Riga Greenhouse

Item No. HG-RG-
Free Shipping See Details 100% Money-Back Guarantee When you have finished the assembly of this greenhouse, we are confident you will be completely satisfied with the quality of the product. View Details . Dimensions 7' 8" W x 7' L x 7' 1" H 7' 8" W x 10' 6" L x 7' 1" H 7' 8" W x 14' L x
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Free ShippingSee Details

100% Money-Back Guarantee

When you have finished the assembly of this greenhouse, we are confident you will be completely satisfied with the quality of the product. View Details.

Dimensions7' 8" W x 7' L x 7' 1" H
7' 8" W x 10' 6" L x 7' 1" H
7' 8" W x 14' L x 7' 1" H
FrameHeavy Gauge Extruded Aluminum
Covering8mm Twinwall Polycarbonate Panels on Roof and Sidewalls; 10mm Twinwall Polycarbonate on Endwalls
Door(s)30" W x 6' H - Heavy Duty Dutch Door with Keyed Lock
Roof Vents7' and 10' 6" Lengths: 1 - 40" x 24" (Automatic); 14' Length: 2 - 40" x 24" (Automatic)
End Vents1 - 30" x 41"
Side Vents0
FoundationOptions - Stakes; Treated 4x4's; Concrete Piers or Slab
More foundation information
PDF File
WarrantyRiga Greenhouse Warranty PDF File
Frame - 15 years; Covering - 10 years
ManualRiga Greenhouse Instruction ManualPDF File

The German engineered Riga Greenhouses have beautiful and practical designs combined with quality, long-lasting parts and pieces.

Easy to Assemble

The Riga features a sturdy rustproof, extruded aluminum frame. The unique "channel" design of the aluminum components allows for simple "slide and fit" assembly, thus saving time and money. Easy to understand step by step assembly instructions are included with every structure.


With the thickest twin wall polycarbonate offered on a backyard greenhouse, the Riga hobby greenhouse carries the highest R factor of any hobby greenhouse on the market. This makes the Riga less expensive to heat.


Most hobby greenhouses manufactured today offer 4mm or 6mm polycarbonate covering. The Riga hobby greenhouse carries the highest R factor of any hobby greenhouse on the market. It is covered with sturdy 8mm twin wall polycarbonate on the roof and side walls and the end walls are covered with heavy duty 10mm twin wall polycarbonate. This kind of covering provides better insulation making your Riga greenhouse easier to keep cool in the summer and warm during the winter months. The "onion" shape helps shed heavy snow loads.

Doors and Vents

The extra wide 30" heavy duty dutch door with keyed lock is wide enough to easily pass a wheel barrow through. The extra wide 40" x 24" automated roof window(s) and oversized 30" x 42" gable end window maximize the benefits of natural ventilation.

Optional Base Kit (Call to order)

Riga Base

Heavy-duty 6" tall extruded aluminum base for the Riga Greenhouse. Base can be placed directly on ground and if you choose, can be filled with sand, peagravel or concrete. Greenhouse frame slides directly onto base.

Order by Phone Order by Phone

We understand that you may want to talk to an actual person instead of ordering online. Call us toll-free at 1-888-281-9337 to speak to a Greenhouse Megastore Sales Representative.

Financing Available

Greenhouse Megastore works with Bread and Evergreen Equipment Finance to provide financing to homeowners and businesses.

Give one of our Sales Representatives a call to learn more about your financing options 1-888-281-9337.

Free Shipping Motor Freight Carrier

This item ships free via Motor Freight Carrier - almost anywhere in the Continental United States!

On rare occasions addresses with limited access such as islands or major metropolitan areas (ie: New York City) may incur additional delivery fees; if so, you will be contacted to confirm the extra shipping cost before your order is processed. Shipments to Alaska or Hawaii qualify for free shipping to any West Coast port. Please contact us for special shipping rates from the West Coast to Alaska or Hawaii.

Motor Freight Agreement

  • Full Size Semi: Your location must be able to accommodate a full size semi-truck trailer of up to 70ft. in length.
  • Someone Must Be Present: You or someone else authorized must be present to unload the shipment. Exact delivery date will be arranged via phone by freight company.
LTL Freight Type FREE
Standard Drop Shipment Code DROP SHIP
Replenishment System Purchase
Available for Drop Shipment Yes
Item Tracking Code PARENT
Reviews (2)
  • Riga Greenhouse
    The greenhouse is great. The shipping was fast and the company is great to work with. The company upgraded me to a 14' long greenhouse & accessories since the smaller one was out of stock at no additional charge. I hope to have this structure for a very very long time. I would recommend this vendor to anyone looking to purchase a great greenhouse.
  • Great Greenhouse
    Bottom line, this is a great greenhouse. Materials and design are strong & appear durable. The polycarbonate glass is clear, tough & appears to insulate well. Assembly was straightforward with the help of the CD video (the written instructions appear to have been translated from German (good engineering, not long on explanations though) and are vague without the video). We watched the video several times & took notes on the written instructions, this worked well. Fit and finish of the greenhouse is very good. Three people are needed for some of the construction to hold & steady frame parts. Be sure to carefully inspect your shipment upon arrival & make note on the driver's shipping documents of any perceived damage. Although the delivery truck driver put up resistance, I was careful to note tears, dinks & evidence of rough handling. I was glad I did as one of the aluminum frame members had received a substantial hit during shipping which resulted in damage that wasn't really apparent from the looking at the box. As a result, the frame member was replaced without problem. There were a few small fittings which came up short; upon notification, the shipper (EXACO) was excellent to work with and quickly sent these damaged and missing parts. The only shortcoming I see with the greenhouse is the door handle. The unit supplied with the greenhouse is different from the documentation. The handle doesn't always keep the door closed as it doesn't have a positive latch (works on friction) and will slip open. My husband has an easy fix for this though. All in all, I definitely recommend this green house. I gave it a five star rating despite the door latch as the latch is rather trivial (& easily fixed) relative to the overall very good quality of the greenhouse. Its designed well & built to last, was easy to put together (with the video) and I am enjoying it very much.