To Speak to a Greenhouse Specialist Call1-800-276-0210 or email
We're Open 7 days/ week 8 am – 10 pm MST

The Monticello Greenhouse is 8 ft. W x 7.5 ft. H with five lengths available and each one applies American ingenuity to create the highest level product and elevate industry standards. The Monticello Greenhouse is made of the highest quality U.S. grade extruded aluminum (compared to thinner and more brittle foreign aluminum) and features an electrostatically-painted black frame (guaranteed lead-free).

The Monticello Greenhouse uses 60 to 100 lbs. more aluminum than the average imported greenhouse, giving it greater stability for holding snow in the winter and withstanding high winds. It has professional grade 8 mm twin-wall polycarbonate panels for its walls and roof panels which help keep cool air inside during the summer and insulates better from cold air in the winter, growing year-round.

The Monticello Greenhouse also features  2 ft. x 2 ft. automatic roof vents, a built-in rainwater gutter system, and dual-hinged doors. By using superior materials that are more efficient and rigid and using interchangeable parts in our design, the Monticello Greenhouse takes the average gardener two days to assemble the 8 ft. x 12 ft. greenhouse and ensures you will enjoy our greenhouse for years to come. * This does not include the base prep work needed, which includes leveling the ground.

Monticello Greenhouse Features:

  • Size: 8 ft. W x 7.5 ft. H.  Starts at 8′ long.
  • Five lengths available: 8 ft., 12 ft., 16 ft., 20 ft., 24 ft.
  • 2 ft. x 2 ft. roof vents with automatic opener (# depends on length)
  • Roof vents: 1 – 8 ft., 2 – 12 ft., 3 – 16 ft., 4 – 20 ft., 5 – 24 ft.
  • 58 in. H sidewalls
  • Hinged lockable double doors
  • Door size: 48 in. W x 65 in. H
  • Integrated flush base design
  • High-impact UV-stable 8 mm twin-wall polycarbonate walls and roof
  • Heavy-duty extruded aluminum frame
  • Black frame
  • Integrated dual rain water gutter system
  • New patent pending Twist & Lock single bolt
  • 10-year warranty (strongest in the industry)
  • Ability to expand greenhouse in 4 ft. increments as needs grow
  • Snow load capacity of 24 lbs./sq. ft.
  • Wind load of 65 mph gusts
  • Made and designed in the U.S.A.

Accessories available:

  • shade cloths
  • watering systems
  • potting sinks
  • workbench

Click here to see the Monticello Premium Greenhouse Package

Click here to view other greenhouses from Riverstone

Click here to view the Monticello accessories page

Customer Reviews

Be the first to leave a review


This site uses Akismet to reduce spam. Learn how your comment data is processed.