Installation Guide
model
foundation
W1 L1
greenhouse 
W2 L2
Riga S II
96 7/8 91 5/16 91 3/4 85 1/16
Riga S III
98 1/16 133 1/16 91 3/4 126 3/4
Riga S IV
98 1/16 174 7/16 91 3/4 168 1/8
Riga III
122 13/16 133 1/16 116 9/16 126 3/4
Riga IV
122 13/16 174 7/16 116 9/16 168 1/8
Riga V
122 13/16 216 1/8 116 9/16 209 13/16
7
Foundation plan Riga S/Riga 
Foundation of your greenhouse with a strip foundation
If you have not purchased a foundation frame secure the greenhouse by means of 
a  strip  foundation.  Create  the  foundation  in  accordance  with  the  specified 
dimensions below. 
Concrete masonry units are also a good choice 
Please make sure that the foundation is level in all directions.
Then anchor the greenhouse with the included mounting brackets (V15)(minimum)
Screws and anchors are not included.
exterior edge of the foundation
exterior edge of the greenhouse
upper edge of ground
frost-free ground
W1
W2
Suggestion: Assemble the lower frame (soil profiles 1.1/2.1, 
soil profile corner V9) of the greenhouse to use as a template to 
create a stone or concrete foundation. Make sure the corners 
are square. This will prevent any errors in measurement. 
Creating a stone/cement base is not required. The greenhouse can be 
placed directly on the ground.
(Option) Opening for Door Drop Kit-3*ODIFT8JEFY*ODIFT5BMM
4 1/8
all dimensions in [in]










