8 Foot Wide Premium Polycarbonate Greenhouse

This premium backyard greenhouse is the right choice for surviving the Canadian winters and the year-round gardening enthusiast. This sturdy greenhouse model has a 10-year warranty, 25 lbs per square foot snow load for an 8x12 and features 10 mm thick super tough twin wall polycarbonate roof and walls. There is a wide entrance door, high ceiling and this DIY greenhouse kit includes plant hangers, automatic temperature-sensitive roof vents, and a side louvre window which provide optimal ventilation and help you maintain correct moisture and temperature levels.

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Gothic Greenhouse 8x8, 8x12, 8x16 or 8x20

The virtually unbreakable 10 mm Twin-Wall 100% UV protected, light diffusing polycarbonate panels, provide a pleasant, insulated environment for growing your plants as well as protect from harsh weather conditions. The high roof and tall eaves provide ample headroom, allotting you more space to garden and trellis tall and leafy plants.  

This greenhouse also includes a rust resistant, galvanized steel perimeter base, for adding height, structural support, stability & alignment. This premium greenhouse is aesthetically pleasing and made to last with its dark anthracite powder coated elegant finish and its strong and robust aluminum frame. If you are a fervent grower, this greenhouse is for you.

Ships from Mississauga, Ontario
Add to Cart for Cost to Your Province

Assembly Note: Although no particular part or sequence of the assembly process is difficult, consider this a project that will require 1-2 days with minimum 2 people systematically following the assembly manual.

Customer Greenhouse Photos below (B.C. and Ontario)

Download 6x8 Brochure

8x8 Greenhouse Dimensions

8x12 Greenhouse Dimensions

8x16 Greenhouse Dimensions

Greenhouse Features:

• Frame colour:  anthracite grey
• Rust resistant, heavy gauge aluminum frame
• Reinforced structure
• Virtually unbreakable 10 mm (0.4 in.) twin wall polycarbonate panels
• Smart sliding panel assembly system
• Roof angle designed to reduce accumulation of heavy snow load
• 268 cm (105.5 in.) head room
• Built in gutter system
• 3 automatic roof vent openers
• UV protected
• Galvanized steel base
• 80.5 cm x 190.8 cm (31.7 in. x 75.1 in.) aluminum hinged door
• Aluminum door handle with door locking system
• Brush strip seal at bottom of door
• Ramp included
• 1 side louver window
• Plant hanger hooks included
• Withstand winds up to 120 km (75 miles) per hour
• Snow Load: up to 117.2 kg/m² (24 lb/ft²)

Polycarbonate panels

• Virtually unbreakable, high-impact resistant and flexible
• 10 mm, Twin-wall panels provide excellent insulation and protect from strong sunlight exposure
• Complete UV blockage and 100% UV protected, the panels do not discolor, fracture or shatter
• Maintain their integrity and withstand extreme weather conditions for many years of use

Aluminum Frame

• Extra thick (+50%) aluminum frame provides an extra-rigid, highly durable and corrosion resistant structure

Extra support

• Reinforced structure for added strength

Lockable door handle

• For extra protection and safety (lock not included)

Easy access and use

• Large hinged door can be installed as a left or right hand door
• Low door threshold for moving heavy items in and out on wheels etc.
• High headroom 268 cm and tall eaves 191 cm provide large interior space and ample room for trellising tall and leafy plants
• Bottom door seal brush strip – prevents dirt from entering inside as well as keeping chilly winds out

Easy assembly

• Smart sliding assembly system
• Uniform profiles for all positions

Built-In Gutters

• Large closed gutters, with 3.2cm diameter gutter heads included
• Allow water collection for a sustainable irrigation system

Ventilation

• Roof vent provides air flow and allows regulation of heat and humidity
• Side louvre window enhances air flow
• Automatic vent opener – opens and closes the roof vent without then use of electricity (start opening point: 12-15°C)

Galvanized steel base

• Adds structural stability

Integrated anchoring system

• Internal ground anchoring system offers structural support during harsh weather conditions

Weight by Size for Raised Decks

Typical decks are design to hold 50 pounds per square foot.  Be sure to assume weight is also added by soil, pots, garden boxes etc. For example for an 8x8 greenhouse at 64 square feet x 50 lbs per square feet, it can bear up to 3,200 lbs of weight maximum.

• 8x8: 229 lbs + 500 lbs of soil/pots + 2 people = 1,000 lbs (3,200 lbs capacity)
• 8x12: 284 lbs + 1000 lbs of soil/pots + 3 people = 1,750 lbs (4,800 lbs capacity)
• 8x16: 339 lbs + 1500 lbs of soil/pots + 4 people = 2,800 lbs (6,400 lbs capacity)
• 8x20: 394 lbs + 2000 lbs of soil/pots + 4 people = 3,350 lbs (8,000 lbs capacity)

Assembly Instructions

Click here for the 6x8 Assembly instructions.

Click here to download assembly instructions for the 8x8 Premium Greenhouse kit with 4 foot extension option for 8x12 or 8x16 configurations.

Product Video

10 Year Warranty

Download the Premium Greenhouse 10 Year Warranty.

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