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5.0
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5.0 out of 5 stars. 2 reviews
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  9. Monticello 12 L x 8 W ft. Black Backyard Greenhouse

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Monticello 12 L x 8 W ft. Black Backyard Greenhouse

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Monticello 12 L x 8 W ft. Black Backyard Greenhouse

Item # 1175977

Monticello Monticello 12 L x 8 W ft. Black Backyard Greenhouse
Monticello Monticello 12 L x 8 W ft. Black Backyard Greenhouse
$4,659.99
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Shop all Monticello
  • Online Only

Monticello 12 L x 8 W ft. Black Backyard Greenhouse

Item # 1175977

Monticello Monticello 12 L x 8 W ft. Black Backyard Greenhouse
Monticello Monticello 12 L x 8 W ft. Black Backyard Greenhouse
$4,659.99
or
or
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$98/mo.†  for 48 months at 0% APR or earn $232 in Rewards+ on this purchase.
Valid 8/24/2026 - 9/7/2026

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Not all greenhouses are built the same and the MONT 8 ft. x 12 ft. Black Greenhouse proves this to be true. 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) and electrostatically painted black (guaranteed to contain 0.0% lead), our garden greenhouse uses on average more than 55 lb. more aluminum than the average imported greenhouse. Constructed from the highest quality extruded aluminum (US grade - not the thinner & more brittle foreign aluminum) and electrostatically painted Black (guaranteed to contain 0.0% lead), our greenhouse uses on average more than 55 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 .2mm), the MONT uses professional grade 8mm 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 MONT 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. At 7ft 6in tall at the peak the MONT's above average interior height design also helps with displacing heat within the greenhouse while also allowing for the tallest gardeners not to have to bend down when inside the greenhouse. From the integrated base to the built in rain water gutter system, to the automatic roof vent opener and the newly redesigned hinged double doors with an opening of almost 6ft high x 4 & 1/2ft wide ensures you are sure to enjoy the MONT greenhouse for years to come. The MONT also offers the ability to grow as your needs grow with the 4ft extension kit that can be purchased anytime in the future. You get what you pay for and with the MONT this rings true. We back the MONT with the strongest warranty in the industry (10 yrs.) on the frame and Polycarbonate. For the gardener that is looking for a mid-priced greenhouse system that will supply years of hassle free indoor gardening this is the greenhouse for you. We hope you enjoy growing in the MONT as much as we enjoyed designing it.10 year limited warranty on the frame and polycarbonate

Looking for more information on greenhouses? Check out our guide on greenhouse types in the product documents section.

  • Approximately 8ft. W x 12ft. L x 7.6 ft. H (101 x 149.75 x 90)
  • Quick assembly construction
  • Integrated flush base design, High impact UV stable 8mm twin wall polycarbonate walls and roof, Heavy duty extruded aluminum frame construction, Black electrostatically painted frame
  • 2- 2ft x 2ft roof vent with automatic opener, Integrated dual rain water gutter system
  • Wide door opening to almost 4 ft. x 6.5 ft., Hinged Lockable Double Doors, Patent Pending Twist & Lock single bolt
  • Accessories available separately (not included in this package) shade clothes, watering systems, potting sinks, & shelving kits
  • Expandable - ability to expand greenhouse in 4 ft. increments as needs grow
  • Allow for a FULL weekend to Fully Assemble (ground prep NOT included). Two people suggested for assembly. Actual time to construct will depend on size of the greenhouse and skill levels.
  • Proudly designed and made in the USA! Manual is fully illustrated
  • Includes NEW Door Lock and Vent Locks for extreme weather conditions
BrandMonticello
Country of OriginMade in USA
Coverage Area8 ft. x 12 ft.
Cover MaterialPolycarbonate
Door Height6-3/8 ft.
Door Width4-1/2 ft.
Exterior Peak Height7 ft. 6 in.
FeaturesVented Design
Frame MaterialAluminum
Greenhouse Coverage Area Range81 - 100 sq ft
Height at Sides90 in.
Maximum Wind Resistance65 MPH
Number of Doors/Openings1
Number Of Greenhouse Vents2
Number Of Hanging Rods Included0
Number Of Shelves or Tiers0
Portable or StationaryStationary
Primary ColorBlack
Product Height7-5/8 ft.
Product Length12-3/16 ft.
Product Weight284 lb.
Product Width8-1/8 ft.
Roof ShapeGable
Door TypeSwing open
Warranty10 Year Limited
Manufacturer Part NumberMONT-12-BK

Have a question?
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1 - 6 of 6 Questions
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Q: What thickness is the polycarbonate panels and are they UV resistant? 

3 years ago
1 Answer
  • A: per the manufacturer: High impact UV stable 8mm twin wall polycarbonate walls and roof
    3 years ago
    Helpful?

Q: Is there an option with this greenhouse for hanging baskets?

5 years ago
1 Answer
  • A: No, not on the TSC website.
    5 years ago
    Helpful?

Q: what options are available such as shelving, heater, water irrigation etc.?

5 years ago
1 Answer
  • A: For additional product support, you will need to contact the manufacture.
    5 years ago
    Helpful?

Q: What is the snow load?

5 years ago
1 Answer
  • A: 24 lbs/sq. ft.
    5 years ago
    Helpful?

Q: What is the type / thickness is the covering material

5 years ago
1 Answer
  • A: Cover Material: Polycarbonate The average thickness of the extrusion walls are 1/32” thick. The strength of the greenhouse is only partially determined but this thickness. The greater part of the strength of the greenhouse is in how many 9-0 degree bends each part has. Every time you create a new bend you strengthen and stiffen the part, making the overall structure more ridged. On average, our pieces have 12 90 degree bends in them. The other thing to consider is that we use 8 mm ( ¼”) twin wall polycarbonate that is designed to be structural and weight bearing. With how we lock the panels into channels built into the aluminum, the panels become weight bearing and more ridged.
    5 years ago
    Helpful?

Q: What wind speed will this unit withstand

8 years ago
1 Answer
  • A: The maximum wind resistance is 86 mph.
    8 years ago
    Helpful?

Q&As

Have a question?
Start typing your question and we'll check if it was already asked and answered.
1 - 6 of 6 Questions
Sort by
Newest questions

Q: What thickness is the polycarbonate panels and are they UV resistant? 

3 years ago
1 Answer
  • A: per the manufacturer: High impact UV stable 8mm twin wall polycarbonate walls and roof
    3 years ago
    Helpful?

Q: Is there an option with this greenhouse for hanging baskets?

5 years ago
1 Answer
  • A: No, not on the TSC website.
    5 years ago
    Helpful?

Q: what options are available such as shelving, heater, water irrigation etc.?

5 years ago
1 Answer
  • A: For additional product support, you will need to contact the manufacture.
    5 years ago
    Helpful?

Q: What is the snow load?

5 years ago
1 Answer
  • A: 24 lbs/sq. ft.
    5 years ago
    Helpful?

Q: What is the type / thickness is the covering material

5 years ago
1 Answer
  • A: Cover Material: Polycarbonate The average thickness of the extrusion walls are 1/32” thick. The strength of the greenhouse is only partially determined but this thickness. The greater part of the strength of the greenhouse is in how many 9-0 degree bends each part has. Every time you create a new bend you strengthen and stiffen the part, making the overall structure more ridged. On average, our pieces have 12 90 degree bends in them. The other thing to consider is that we use 8 mm ( ¼”) twin wall polycarbonate that is designed to be structural and weight bearing. With how we lock the panels into channels built into the aluminum, the panels become weight bearing and more ridged.
    5 years ago
    Helpful?

Q: What wind speed will this unit withstand

8 years ago
1 Answer
  • A: The maximum wind resistance is 86 mph.
    8 years ago
    Helpful?

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Reviews 3
5 out of 5 stars.

Monticello Hobby Greenhouse

5 years ago
It took us a while to post this review and we are at about 99% complete so I'll post now. Both Tractor Supply's and Riverstone Industries' (the builder of the Monticello Kit) performance have been stellar to this point. Our assembly area is elevated 14ft up on a deck and the wind has been pretty bad through the assembly process. We had to build special wall supports to keep the walls from blowing over during assembly but once the end wall and roof parts went on this structure became very steady. All in all it's taken about 6 days to assemble due to the access and wind difficulties. It should take less than 3 days on a site with good access and no wind. TSC shipped immediately and we had the hot house very quickly- shipment tracking was very good. As a product the Monticello Hobby Greenhouse is a solid, American Made structure which has survived our windy environment with ease so far. When we display to neighbors I have them lean on a corner and everyone is surprised how solid it is. As far as customer service goes, we were short one large panel and a few other parts but Riverstone Industries responded immediately and without too many qualification questions. We highly recommend this product to those looking for a solid greenhouse- remember as you are looking- you get what you pay for.

1 Ratings-Only Review

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