Internet #100395879


9 ft. 8 in. Wide x 14 ft. Long Polycarbonate Greenhouse

Product Overview

Riga IV German Hobby Greenhouse with two shelves and base (9 ft. 8 in. W x 14 ft. L x 7 ft. 1 in. H; 135 sq. ft.) Purchasing a premium quality greenhouse is an investment. With the Riga IV you get premium materials as well as premium customer service. Exaco Customer Service can be reached 7 days a week and have been trained for the Riga series of greenhouses; there is no question they can’t answer. If you have questions give them a call at 877-760-8500. The Riga IV frame is made from 12-Gauge aircraft aluminum and is designed to last a lifetime. The framing is assembled with all stainless steel hardware and carries a 15-year warranty. The Riga IV is covered with UV coated Twin-wall Polycarbonate Glazing. The polycarbonate is 10 mm thick on the front and rear and 8 mm on the sides. This along with the precise construction gives the Riga IV best insulation in its category. Adding a small heater in the winter will keep the Riga IV warm throughout the season. The unique design of Riga IV not only looks good on your property, but has many benefits too. The sloped roof prevents snow buildup; it just slides right off. This design also allows strong winds to blow right over and hail bounces harmlessly away. The Riga IV is outfitted with a 30 in. W Dutch style door in the front, an oversized roof window and an oversized window in the rear wall. No matter what level of gardener you are the Riga IV will make you feel like a professional
  • Thermoclear Plus UV protected twin-wall polycarbonate glazing, featuring 8 mm thick side panels and 10mm thick front and back panels for superior insulation
  • Designed for growing fresh vegetables in the middle of winter
  • Thick gauge aluminum frame allows for large snow loads and high wind resistance
  • All stainless steel hardware prevents rusting or corrosion of any type
  • Large rear casement window with adjustable stay allows air flow from front to back
  • Dutch style front door with locking handle allows top to be open for ventilation whilebottom stays closed to keep small animals out
  • Front door - 30 in. W x 79 in. T rear window - 30 in. W x 42 in. T roof window - 40 in. W x 24 in. T
  • Overall dimensions: 9 ft. 8 in. W x 14 ft. L, overall height 7 ft. 1 in. at peak, snow loads up to 50 lbs. per sq. ft.
  • Riga greenhouse kit comes complete with: 1 full length upper shelf - 10 in. D, 1 full length lower shelf - 25 in. D, 5 in. aluminum base (to anchor the unit to the ground)

Info & Guides

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9 ft. 8 in. Wide x 14 ft. Long Polycarbonate Greenhouse
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Name9 ft. 8 in. Wide x 14 ft. Long Polycarbonate GreenhouseRiga 9 ft. 8 in. x 17 ft. 2 in. German Hobby GreenhouseCarver Poly 10 ft. W x 16 ft. D x 8 ft. H Educational Greenhouse KitRoyal Victorian 10 ft. x 15 ft. Greenhouse
Approximate Greenhouse Depth (ft.)14171615
Approximate Greenhouse Width (ft.)10101010
Greenhouse FeaturesDoor latch,Foundation included,Lockable door/gate latch,Shelving includedDoor latch,Foundation included,Lockable door/gate latch,Shelving includedShade cover included,Shelving included,Single door,Walk-inShelving included
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Approximate Depth (ft.)
Approximate Greenhouse Depth (ft.)
Approximate Greenhouse Height (ft.)
Approximate Greenhouse Width (ft.)
Approximate Width (ft.)
Assembled Depth (in.)
168 in
Assembled Height (in.)
90 in
Assembled Width (in.)
116 in
Door Opening Height (In.)
Door Opening Width (In.)
Exact Width x Depth
9 ft 8 in x 14 ft


Assembly Required
Floor Options
Without Floor
Frame Color Family
Greenhouse Features
Door latch,Foundation included,Lockable door/gate latch,Shelving included
Installation Available
Maximum Roof Load
Maximum Wind Resistance
Number of Vent Openings
Product Weight (lb.)
Storage Capacity (cu. ft.)

Warranty / Certifications

Manufacturer Warranty
1 Year Against Manufacturers Defects

Questions & Answers


What size boxes do the materials for the 9'8 x 14' RIGA greenhouse come in?

Asked by Ernie September 7, 2019

Two long boxes (15' long about 8" x 8" about 120 lbs each); one 10' long x 24" high x 10" wide (100 lbs), wooden crate with polycarbonate: 10' long x 40" wide x 8" high - 350 lbs. Truck will have a lift gate - to slide these boxes down out of the trailer. Other info call us: Exaco: 877-760-8500 ext 701

The unit is pictured with the foundation frame installed. Is this included with the kit? I'm in...

Asked by StevieD August 3, 2017

This depends on who is selling it: usually it is listed as either just the greenhouse or as a greenhouse kit - the latter usually includes the Foundation Frame and a top and bottom shelf. Just be careful different website will make different kits.

Customer Reviews

  • 38 Customer Reviews
  • 5 out of 5 stars overall
100% of customers recommended.
Overall Ratings
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Torrey, UT, United States
Extraordinary Design
Customer review from Exaco Trading logo
This is a major piece of fine equipment. I spent a lot of time reading and researching various greenhouses and this one seemed to have a number of details well thought out. It is so well made that if you pay attention to the directions it goes together perfectly. We have installed it on a concrete driveway and it stayed pretty warm through a cold Utah winter with 2 minor little heaters. We live in an extremely windy place and the special safety wires for the vents have held up well. We even installed an extra one for the open door. The space is great and we even built a feral cat shelter into the back left corner!
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Zeeland, MI, United States
Great for Michigan weather!
Customer review from Exaco Trading logo
So far we're using our greenhouse as a chicken coop. Chickens love it, natural light but plenty of space to dig and scratch. Funner than a small dark coop b/c we can walk inside the chicken coop and enjoy being with the chickens without being crowded. We use an electric dog water bowl and the chicken feeder hangs from the ceiling frame. A 2x4 spans the rear of the coop for roosting. In the spring all doors and vents need to be open else it gets too hot. We had custom cut aluminum panels to change the front door from solid panels to something more like a fence (chickens need fresh cool air). Also, we hung chicken wire over the back window so that can be open in the summer. Through the winter we just let the deep bedding straw and compost mixture build up and mix it with our boots every so often..... easy, no coop to clean. When we sold our house, 3 adults lifted the greenhouse, put it on a trailer and towed it to our new location (~25mph). Great product, great for chickens in the winter! Assembly took 1.5 days by myself, would be a lot faster with 2 people. Soon we hope to use it as a real greenhouse.
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Colorado, United States
rocky mountain garden
Customer review from Exaco Trading logo
After wrestling with the city for permits, I finally was able to build my greenhouse in about 3 days. The directions were a bit lacking, but I work construction and was able to figure it out. It seems to have survived well thru its first snow storm.I have some leftover parts and not sure what they go to.
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Fisher, IL, United States
Just the right size
Customer review from Exaco Trading logo
My husband and I really love this greenhouse. We were looking for something that would fit in our small backyard yet give us enough space to grow seed starters. This greenhouse is very well made and we use just a small milk house heater thru the winter and it stays quite warm in there. We have had this for about 4 years and it has exceeded our expectations. We have quite hot summers where we live and the only parts that need replaced since we bought it is the extended arm for the gable end window to hold the window open and a couple of the flat panels that the seed trays sit on. We also love the automatic vent openers on the 2 windows, it saves a lot of running back and forth to open and close according to the weather, and the large black seed trays that came with it hold a lot of plants/seeds in a small area. Overall we are very happy with our purchase.
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Duluth, MN, United States
Riga Rocks even in Duluth, MN
Customer review from Exaco Trading logo
We have had our Riga greenhouse thru a couple Northern Minnesota winters now. It has stood through bitter cold and blowing winds (that took down many trees!). Greens that finally freeze in late-December miraculously revive in mid-February for fresh spinach, kale, even romaine lettuce. In summer, we do tomatoes, cukes, peppers, all the things that being perched next to Lake Superior has made so difficult in the past. This is a very well-designed greenhouse; we assembled it with just two people. I recommend getting a third person to help. The assembly instruktions (poorly translated from German), are a bit of a challenge. But it does all go together, and stays together, for great growing.
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Billings, MT, United States
Beautiful to look at easy to use
Customer review from Exaco Trading logo
We have been using it for 10 months and love it. I chose the Riga because it seemed to hold up well in the snow for other users and I have not been disappointed. The shape of the greenhouse allows rain and snow to fall off easily and it still looks beautiful in the garden. I did underestimate the need for shade in the summer and we have none where we set it up so I will share what worked well for us. You will see lots of pics from people using shade cloth on the outside, wouldn't that be nice! We live in a high wind area and that was not an option for us. I ended up getting aluminet (80% for the south side and 50% for the north side) shade cloth and hung it inside using the extra bolts that came with the greenhouse, don't throw those away. We just hung the cloth up and used washers with the bolts to hold it snug to the aluminum supports and cut flaps for the top window vents. Sometimes I would spray it down with water and that really dropped the temp. For the future though I planted some trees around it, the cloth is a bit of a hassle. I was surprised how easy it was to install the ventilation fan and louvers, I thought the sheets would be hard to cut but they really were not, we just used a jigsaw with a fine blade. I think it took us 2 days to set up the greenhouse itself with 3 people and we did the ventilation on another day. You really do need 3 people. Some of it is not intuitive but the video provided by Exaco was really great and they were there to help us with any other questions. For the floor I have 3 zones, pavers in the middle for walking, rock on weed barrier on the right for potted plants, and a compost mix 3 ft wide along the south wall for planting in ground. We actually built the greenhouse in Feb thanks to a mild winter and I was able to use it for starting seedlings. I also planted carrots and lettuce in ground and had a nice crop early.
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Blue Hill, ME, United States
The best retirement present ever!
Customer review from Exaco Trading logo
I live in Downeast Maine and bought my Riga greenhouse 10 years ago. It provides vegetables and herbs from March through November. When some panels showed deterioration last year, I called Exaco and found that they were originally installed with the UV coating on the wrong side. Exaco sent me replacement panels just for the cost of shipping and said that the Riga now comes with UV coating on both sides. I think that is customer service "above and beyond!"
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Santa Rosa, CA, United States
Sturdy, well-made, everything I expected and more.
Customer review from Exaco Trading logo
I been enjoying my greenhouse for five years now. Right about now (November) the seed catalogs arrive, a favorite time of the year. Come January-February I'll begin my seed germinating in the greenhouse. A small oil-filled electric heater keeps the temps above freezing. Sometimes I overwinter hot pepper plants inside, too.
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Perfect greenhouse
Customer review from Exaco Trading logo
I love this thing! Gets use all year and is excellent quality and value
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McCall, ID, United States
Love my Riga IV Greenhouse
Customer review from Exaco Trading logo
We assembled my Riga IV greenhouse this fall so that I can start my vegetables much earlier in the spring. The result is not only practical but beautiful. I bought this style because I live at a high elevation where we get a lot of snow in the long winter. The ceiling windows opened and closed automatically from the start. Exaco provided outstanding support, from my many phone calls to the great coordination of the delivery truck. Their DVD provided very helpful insights into the assembly. I also appreciate many of the details provided by the German engineering of the design. I'm thrilled with my final greenhouse and would recommend it to any of my friends.
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