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HN-TGC025 Halls

Halls Magnum 8 x 12-Foot Greenhouse

Item # HN-TGC025
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  • Halls Magnum 8 x 12-Foot Greenhouse
Halls Magnum 8 x 12-Foot Greenhouse

Dimensions & Specifications

48L x 71H in. (Door), 8L x 12W x 8H ft.
Frame Material
Peak Height
8 feet
Sidewall Height
4.5 feet
8 x 12
Square Feet
15 Year on Aluminum Structure, 10 Year on Panels


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  • Have questions or want to place an order? Call our product specialists: 866-579-5183
  • Includes all the best features of a quality greenhouse
  • Features durable polycarbonate glazing
  • Eaves and ridges designed for added strength and room
  • An additional 6-inches of height at eaves and ridges
Full Description
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Customer Reviews


by PowerReviews
Halls Magnum 8 x 12-Foot Greenhouse

(based on 1 review)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 1 customer

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Hidden costs

By midrsb

from Seattle, WA


  • Great greenhouse
  • I'd give 5 stars except


  • Instructions very unclear

Best Uses

    Comments about Halls Magnum 8 x 12-Foot Greenhouse:

    My Dad, a very experienced handyman, and I puzzled over the inscrutable instructions for two days, managing to get the four walls together but then totally unable to join them together. The instructions are vague and spread out over three different areas so one is constantly flipping back and forth. I finally hired a professional handyman who did a great job getting it together but confirmed that the instructions were extremely unhelpful--he basically had to figure it out for himself. It took him three days to assemble it at a cost of $1500. If I'd known there would be this extra cost, I would have pursued getting an already-assembled greenhouse instead. People should be warned about this, and the instructions should definitely be improved--even for professional assemblers!

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