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Palram Canopia Octave 8x12 Silver Polycarbonate Greenhouse
- 8ft 0" wide x 12ft 0" deep
- Natural Silver Aluminium Frame
- Clear Single Wall Polycarbonate
- Locking Double Doors
- Built in Gutters
- Galvanised Steel Base
- 5 Year Warranty
Greenhouse Dimensions
A: Greenhouse width
2440mm (8′)
B: Greenhouse depth
3670mm (12′)
C: Ridge height
2290mm (7′ 6″)
D: Eaves height
1255mm (4′ 1″)
E & F: Door Size
1145mm (3′ 9″) x 1945mm (6′ 4″) (aperture)
Minimum Base Size
2440mm (8′) x 3670mm (12′)
The Palram - Canopia Octave 8x12 is a bright, roomy 8ft wide greenhouse.
The clear single wall polycarbonate lets plenty of daylight reach your plants. The natural silver aluminium frame is powder coated and needs no painting. The double doors lock and sit on a low threshold for easy access.
When we build it, the base rail is levelled first, then the panels slide into the frame. Built in gutters carry the rainwater away. Palram back the frame with a 5 year warranty.
- Easy to Build
- 2.44m (8ft) Wide Aluminium Greenhouse
- 3.67m (12ft) Long
- Clear Single Wall Polycarbonate Glazing
- Natural Silver Aluminium Frame
- Locking Double Doors
- Built in Gutters
- Galvanised Steel Base
- 5 Year Warranty
1-Man Deliveries: Your new Palram Shed or Greenhouse will be delivered within 3-5 working days.
2-Man Deliveries: Larger items will be delivered within 7-10 working days.
You will receive a text message from Arrow XL to schedule your delivery. Please respond as soon as possible to ensure prompt delivery.
Greenhouse Dimensions
A: Greenhouse width
2440mm (8′)
B: Greenhouse depth
3670mm (12′)
C: Ridge height
2290mm (7′ 6″)
D: Eaves height
1255mm (4′ 1″)
E & F: Door Size
1145mm (3′ 9″) x 1945mm (6′ 4″) (aperture)
Minimum Base Size
2440mm (8′) x 3670mm (12′)
Frequently Asked Questions
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What are the different types of Polycarbonate Glazing?
Clear Polycarbonate: This polycarbonate is completely clear like glass. It is very thin at 0.2mm, but extremely tough and shatterproof.
Twin Wall Polycarbonate: This polycarbonate is virtually unbreakable and high impact resistant. They are slightly opaque, preventing strong sunlight exposure, yet offer 80% light transmission with high thermal insulation. The panels are 100% UV protected and will not discolour, fracture or shatter.
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Is polycarbonate glazing strong enough?
Yes it’s shatterproof and high impact resistant. However, as polycarbonate is very light, we do not recommend placing these greenhouses in exposed areas with high wind.
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Does the greenhouse come with a floor?
No, there is no floor or base. These greenhouses are ideally to be placed on a concrete, slab or decking base.
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How do I secure the greenhouse to my foundation?
We recommend securing the greenhouse to a hard, level surface (concrete, slabs, or decking) immediately after construction. This is essential for the stability and rigidity of your new greenhouse. You can use a screw and a washer through the compatible pre-drilled holes in the greenhouse frame into a raw plug in your concrete/slab surface.
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Will you let me know when the delivery is?
Yes, you will be notified by text where you can then pick which delivery day suits you. Easy!
How to Prepare Ground for a Greenhouse Base
A solid base is the backbone of any greenhouse. You might think skipping this step saves time, but trust me?I've seen plenty of greenhouses fail because of poor foundations. A dodgy base causes more headaches than you'd believe.
What happens with a bad base? Glass cracks. Doors jam. The structure twists. Water pools where it shouldn't. And fixing these problems costs way more than doing it right first time.
Best Position for a Greenhouse UK: Expert Placement Guide 2026
The best position for a greenhouse in the UK is south-facing with the ridge running east to west. Keep at least 2 metres from buildings and trees, on level ground with good drainage. A south-facing 6x8 greenhouse runs 3-5 degrees C warmer than the same model facing north.