering bring the score down as this one of the highest scoring roof coverings found on 8′ x 20′ greenhouses. 7% of 8′ x 20′ greenhouses (2 in total) make use of a polycarbonate material as a roof covering.

Read full analysis for roofing.

Window

Polycarbonate windows come installed on this greenhouse. As a glazing option, we rate it one of the best out of the 2 glazing types found on 8′ x 20′ greenhouses [6]. This particular type of glazing is used on 8% of all windowed greenhouses and 33% of the top 10% of greenhouses with windows we analysed. Even though the Expert Score of this particular greenhouse is 2 points below the average of 84 for windowed 8′ x 20’s use polycarbonate windows, with it being on 33% of the top 10%, you can be assured that this greenhouse is using a quality glazing type. 12% of 8′ x 20′ greenhouses with windows (3 in total) use polycarbonate windows.

Read full analysis for window.

Height

The height of this greenhouse is 1250.0mm (4′) which is 75% less than the average 8′ x 20′ greenhouse, giving you 940.0mm (3′) less headroom.

Read full analysis for height.

Doors

The door height is 1,650.00mm (5′) tall which is 12% or 194.00mm (0.6′) shorter than the average 8′ x 20′.
The door width is 1,190.00mm (4′) wide which is 1% or 11.00mm (0.0′) wider than the average 8′ x 20′.

Read full analysis for doors.

You Might Also Consider

We found 27 8′ x 20′ greenhouses with comparable specifications. The Palram Canopia Rion Hobby Gardner 8×20 Green Greenhouse has an Expert Score that is 23% higher than average and is £6 less expensive than average. If you are looking for the best value or highest expert scoring greenhouses out of the 27 with comparable specifications the following might be of interest.

Best value – If you are looking for something comparable that costs less, then you could save £2,395 with this vidaXL Portable Polytunnel Greenhouse Steel Frame Walk-in 18 m² Green. It is priced at £154, this is 1555% less than this and has an Expert Score of 60, 22 points less than the Palram Canopia Rion Hobby Gardner 8×20 Green Greenhouse.

Highest Expert Score – With an Expert Score of 87 vs 82 for this product, the 8’x20′ Palram Canopia Glory Grey Large Polycarbonate Greenhouse is the best 8′ x 20′ greenhouse with comparable specifications, and is priced at £2,569, that’s £20 more than the Palram Canopia Rion Hobby Gardner 8×20 Green Greenhouse.

High Wind Area – If you live in a particularly exposed or high wind area then having a greenhouse with a thicker cladding and higher than average frame thickness can be preferable. We found at least 3 greenhouses that have a combination of features that can make them more suited to higher wind areas.
Marlborough Greenhouses 20′ x 8′ Wooden Greenhouse with 4 windows
Marlborough Greenhouses 24′ x 6′ Wooden Greenhouse with 4 windows
Marlborough Greenhouses 22′ x 8′ Wooden Greenhouse with 4 windows

Coastal Consideration – If you live in a particularly wet or harsher environment such as by the coast then you might want to consider something with a more robust pressure treatment or something made from metal or plastic, both materials that are particularly suited to such harsh environments. We’ve found at least 3 greenhouses that have a combination of features that can make them more suited to higher wind areas.
8’x20′ Palram Canopia Glory Grey Large Polycarbonate Greenhouse
8’x20′ Palram Canopia Bella Large Walk In Silver Aluminium Framed Greenhouse
Palram Canopia Rion Hobby Gardner 8×20 Green Greenhouse

Public-Facing – Extra security measures might be more of a concern if you’re placing your building in an area that is more public-facing than a garden. Features such as security windows or even having no windows at all, and the ability to lock all opening doors are usually much more important when you have something that is more public-facing. We found at least 3 greenhouses that have options that you might find a better fit if this is a concern you have.
8’x20′ Palram Canopia Glory Grey Large Polycarbonate Greenhouse
8’x20′ Palram Canopia Bella Large Walk In Silver Aluminium Framed Greenhouse
Marlborough Greenhouses 20′ x 8′ Wooden Greenhouse with 4 windows

More Child Friendly – If you have children and you are looking for something that has that little extra in terms of durability then tougher glazing options might be a better option. Here we have at least 3 other options that will fill those needs.
8’x20′ Palram Canopia Glory Grey Large Polycarbonate Greenhouse
8’x20′ Palram Canopia Bella Large Walk In Silver Aluminium Framed Greenhouse
Palram Canopia Rion Hobby Gardner 8×20 Green Greenhouse

Product Details

Building Type
Cheap Greenhouses, Greenhouses, Large Greenhouses, Plastic Greenhouses, Walk-in Greenhouses
Metric Size (Meters)
8' x 20'
Roof Style
Apex
Door Type
Double Door
Treatment Type
UV Protected
Guarantee
5 Years
External Dimensions
208 x 266 x 641
Product Contains
Product parts, Instructions and tools if required
Additional Information
This product must be anchored to a levelled surface and solid foundation to ensure its stability. Make sure that screws and anchors are compatible with foundation type. Make sure that there are no obstructions between the assembly area and final position. Please refer to the assembly instructions for further guidance.
Additional Assembly Information
Instructions included. Please contact a local tradesperson for installation if required.
Product Dimensions
208 x 266 x 641
Assembly Options
Self Assembly Required
Model Name
Hobby Gardener
Weight Of Product (kg)
150.4
Number Of Doors
1
Base Included
Not Included
Additional Delivery Information
Delivered flat-packed. Once the order has been placed, if you provided a mobile number you will receive a text message when your item is being shipped. If you have provided an email address you will receive a link with tracking details for your order. For larger, 2 man deliveries a 2 hour window slot will be arranged with you.
Roof Covering
Polycarbonate
Window Size (Metric)
nan x nan
Glazing Material
Polycarbonate
Eaves Height (Imperial)
1250.0mm
Eaves Height (Metric)
1250.0mm
Ridge Height (Imperial)
2080.0mm
Ridge Height (Metric)
2080.0mm
Depth Including Overhang (Imperial)
21'
Depth Including Overhang (Metric)
6410.0mm
Width Including Overhang (Imperial)
9'
Width Including Overhang (Metric)
2660.0mm
Depth At Base (Imperial)
21'
Depth At Base (Metric)
6360.0mm
Door Height (Imperial)
1650.0mm
Door Height (Metric)
1650.0mm
Door Width (Imperial)
1190.0mm
Door Width (Metric)
1190.0mm
Roof Material
Polycarbonate
Roof Thickness (Imperial)
6.0mm
Roof Thickness (Metric)
6.0mm
Width At Base (Imperial)
8'
Width At Base (Metric)
2600.0mm
Frame Type
Resin - Green
Door Size (Imperial)
5' x 4'
Door Size (Metric)
1650.0mm x 1190.0mm

Comparisons of Similar Sheds

30-x-6-pressure-treated-tongue-and-groove-greenhouse-super-strength-framing-rim-lock-4mm-toughened-glass-bench-free-install-L-8776375-39581690_122-x-6-pressure-treated-tongue-and-groove-greenhouse-super-strength-framing-rim-lock-4mm-toughened-glass-bench-free-install-L-8776375-39581659_124-x-8-pressure-treated-tongue-and-groove-greenhouse-super-strength-framing-rim-lock-4mm-toughened-glass-bench-free-install-L-8776375-39581651_130-x-8-pressure-treated-tongue-and-groove-greenhouse-super-strength-framing-rim-lock-4mm-toughened-glass-bench-free-install-L-8776375-39581865_1si-004-001-0027_8x4-greenhouse-insitu-min_1
Expert Score 6370686368
Price £13,242.15£9,399.30£10,791.87£13,847.05£529.99
Size 30' x 6'22' x 6'24' x 8'30' x 8'8' x 4'
Brand Marlborough GreenhousesMarlborough GreenhousesMarlborough GreenhousesMarlborough GreenhousesMercia
Material WoodenWoodenWoodenWoodenWooden
Cladding Thickness 12mm12mm12mm12mm12mm
Guarantee 10 Years10 Years10 Years10 Years10 Years
GoGoGoGoGo
Joel Bird

Joel Bird

Profile

Our resident shed building expert Joel was the 2014 winner of Channel 4’s Amazing Spaces Shed of the Year having beat over 10,000 applicants to win. He returned to the show the following year as a judge. He is also the author of The Book of Shed and has designed & built over 50 small bespoke garden builds. Joel has appeared on various TV or Radio shows include George Clarkes Amazing Spaces, Alan Titchmarsh Love your Garden, Chris Evans Breakfast Show and BBC Radio 4’s Saturday Live.

Meet the experts

Sources

Merchants Checked

12 different sources were used to research information on this product, and 2 contained information that we were able to use to compile the data used on this page.

The following merchants were checked on the 06 August, 2022 to see if they stocked this product.

Homebase – 35509 products checked, found 1 match.
Buy Sheds Direct – 1635 products checked, found 1 match.
Waltons – 231 products checked, found no matches.
Wickes – 19576 products checked, found no matches.
B&Q – 78905 products checked, found no matches.
ManoMano UK – 922302 products checked, found no matches.
Wilko.com – 21232 products checked, found no matches.
sheds.co.uk – 1999 products checked, found no matches.
BillyOh – 1244 products checked, found no matches.
Garden Buildings Direct – 1284 products checked, found no matches.
Shedstore – 1373 products checked, found no matches.
Tiger Sheds – 635 products checked, found no matches.


1. UV treated: The British Plastics Federation says that the addition of light stabilisers (they are called hindered amine light stabilisers (HALS)) in plastics are used “to inhibit the reactions in plastics which cause undesirable chemical degradation from exposure to UV light.” This chemical degradation from exposure to UV light is often seen as chalking or a white residue that forms as the polymers degrade over time. This degradation can often be avoided by adding HALS that are UV absorbers such as benzotriazoles, benzophenones or organic nickel compounds. By incorporating weathering stabilisers into the plastics used the damaging effects of UV light will be slowed down considerably. 

2. Polycarbonate: Is one of the toughest plastics available. The excellent toughness and thermal stability make Polycarbonate one of the most widely used thermoplastics. This durability makes this ideal for garden equipment and extremely durable plastic garden structure. Polycarbonate is also used for things such as riot shields, vandal proof glazing, safety helmets and headlamp lenses.

According to data from the British Plastics Fedaration the physical properties of Polycarbonate are that it is very good when exposed to high heat with a maximum continuous use temperature of 125 °C. This is coupled with the outstanding Notched Impact Strength data of 60 – 80 Kj/m². 

3. Roof material types identified: polycarbonate 

4. Roof thickness types identified: 4mm, 6mm 

5. Roof covering types identified: polycarbonate 

6. Glazing material types identified: polycarbonate, polyethylene 

Product ID: SKU: 702499

Size: 8' x 20'

Merchants Checked: 12

Available From: 2

HomeBase
£3,105.00
See Deal
BuyShedsDirect
£2,549.00
See Deal

Support WhatShed: by making a purchase after clicking a link above, a portion of the sale supports this site.