Hoklartherm RIGA Greenhouses

Product Highlights

  • German engineering - guaranteed top quality!
  • Attractive and beautiful to look RIGA Greenhouse that fits well into any garden setting
  • The strongest greenhouse in its price range

This item ships via freight, please reach out to us to request shipping costs.

About This Item

Hoklartherm RIGA Greenhouses:

  • Extremely heavy-duty construction
  • First-class insulation: R or K-value 3.0
  • Warranty: Polycarbonate: 10 years; Frame: 15 years
  • Heavy-duty Dutch Barn Door with keyed lock: 30" wide x 72" tall. 72” tall narrow unit /79” tall wide unit
  • Oversized Rear Wall window: 30" wide x 42" high with adjustment arm
  • Roof Window(s): 40" w x 24" d; with Automatic Window Opener
  • 8 MM UV coated twin wall
    polycarbonate over the main body
  • 10 MM twin wall polycarbonate in front & back walls for extra strength
  • Inside walking height: 6’1” near shelves, 6’11” in the middle of the narrow unit and 7’6” high for a wide unit.
  • Assembly time: 2 people, 1 full day (3 makes it easier and reduces it to 6-8 hours (excluding any shelves)
  • Come with DVD and written Assembly Instructions
  • Made in Germany

Available Sizes for Hoklartherm Riga Greenhouses:

  • RIGA 2s Greenhouse Size: 7'8" W x 7' L x 7'1" H
  • RIGA 3s Greenhouse Size: 7'8" W x 10'6" L x 7'1" H
  • RIGA 3 Greenhouse Size: 9'8" W x 10'6" L x 7'7" H
  • RIGA 4s Greenhouse Size: 7'8" W x 14' L x 7'1" H
  • RIGA 4 Greenhouse Size: 9'8" W x 14' L x 7'7" H
  • RIGA 5 Greenhouse Size: 9'8" W x 17'6" L x 7'7" H


The Riga Greenhouse is truly a European definition greenhouse, designed to be used to grow your plants even in the middle of the winter. With a strong combination of strong materials and durable hardware, the Riga Greenhouse is by far the strongest greenhouse under $5,000 and offers more window and door ventilation than other units in its class. The Riga Greenhouse comes with an optional two-layer shelving system with removable shelf inserts that allows for tall plants (beans, tomatoes, etc.). Optional 6" high base frame (which is often used to increase the height of the roof) and is 2-3" higher than most competitors. Optional Shelving, seed tray/Bench shelf and top-shelf are available with strong diagonal support braces that can hold up to 160-pound. The white twin-wall polycarbonate shelf inserts can be removed to allow for tall plants such as tomatoes or beans or to allow insertion of heavy-duty seed trays. The RIGA Greenhouse offers the minimum insulation needed to grow plant year-round while others using less insulation cost too much to heat. One major advantage of the Riga's construction method is that the frame profiles are permanently attached to each other, and won't come loose over time due to wind pressures. RIGA Greenhouse units are available in 5 sizes. This greenhouse is attractive and beautiful to look at and fits well into an upscale garden setting.