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Halls Supreme 812 Greenhouse (8x12)

Halls Supreme 812 Greenhouse (8x12)

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Halls Supreme 812 Greenhouse (8x12) Halls Supreme 812 Greenhouse (8x12) Halls Supreme 812 Greenhouse (8x12)

Product Code [SO8632]

Our Price: £1,449.00

Delivery & Installation

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Halls Supreme 128 (12x8) Greenhouse

The Halls Supreme 812 (8x12) Greenhouse is a large, 8ft wide stylish aluminium greenhouse featuring elegant curves. The curved eaves will provide an elegant addition to any big garden, and is ideal for keen amateurs or professional gardeners. This greenhouse comes with a powder-coated forest green framing, and toughened glass. Smooth action double sliding doors are fitted as standard, and 4 roof vents allow constant and even ventilation. More models are also available - 4x6, 6x6, 8x6, 10x8, 12x8 and 14x8. A wide range of accessories is also available for the Halls Supreme greenhouse.


  • FREE 4x opening roof vents
  • Unique curved eaves
  • High quality product
  • Long established UK brand
  • Double sliding door
  • Plain aluminium or green powder-coated frame
  • 15-Year manufacturers warranty
  • Choice of horticultural glass or toughened safety glass
  • 100% maintenance-free
  • Easy DIY assembly using step-by-step instructions
  • Wide range of accessories available

Quality Construction

The Halls range of Supreme Greenhouses are made to a high standard. They are supplied with virtually unbreakable aluminium frames available in plain aluminium or forest green finish, have sliding doors and opening roof vents, and you can choose from standard horticultural glass or toughened safety glass. DIY installation is easy due to the straightforward step-by-step assembly instructions, however a professional assembly service is also available. The manufacturer offers a 15-Year warranty on this model.

Maintenance Free

Halls greenhouses are designed to be almost maintenance free. Only occasional oiling of the moving parts, and general cleaning is all that is required. The manufacturers supply this building with a 15-year warranty and guarantee that your building lasts for many years. 

Windows & Glazing

Halls greenhouses are supplied with a choice of glazing to best suit your circumstances. Traditionally horticultural glass has been used, allowing sunlight to stream into the greenhouse for maximum light and warmth, however they are also available in toughened safety glass as well which is especially comforting if you have small children. This building comes with 4x Opening Roof Vents


The 8ft wide Halls Supreme Greenhouses are supplied with a double, smooth action, sliding door. No locking system is supplied, however  provision has been made to allow a padlock to be fitted.

Straight-forward Assembly

These buildings are supplied in flat-pack form complete with comprehensive instructions. Installation should take less than a day, as only basic tools are required, and no professional experience is necessary. 

Professional Assembly Option

Alternatively, we do have a friendly professional installation service if you would prefer to watch someone else do all the work!
IMPORTANT NOTE: If you require our professional assembly service, you must purchase the optional galvanised steel greenhouse base, and be aware that we can only install it onto a flat and true concrete or slabbed site which has been prepared prior to our arrival.

Optional Extras

It is essential that you set your greenhouse onto firm foundations, and we have a prefabricated 5" galvanised steel base to fit every model as an optional extra. Additional extras available for this building include staging, louvre vents etc. and are available from the Halls Accessories section. To avoid any extra delivery charges, please ensure that any accessories required are ordered at the same time as the greenhouse.


Please contact us prior to purchase if you have any queries regarding the dimensions, or if you require exact sizes.
Model Ref. No. Frame Size (mm) Height (mm) Double Door Vents Glazing
(Colour) Length Width Eaves Ridge Width (mm) (Roof) (Walls & Roof)
Supreme 812 SO5631 Silver 3830 2550 1240 2120 1200 4 Horti Glass
Supreme 812 SO5632 Silver 3830 2550 1240 2120 1200 4 Toughened 
Supreme 812 SO8631 Green 3830 2550 1240 2120 1200 4 Horti Glass
Supreme 812 SO8632 Green 3830 2550 1240 2120 1200 4 Toughened

All products are delivered sectional/flat-packed unless stated otherwise. Information shown above has been supplied by the manufacturer, and is as accurate as possible (errors and omissions excepted), however they are intended only as a guide. *The free delivery service covers mainland UK & Northern Ireland. Delivery to all other Offshore and Scottish Islands locations will be subject to an additional charge by the manufacturer (please call for a quote). 

Delivery Areas Manufacturers Delivery Surcharge
Mainland UK England, Wales & Scotland FREE
Northern Ireland BT Postcodes UNAVAILABLE
Offshore Including I.O.W., Isle of Man, Eire, Scottish Islands, etc.. Please Call for Quote
Delivery lead time is currently up to 25 weeks, and is typical for most areas. Please check before ordering if delivery time is critical. All customers will be contacted 48 hours prior to delivery to provide a AM/PM delivery date.

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IMPORTANT: Imperial sizes shown in the description are approximate, and are provided by the manufacturer purely as a guide. Please refer to the metric dimensions for more accurate sizes, or contact us prior to purchase if you have any specific requirements.