Grandio Elite Greenhouse 8×8

The Grandio Elite 8×8 Greenhouse offers serious all-season performance with a visually striking barn-style roofline and commercial-grade materials. With ultra-insulating 10mm twin-wall polycarbonate panels and a rugged 1.6mm aluminum frame, this greenhouse is built to handle snow, wind, and year-round use.

Designed for both amateur and professional gardeners, the Grandio Elite 8x8 combines high-end function with beautiful form. From overwintering plants to starting full garden cycles, this greenhouse offers advanced climate protection and long-lasting durability in a compact footprint.

NEW ORDERS TO SHIP MID-LATE MAY

Key Benefits

• 10mm twin-wall polycarbonate for best-in-class insulation (R-Value: 1.89)

• Strong 1.6mm powder-coated aluminum frame resists rust and corrosion

• Unique barn-style roofline allows extra vertical grow space

• Overhead double sliding doors eliminate jamming and track issues

• Nylon wheels and brass fittings reduce wear over time

• Roof vents included for passive ventilation

• Pre-drilled parts and user-friendly manual for easy DIY setup

• Lifetime frame warranty and 10-year panel coverage

Grandio Elite 8x8 Greenhouse for Four-Season Growing Power

Built to thrive in harsh environments, the Grandio Elite 8×8 is the most insulated model in Grandio’s lineup. Its 10mm twin-wall panels offer superior thermal protection and light diffusion—creating a stable growing environment for plants even in cold or fluctuating climates. Whether you’re protecting tropicals or jump-starting a spring harvest, this structure works year-round.

Ideal Applications

• Overwintering sensitive or tropical plants

• Cold-climate seed starting or propagation

• All-season herb and vegetable gardening

• Backyard growers in snowy or windy regions

• Gardeners needing a compact but insulated grow space

Grandio Elite 8x8 Greenhouse Kit with Commercial-Grade Construction

From the frame to the fasteners, the Grandio Elite 8x8 is built to outlast typical greenhouse kits. The barn-shaped frame not only adds headroom but boosts snow-shedding performance. The double doors glide on overhead tracks, using nylon wheels and solid brass fittings to ensure smooth access for years—no jams, no breakdowns.

What's the Difference Between the Basic and Premium Kit?

Both the Basic and Premium kits feature Grandio’s high-performance 10mm twin-wall polycarbonate panels, a sturdy base kit, integrated rain gutters, a reliable snow load kit, and (2) roof windows—offering solid protection and insulation for all-season gardening.

The Premium Kit adds essential accessories to enhance automation, growing capacity, and greenhouse upkeep:

• (2) Automatic Roof Vent Openers – Maintain ideal airflow and temperature without manual adjustments

• (1) Pack of 10 Plant Hangers – Perfect for suspending baskets or training vertical plants

• (1) Trellis Kit – Support climbing plants and organize your growing space

• (1) Drip Irrigation Kit – Keeps your plants hydrated consistently and efficiently

• (1) 8 oz. Bottle of Brillianize Cleaner – Clean your panels safely and preserve their clarity

If you're looking to simplify setup and maximize performance, the Premium Kit delivers the tools to grow smarter from day one.

Maintenance Tips

• Wash panels with water and mild soap every season to maintain light clarity

• Clear debris from the sliding door track regularly

• Lubricate hinges and brass fittings annually for longevity

• Check and tighten bolts after storms or high wind events

• Always anchor the greenhouse to a level base for optimal performance

Choose the best foundation for your greenhouse with our customizable base kits:

🔹 Optional Steel Base Kit – Ideal for windy or extreme environments, this heavy-duty steel base adds extra strength, stability, and 3 inches of headroom. Powder-coated to resist rust and decay, it includes anchoring options for earth/soil, concrete slabs, or wooden decks.

🔹 Included Flat Mount Base Kit – Perfect for controlled environments like fenced-in yards or patios. This base secures to concrete slabs or wooden decks, providing a stable foundation for your greenhouse. If installing over soil, the Steel Base Kit is required for optimal support.

Get the Greenhouse That’s Built for All Seasons

The Grandio Elite 8x8 Greenhouse Kit combines premium insulation, standout design, and lasting durability—perfect for growers who want serious performance in a space-conscious footprint. Start growing better today.

Premium Kit Includes:

• 10mm Twin-Wall Panels
• (2) Roof Windows
• Base Kit
• Rain Gutters
• Snow Load Kit
• (2) Auto Roof Vent Openers
• (1) Pack of 10 Plant Hangers
• (1) Trellis Kit
• (1) Drip Kit
• (1) 8 oz. Brillianize Cleaner

Specifications

• Height: 8′
• Width: 8′ 2″
• Length: 8′ 1″
• Frame: Heavy duty aluminum
• Wind Rating: Withstands winds up to 76 mph*
• Snow Rating: Maximum snow load of 25lbs./ft² of snow*
• Color: Powder coated green
• Panels: 10mm twin-wall UV protected polycarbonate.
• Door Width: 44″
• Doors: Bind-resistant sliding double-doors.
• Latch: Easy-latch doors with double-ball catch
• Tools: Included
• Hardware: Stainless steel nuts and bolts
• Reinforcement: Cross-roof truss and cross corner bracing
• Gutters: Built-in rain gutters
• Ventilation: (2) roof vents with adjustable manual openers/latches

User Manual/ Assembly 

FAQ

You have questions, no problem, we have answers.

How easy is the Grandio to assemble? Very easy. We’ve designed and perfected the assembly process with you in mind. We provide the tools and a step-by-step assembly manual and video and if you have any problems you can call us at 1-844 873-5764.

Is a building permit required? You may not need a permit for your Grandio, but it is always a good idea check before you get started. We recommend you check local ordinances and requirements before setting up your greenhouse.

Is it strong enough for windy or heavy snow locations? Definitely. Grandio’s are all designed to withstand the most hostile environments with a wind rating of 76 MPH and snow load rating of 25lbs./ft² of snow. We offer additional roof and eave supports to increase the strength and durability of the greenhouse frame for the Element Greenhouses. Just follow the included directions for securing your greenhouse and you’ll enjoy many years of growing with your Grandio.

I live in the hot southwest will Grandio Greenhouses work for me? For people who live in high temperature areas of the country like Arizona, Texas, California, Nevada, or New Mexico we recommend our aluminum shade net. The aluminum shade net reflects the sun on the hottest days to help your greenhouse keep it’s cool.

How do the automatic roof vent openers work? The opener has a metal cylinder containing a mineral which expands when heated. This pushes a piston that opens the vent. As the temperature cools, the mineral shrinks and a spring closes the vent and resets the piston. The opening and closing of the vent is gradual allowing just the right amount of air flow for cooling. No electricity needed!

How large is the roof vent opening? The vent opening is 18-3/4″ width by 22-3/4” length.

What is the difference in polycarbonate thicknesses? Polycarbonate is available in several different thicknesses and normally comes in single, double, and triple walled sheets that can vary in thickness from 1mm to 10mm. A good rule to remember is that the thicker the panel the better insulation you’ll have for your greenhouse.

Can these greenhouse be mounted to a concrete pad? The Grandio comes standard with a base that is meant to anchor it in the soil with concrete footers or a duckbill anchor kit. However, it can be mounted to a concrete pad with additional tools and hardware. For more information please refer to our online manual or give us a call 1-844 873-5764 to discuss options.

Can’t wait for your Grandio? Here’s what to expect.

How many boxes will I receive?
Your new Grandio ships in 2 or more manageable-sized boxes (the exact number of boxes depends on the size of your greenhouse).

How is it shipped?
Grandio Greenhouses are generally shipped via UPS Ground.

Can I buy a Grandio if I live outside the USA?
Currently we can only ship orders to the USA.

How long will my order take to get to me?

• West: 2-4 business days

• Northwest: 1-3 business days

• Southwest: 3-5 business days

• Midwest: 4-6 business days

• East: 5-7 business days

Note: These are estimates and business days are the time your items are in-transit only and do not include order processing time. Inclement weather and unforeseen carrier or transportation emergencies may delay your delivery.

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Warranty

• Frame: Lifetime limited warranty

• Panels: 10-year limited warranty

• Doors & Hardware: 1-year warranty