Order Line: 0115 9656820

After Sales: 0115 9656820

Halls Universal 812 Green 8' x 12' Glass Greenhouse

The Halls Universal 812 Green Aluminium 8' x 12' Greenhouse is Halls top Universal greenhouse model.more

The Halls Universal 812 Green 8' x 12' Glass Greenhouse is Halls top Universal greenhouse model with a forest green powder coated aluminium frame. The higher eaves will allow you full use of this greenhouse's 9.9m² growing space.

There are also many optional extras to consider with this garden greenhouse from the drop down menus to enhance your greenhouse garden building and make a garden growing environment completely tailored to your needs. We also sell the Halls Universal 812 Green 8' x 12' Glass Greenhouse in other sizes and in a choice of two frame finishes - silver & painted coated forest green. 



Halls Universal 812 Green 8' x 12' Glass Greenhouse Dimensions:

  • Length: 3.84m
  • Width: 2.57m
  • Eaves Height: 1.32m
  • Ridge Height: 2.4m
  • Growing Area: 9.9m²
  • Door Opening: 590mm
  • Roof Vents: 2

Halls Universal 812 Green 8' x 12' Glass Greenhouse Features:

  • Powder coated forest green paint
  • Spacious High Eaves - Easier to grow & work in.
  • Box section ridges
  • Cast joints - At ridge and eaves
  • Easy clip-in glazing
  • Smooth single sliding door
  • Integral roof ventilation
  • Full Illustrated Instructions

Additional Options: (please select these from the drop down menu/s) We will be happy to provide you any further information upon request in relation to these greenhouse options:

  1. Base - As pictured in the main image
  2. Installation - *Please see below
  3. Staging - Aluminium, potting benches, wire trays, aluminium shelving, seed trays and luxury staging
  4. Louvre - Bladed, glass or poly glazed
  5. Roof Vent - 6' & 8' available
  6. Window Opener - Manual and auto
  7. Down Pipes -  6' & 8' rainwater kits are available
  8. Shading/insulation - 8ft & 12ft shading screens
  9. Greenhouse Heater - Junior, senior or maxi heating
  10. Coldframe - 4x2 or 4x3 in Horticultural, toughened or polypropelene glazing options
  11. Watering System - Vanlet automatic irrigation unit


Delivery Notes:

  1. All Orders will be Delivered within 21 - 28 Days from receipt of order
  2. All customers will be contacted 48 hours prior to delivery to provide AM / PM delivery date
  3. Delivery charges to all other Offshore and Scottish Islands locations require individual quotes (please call customer services before ordering)


  • Installation completed within 10 working days from delivery of greenhouse
  • Ensure ground location is of firm and level footing with any additional materials being pre-laid in readiness (example Paving Slabs etc.)
  • Area prepared should be free from any obstruction (example Manhole covers etc.)
  • Area should be free from overhanging obstacles (example Tree branches, Power lines etc.)
  • The area should allow the building to be installed providing access to all sides
  • Please ensure you have pre-checked your garden building 72hrs before your installation reporting any problems to our Customer Services 
  • Any additional accessories to be installed at the same time will be chargeable at a rate of £24.95 inclusive of VAT. If you wish to to have a lot of accessories installed? Please call our customer services department who will be able to give you a tailored quote.

IMPORTANT NOTICE: Customers should report any problems relating to the product within 24 hours from receipt to our customer service department.

delivery van
Usually 21 - 28 working days
Universal 812 Green Glazing
  • Horticultural Glass - £899.10
  • Toughened - £1,124.10
Total Price
£899.10 £1,249.00 Save £349.90
Seen it cheaper? We'd love for you to call or email us so we can try and beat it for you.
delivery van
Usually 21 - 28 working days
Optional Extras

Silver Base

£178.00 each


Green Base

£258.00 each

2 Tier Green Staging

2 Tier Green Staging

£107.35 each

Installation Please

Installation Please

£449.00 each


Down Pipe

£27.10 each

Not what you're looking for? Click here to view our other Greenhouses...
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