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12'x20' Royal Victorian Glass Greenhouse (VI46)

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Price: $16,500.00
Regular price
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Price: $16,500.00
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Order Confirmation:

As soon as you place your order, you will receive an order confirmation e-mail.  This means that we have received your order in our system and pre-authorized your credit card for the purchase.  As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for shipment.  If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail.  If your item(s) are available for immediate shipment (within 5 business days), we will process the charges and submit the order for shipment. If there are shipping delays we will let you know and confirm whether you’d like to proceed with the order. 

Note: In-stock greenhouse models are averaging 5-10 business days to ship. 

Order Shipment:

If your order is in stock and we process the charges to your credit card, it will ship within five business days from the date of your order.  We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  Once shipped, most orders arrive within 5-7 business days. If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at

Free Shipping:

We offer free shipping on all products with USPS, UPS, FedEx, DHL within the continental US. Other carriers may be used if your order requires freight shipping.

Why Buy From Garden Luster

Extend the seasons, start & nurture seedlings or create a tropical jungle! The Royal Victorian Glass Greenhouse (VI46) not only provides a first-class quality greenhouses environment, it also adds significant old fashion English style and beauty to your backyard. 

Going on a trip and worried about the greenhouse getting too hot? Our greenhouse comes with automatic window openers. No electricity needed! The black tube is filled with a special paraffin oil that expands when the temperature reaches around 72º F. The piston will push the window open up to about 14". When the temperature falls a heavy spring pulls the window closed.

Features & Benefits:

  • Aluminum framework (black & green available) - 16 gauge, powder-coated
  • 6" high foundation frame
  • 4mm tempered glass
  • Rubber seals to hold glass in place
  • 6 roof windows (3 automatic & 3 manual)
  • 1 louvre window
  • 2 sliding doors - can be put on any side of the greenhouse
  • Gutters with downspouts
  • Misting system
  • 15 year Limited Warranty


  • 12'7"W x 19'11"L x 9' H
  • Side Walls: 6'7"
  • 250 sq ft of interior workspace

An optional Accessory Kit is available for this greenhouse which includes shade curtains, a narrow top shelf and a seed tray shelf.

As can be seen in the pictures, some customers choose to install their greenhouse on a stem wall and/or upgrade their sliding doors to a double hinged door. Please contact us if you are interested in these modifications.


Made in Belgium by Janssens.

NOTE: Currently the average shipping lead time is around 5-10 business days for in-stock greenhouses. Call, text or e-mail us to confirm availability and estimated time of delivery.

Customer Reviews

Based on 3 reviews
Kristen L.
Great company to work with

Greenhouse is great but the company is even better. Awesome to work with.

Great greenhouse!

I bought several months ago. I was extremely happy with the delivery (note: will only deliver to your driveway)... everything intact, no missing parts. EVERTHING FITS TOGETHER PERFECTLY! The assembly instructions are picture based and mostly understandable, some take a little longer to decipher than others. Some engineering or construction experience is helpful -- I wouldn't recommend for a total novice. The on-line videos can also be helpful. You will need to have a level foundation for the frame, but note that your corners will need to be anchored into the foundation. The glass panels are a bit awkward to handle... you'll need 2 persons to install the roof panels. I am using my 12' x 19' green house as a spa room with plants, water fountain, bistro table, music, and hot tub and lovin' it.

Wonderful and Durable

We use the Greenhouse as an art studio and place to dine. I poured a concrete folly piped in electricity and plumbing and we love it. I can see it would be a great greenhouse, but we love the use for personal space and quiet evenings. We are in Los Angeles, California so weather is not an issue. A colder climate may not work for our usage. Very easy to assemble and durable. No problems with it over the last 4 years.