Name: Official Grandio Summit 12×28 Greenhouse Easy Returns [91fEKzUJ]
Brand: technovaprecision.com
SKU: HBS18620406441
Price: 84.99 USD
Availability: InStock
Rating: 3.72 (772 reviews)

Official Grandio Summit 12×28 Greenhouse Easy Returns [91fEKzUJ]

Beautiful Barn Style Greenhouse with Superior Functionality and Spacious Design for All Your Gardening Dreams

The Official Grandio Summit 12×28 Greenhouse Easy Returns [91fEKzUJ] offers an expansive and elegant solution for serious gardeners, hobbyists, and light commercial growers alike. Its distinctive barn-style design not only enhances aesthetic appeal but also maximizes internal space, providing ample room for diverse plant cultivation. Constructed with a robust 1.6mm powder-coated aluminum frame, this greenhouse is engineered to withstand harsh weather conditions, including winds up to 76 mph and snow loads of 25 lbs/ft², ensuring year-round gardening success.

Beyond its striking appearance, the Grandio Summit 12×28 is designed for optimal functionality. Equipped with UV-protected 10mm twin-wall polycarbonate panels, it offers superior insulation with an R-value of 1.89 and a U-value of 0.53, maintaining ideal growing temperatures across seasons. The greenhouse features smooth, bind-resistant sliding double doors with durable nylon wheels and solid brass bolts, ensuring easy access and longevity. Additionally, twelve adjustable roof vents provide excellent ventilation, creating a healthy environment for your plants

Key Features:

Robust Construction:
The heavy-duty 1.6mm aluminum frame is designed to endure severe weather, including high winds up to 76 mph and snow loads of 25 lbs/ft², ensuring durability and stability.

Comprehensive Warranty:
Enjoy peace of mind with a lifetime warranty on the frame and a 10-year warranty on the panels, showcasing Grandio’s dedication to durability and customer satisfaction.

Superior Insulation:
10mm twin-wall polycarbonate panels offer high thermal efficiency, reducing heating costs and protecting plants from extreme temperatures.

Enhanced Ventilation:
Twelve roof vents with adjustable manual openers allow for precise climate control, promoting healthy plant growth.

User-Friendly Access:
Sliding double doors with high-quality nylon wheels and solid brass bolts provide smooth operation and prevent jamming, facilitating easy entry and exit.

Specifications:

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 Size: 41.5″ W x 85″ H
Doors: Bind-resistant sliding double-doors.
Latch: Magnetic latch doors with key lock.
Reinforcement: Cross-roof truss and cross corner bracing.
Tools: Included
Hardware: Stainless steel nuts and bolts.
Gutters: Built-in rain gutters.
Ventilation: 14 roof vent with adjustable manual openers/latches

Dimensions:

Actual Size: 12′ W x 28′ L x 9.25′ H
Door Size: 41.5″ W x 85″ H

Official Grandio Summit 12×28 Greenhouse Easy Returns [91fEKzUJ] with Steel Mount Installation Kit

Official Grandio Summit 12×28 Greenhouse Easy Returns [91fEKzUJ] with Flat Mount Surface Installation Kit

Choosing the Right Base:

Concrete Slab or Wood Deck Installation: If you plan on constructing your Summit on a concrete slab or wooden surface, the included Flat Mount Base Kit will offer solid footing. The Flat Mount Base Kit includes your choice of anchors for concrete slab or wooden surfaces.

In-earth Installation: If you plan to install your Grandio Summit Greenhouse directly into the earth, we highly recommend our Steel Base Kit with Earth L-Bolt Anchor Kit. The Steel Base Kit is powder coated to resist rust and decay and is designed to be buried into the ground or back filled with gravel providing a solid foundation to combat wind and other extreme environments. Just select “Base Kit (Earth L-Bolt Anchor Kit)” when you checkout and you’ll get everything you need.

Package Includes:

Basic Kit Includes:
10mm Twin-Wall Panels
(14) Roof Windows
Rain Gutters
Drain Kit
Extreme Snow Load Kit
Flat Mount Anchor Kit

Optional Premium Kit Includes:
10mm Twin-Wall Panels
(14) Roof Window
Rain Gutters
Base Kit
Drain Kit
Extreme Snow Load Kit
Flat Mount Anchor Kit
(14) Auto Roof Vent Openers
(2) Pack of 10 Plant Hangers
(1) Trellis Kit
(1) Drip Kit
(2) 8 oz. Brillianize Cleaner

Assembly Instructions:

User Manual:

Official Grandio Summit 12×28 Greenhouse Easy Returns [91fEKzUJ] Manual: Base Kit Installation

Official Grandio Summit 12×28 Greenhouse Easy Returns [91fEKzUJ] Manual: Assembly Instructions

Official Grandio Summit 12×28 Greenhouse Easy Returns [91fEKzUJ] Manual: Itemized Parts List

FAQs:

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.

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.

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.

How long will my order take to get to me?
Lead time is approximately 1-2 days. The order is typically delivered between 1-7 days depending upon the location:

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: Delivery times are approximate and do not include order processing. Weather conditions or carrier delays may impact timelines.