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or £25 Off Orders Over £500 Code: WINTER25
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Halls Magnum 8 x 12 ft Greenhouse
We are committed to Low Prices.
If you find any of our products on the price promise pages advertised, and in stock and immediately available, at any of our competitors we will endeavour to match the price.
(4.8) Based on 4 Reviews
Description
The Halls Magnum 8ft wide by 12ft deep greenhouse offers high internal headroom, ideal for taller growers, along with a wide growing interior and double door entry for easy access.
Magnum greenhouses from Halls are renowned for space and strength and this 8x12 model is no different. An excellent sized greenhouse for most keen gardeners. An aluminium frame is strengthened by cast iron joints and gardeners, whatever their experience or preferences, all gardeners will make the most of the enviable amount of space.
Easy access is by double smooth action sliding doors and an ideal growing environment is created by no less than four opening roof vents and integral guttering along the roof area, which easily connects to an optional downpipe kit in order to direct rainwater into a suitable water butt or container.
Whatever you want to grow, this greenhouse will offer enough space to match your growing ambition.
Key Features
- Large 8ft Wide Greenhouse with 12ft Depth
- Rust-Proof Metal Aluminium Main Frame
- Three Glazing Types: Horticultural, Toughened & Polycarbonate
- Double Doors Offers a Wide Access Point
- Cast Iron Joints For Added Integrity
- Integral Roof Gutters Connect Easily to an Optional Downpipe Kit
- 9.9 Square Metres of Internal Growing Area
- Official Halls Branded Frame, Glazing & Accessories
- Extra Tall with Added Headroom Compared to Other Models
- Includes Four Manually Opening Roof Vents
- Includes 12-Year Anti-Rust Guarantee
Specification
| Brand: | Halls |
|---|---|
| Door Opening Height: | 182cm (6ft) |
| Door Opening Width: | 120cm (3ft 11in) |
| External Depth: | 384cm (12ft 7in) |
| External Height To Eaves: | 151cm (5ft) |
| External Height To Ridge: | 258cm (8ft 6in) |
| External Width: | 257cm (8ft 5in) |
| Frame Colour: | Silver |
| Frame Material: | Aluminium |
| Nominal Size: | 8ft x 12ft |
| Optional Base Height: | 12.8cm ( 5.0in) |
| Type: | Freestanding |
PDF Downloads
Halls Magum Instruction Manual
In Stock
Buy now, pay later with PayPal Credit
Delivery normally within 20 working days.
(+10 working days for Scotland)
Select Your Options
Customisation > Glazing
Three types of glazing are available for your greenhouse. Choose from standard horticultural, long pane toughened or 6mm polycarbonate options which let you customise your greenhouse to suit your needs.
Glass diagram images below are for demonstration of the glazing styles and may differ depending on your chosen greenhouse model.
with Horticultural Glazing (70890)
Standard 3mm glass which consists mostly of 2ft by 2ft panes, overlapping each other with the use of clips to hold one above another. This type of glass is traditional and very economical but tends to shatter into shards when smashed, so isn't recommended if you have children or pets.
- 4% Off
- Save £50.00
with Long Pane Toughened Glazing (70944)
Long pane 3mm toughened glass is a lot stronger, and more durable than standard horticultural glass. In the rare event of it shattering, it breaks into safer smaller pieces. It is also neater and needs less maintenance as no overlapping glass means there is no algae build up and no Z clips to fit.
- 3% Off
- Save £50.00
with Polycarbonate Glazing (70902)
Polycarbonate is a virtually unbreakable material, better described as being a highly durable, 6mm thick twin-wall, opaque coloured plastic glaze rather than actual glass. This makes it the safest material where children and pets are concerned and the simplest type to install due to the large yet lighter panes. It also refracts the light very well.
- 3% Off
- Save £50.00
Accessories > Base Plinth
All greenhouses need to be fitted onto a secure base. This can be achieved by using an official Halls branded metal base plinth to give the greenhouse added strength and height. Alternatively you can build a brick base to fit your greenhouse size if you prefer.
Please Note: If you're having your greenhouse installed by the Halls team, you will need to purchase this base along with your greenhouse.
with Silver Base Plinth (SO1652)
Add a matching steel base plinth to your order.
Image for demonstration only and base colour/style may vary depending on your chosen model.
Image for demonstration only and base colour/style may vary depending on your chosen model.
- 25% Off
- Save £47.25
Accessories > Ventilation
Ventilation is essential for any Greenhouse no matter the size to ensure that the humidity and temperature inside provides the best growing experience for your new plants.
with Matching Louvre Window
A Halls louvre window with matching glazing. Louvre windows replace one or more standard glass panes to aid with ventilation in the side of your greenhouse.
Note: Louvre blades may differ between 5 or 6 blades depending on the greenhouse model. Image for demonstration only.
- 24% Off
- Save £19.00
with Automatic Louvre Window Opener (70959)
When used in conjunction with a Halls Louvre Window, this device can be pre-set to open the window as and when needed when the temperature reaches a certain degree.
- 19% Off
- Save £11.00
with Additional Matching Roof Vent
Add an additional Roof Vent which will aid temperature and humidity control inside your greenhouse.
- 24% Off
- Save £14.00
with Halls Automatic Vent Opener (VentoMatic) (70182)
The Ventomatic is an automatic solar-powered window-opener. It's able to open and close a roof vent within a range of 16 - 25 degrees celsius. One Ventomatic will be required per Vent.
- 19% Off
- Save £11.00
Installation Services
Please Quote Me For Installation
Looking for installation? No problem, let us quote you!
Tick this box and we'll work on finding an installer within your area and email you back with an installation price quotation for your consideration, catered to your chosen greenhouse and location.
Installation at this time is currently being completed 20 - 30 working days (4 - 6 weeks) AFTER the successful delivery of your greenhouse.
Note: A base plinth MUST be purchased above for installation services to be valid. The installers will not complete the installation without the matching base plinth accessory.
It's Good To Know - There's no obligation to agree with an installation quotation after receiving one from us. So if you've changed your mind or aren't happy with the quoted price, let us know and we can simply continue processing your order as normal as standard delivery-only.
Note: A base plinth MUST be purchased above for installation services to be valid. The installers will not complete the installation without the matching base plinth accessory.
It's Good To Know - There's no obligation to agree with an installation quotation after receiving one from us. So if you've changed your mind or aren't happy with the quoted price, let us know and we can simply continue processing your order as normal as standard delivery-only.
Services > Delivery
Please choose your delivery option below, based on your delivery location requirements.
with Delivery to Mainland England, Wales & Scotland
Our standard basic delivery of your greenhouse within Mainland England, Wales, and Scotland. Excludes any Offshore Islands.
with Delivery to Isle of Wight/Man and Scottish Islands
Our extended delivery service if you wish to have your greenhouse delivered to the Isle of Wight, Isle of Man and Scottish Islands.
with Delivery to Jersey or Guernsey
Our extended delivery service if you wish to have your greenhouse delivered to Jersey or Guernsey.
with Bespoke Delivery to Northern Ireland
Our extended, bespoke delivery service if you wish to have your greenhouse delivered to Northern Ireland.
Accessories > Free Standing Staging
Staging and Shelving provides that much-needed workspace, storage and potting areas, which helps to make planting and growing a whole lot easier!
with Halls 1 Tier ALUMINIUM Staging (SO1708)
A 120cm wide free-standing staging unit with one tier.
- 24% Off
- Save £19.00
with Halls 2 Tier ALUMINIUM Staging (SO1709)
A 120cm wide free-standing staging unit with two tiers.
- 22% Off
- Save £24.00
with Halls Potting Bench (70684)
A two-tier potting bench featuring an open tray compost tidy on the top for potting. Length 595mm x Width 560mm x Height 1040mm.
- 21% Off
- Save £19.00
with Halls 3 Tier Seed Tray Unit and 15 Trays (70668)
This 3 shelf seed tray tidy will ensure that you can make the most out of the space you have, with 15 standard sizes seed trays. Length 1180mm x Width 400mm x Height 1120mm.
- 21% Off
- Save £19.00
Accessories > Water Systems
Whether you're looking to setup an automatic water irrigation system within your greenhouse to limit the amount of manual watering that you need to do or to capture, recycle and reuse the fallen rain water using a water butt, these extra accessories will help you get started quick and easily.
with Water Butt & Stand
A 100-litre water butt with lockable lid for security, water exit tap and stand.
- 28% Off
- Save £19.00
with Matching Rainwater Downpipe Kit
The downpipe kit slots into your greenhouse guttering to channel water downwards, normally into a water butt or container (supplied separately). Two will be needed if you wish to capture water from both sides of a freestanding greenhouse, or one set for a lean-to model.
- 28% Off
- Save £11.00
with Gravity Vanlet Irrigation Kit (F04201)
The Halls Vanlet is a gravity fed automated drip irrigation system that can be used to distribute water and/or fertilizer.
The unit includes: Vanlet Tank, 30 Drip Pins, 35 Y Connectors, 25 metres of Transport Hose and a Fitting Bracket.
- 20% Off
- Save £24.00
with Solar Automatic Irrigation Kit (E05114)
Designed to be used with a water butt so there's no need for a water supply connection, the Solar Irrigation Kit waters your plants up to three times a day and automatically increases the amount during warmer weather.
Comes complete with solar panel unit, hose, pips and drippers, letting you reuse captured rainwater and the power of the sun to automatically water your crops economically!
- 13% Off
- Save £20.00
Accessories > Plant Care
Whether you need to add extra heat or block the sun's rays from overheating your Greenhouse, this range of accessories can help aid with your gardening, growing and potting needs.
with Plastic Plant Rings (20 Pack) (F04711)
A pack of plastic rings, suitable for attaching to your greenhouse frame, allowing you to attach tie supports for your plants.
- 13% Off
- Save £2.00
with Plants Spirals (3 Pack) (F04905)
They easily hang from the roof of your greenhouse using the hanging clips provided, they can then be extended downwards to the perfect height to offer support for tall growing plants.
- 33% Off
- Save £14.00
with Solar LED Lamp (F04841)
A solar-powered lamp with a bracket to easily attach to the framing of your greenhouse. Suitable for Indoor or Outdoor use.
- 28% Off
- Save £7.00
with Shading Blinds (Pack of Two) (E05119)
A pair of black blinds which are easily suctioned onto a pane of glass within your greenhouse, providing shade to a select area inside.
- 35% Off
- Save £17.00
with Halls 8ft (250cm) Shading Screen (70963)
Shading kits are perfect for keeping part of the Sun's heat from making the inside too hot. 2.59m Long and 1.80m Wide. Sufficient to shade one side of a 8x6 Greenhouse.
- 29% Off
- Save £20.00
with Paraffin Heater (F04453)
Ideal for the colder months, this paraffin heater will help to keep the inside of your greenhouse frost-free. Suitable to use with either lamp oil or perfume-free petroleum.
Capacity: 4.4L
Burn Time: 18 Hours approx.
- 24% Off
- Save £24.00
with Pot Holder (F04842)
A pot holder which easily slots onto the frame of your greenhouse, allowing 14cm diameter pots, up to 10kgs in weight to be held onto the frame, making use of the space inside of your greenhouse for even more growing space. (Pot not included)
- 28% Off
- Save £7.00
with Min/Max Thermometer (F04353)
An internal thermometer for your greenhouse, letting you keep an eye on the temperature inside. It also includes a max/min setting which shows you when the temperature of the greenhouse is at it's highest or lowest point.
- 24% Off
- Save £7.00
with Tablet Holder (F04849)
Simply slotted into the frame of your greenhouse, a touchscreen tablet can easily be placed in the holder, providing music or playing instructional videos while you pot and sow hands-free. (Tablet not included.)
- 24% Off
- Save £7.00
In Stock
Delivery Information
Delivery Timeframes & Charges
Delivery is normally within 20 working days (4 weeks) to mainland England and Wales areas.
Delivery is normally within 30 working days (6 weeks) to Scotland and Offshore Isles/Islands.
Delivery is normally within 40 working days (8 weeks) to Northern Ireland due to the extra distance and carriage logistics.
Delivery charges can be found under the “Delivery Services” options above. Unfortunately, delivery to; Scottish Islands, Isle of Man, Isle of Wight, Jersey, Guernsey and Northern Ireland will incur a higher delivery charge due to the additional logistics of sending a greenhouse, and the extra distance required by the delivery carrier.
Unfortunately, we can't ship this product range to the Republic of Ireland.
For larger products, the carrier will call and book in a convenient delivery date. For other products, a delivery date will be provided by email from the carrier, which will include a link to allow tracking online.
Installation Services
Installation services may be available on some greenhouse products and is limited to domestic addresses only (no allotments) within mainland England and Wales, but excludes Scotland, Scottish Highlands, Northern Ireland, and Offshore Islands. Installation is normally completed within 20 - 30 working days (4 - 6 weeks) after the successful delivery of your greenhouse. Please find our Halls Installation Terms and Preparation Checklist here.
Note: A base plinth MUST be purchased above for installation services to be valid. The installers will not complete the installation without a matching base plinth. Please find our Halls Installation Terms and Preparation Checklist here.
Vehicles We Use
Items will be delivered on larger lorries which can get to most places it's typically, a 15 ton lorry which is about the size of a dustbin lorry, this will depend on the item that is being delivered and should you have any concerns with restricted access to your property we ask you to contact us prior to placing an order.
Unloading Of Your Delivery
Due to the nature of this product, delivery will be made to the front of the property to the nearest location. Our drivers will not carry these items inside your home or back garden. When the item is delivered on a pallet, the pallet and packaging are non-returnable. Goods can only be manoeuvred on a flat and level surface (i.e. not a gravel driveway) by a pallet truck. On some occasions the driver will split the package to assist with manoeuvring of the item. Once you are happy, we will ask you to check the condition of the goods and sign for the delivery.
Customer Reviews
Overall Rating 4.8 / 5 Based On 4 Reviews
Price 5 / 5
Quality 5 / 5
Delivery 5 / 5
Great product
Great product delivered in under 2 weeks. Installation by nick the fitter was first class. I would recommend this product and this company for their all round service.
Price 5 / 5
Quality 5 / 5
Delivery 5 / 5
Great Value for Money
Searched the internet for best buy and best quality, read reviews and decided on this greenhouse. Customer service is very good and delivery driver very helpful and rang before delivery. Quality of greenhouse is great, very sturdy with spacious headroom. Took ages to erect though. Majority of items were clearly labelled but not all, and some were hard to identify. The instructions are rubbish, put it together and took apart lots of times as put some parts on the wrong way round or missed out screws because diagrams/instructions weren't clear or non existent. Hooray for the internet, found a couple of websites that helped and youtube. Overall very happy with greenhouse and would recommend it.
Price 5 / 5
Quality 4 / 5
Delivery 4 / 5
As good as expected
Liked the look of this greenhouse, not least the price which I thought very competitive. The extras are well worth considering, the louvre is good at increasing air circulation and I've found the staging essential. Glad I bought this one.
Delivery 5 / 5
Quality 5 / 5
Price 5 / 5
Lots of Working Area
This Halls greenhouse gives you lots of working area for your money and that's why I bought it. The double doors make access in and out of the greenhouse so much easier - I don't think I would recommend a single door greenhouse now I've got double doors. I also ordered some staging and an automatic vent which means one of the windows opens and closes itself as the temperature rises and falls again. Make sure you sue gloves when putting it up, especially with the glass, which is obvious really. The basic frame is very simple to install, the most difficult thing is identifying which piece is which, but a lot of them are the same to be fair. Looks good when finished and with some plants inside.
Questions and Answers
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