Monticello 8 ft. x 12 ft. Aluminum Premium Greenhouse Kit

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Not all greenhouses are built the same and the Monticello line of greenhouses by Riverstone Industries proves this to be true. The Monticello is applying good old American ingenuity to make the best product for our customers and help to elevate the industry standards of all greenhouses. Constructed from the highest quality extruded aluminum (US grade not the thinner and more brittle foreign aluminum) , our greenhouse uses on average more than 40 lbs. more aluminum than the average imported greenhouse. Why is this important. The weaker the framework the less snow the greenhouse can hold in the winter time before collapsing on itself also the easier it will be get damages in wind. While most hobby greenhouses on the market us less expensive thinner walls and roofing materials (the crystal clear walls are as thin as 0.2 mm), the Monticello uses professional grade 8 mm twin wall polycarbonate. This is the same thickness as used in the commercial greenhouses. The twin wall polycarbonate acts as a double pain window keeping cooler air in during warm months and insulating the greenhouse from cold air in the wintertime. This not only makes the Monticello more efficient to grow in for a longer period of time than other greenhouses but it also adds to the efficiency of growing, cutting down electric bills for those who choose to grow year round.

  • Premium package includes: green house, work bench system, interior shade system, programmable watering system, greenhouse sink system
  • A combination of using superior materials Monticello takes the average gardener 8 hours to assemble not including the base prep work needed, which includes leveling the ground
  • Integrated flush base design
  • High impact UV stable 8 mm twin wall polycarbonate walls and roof
  • Heavy duty extruded aluminum frame construction
  • 2 ft. x 2 ft. roof vent with automatic opener
  • Integrated dual rain water gutter system
  • Hinged lockable double doors (new for 2014)
  • Large 4.6 ft. W door opening
  • Full 10-year warranty (strongest in the industry)
  • Expandable ability to expand greenhouse in 4 ft. increments as needs grow
  • Snow load capacity of 24 lbs./sq. ft. and wind resistance up to 65 MPH
  • New patent pending twist and lock single bolt (makes assembly quicker and easier over prior version) (new for 2014)


Please Note - Allow for a FULL weekend to Fully Assemble (ground prep included). Two people suggested for assembly.   Manual is fully illustrated.

8 ft.
8 ft.
12 ft.
Assembled Dimensions:
98 in. w x 147 in. d x 90 in. h
Door Opening:
48 in. w x 71 in. h
Door features:
2 Swing Door with lockable latch
Max Roof Snow Load:
24 lbs per sq ft.
Max Wind Resistance:
86 mph
Storage Capacity:
1460 cubic ft.
Number of Vent Openings:
10 year manufacturer limited
High impact UV stable 8 mm twin wall polycarbonate walls and roof. Easy assembly construction and efficient to use. 10 year manufacturers limited warranty. Ships via UPS

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