Welcome to the Grandio Summit 12×28
Premium Kit Includes:
- 10mm Twin-Wall Panels
- (14) Roof Windows
- Rain Gutters
- Drain Kit
- Extreme Snow Load Kit
- Flat Mount Anchor Kit
- (14) Auto Roof Window Openers
- (2) Packs of 10 Plant Hangers
- (2) 8 oz. Brillianize Cleaner
- (1) Trellis Kit
- (1) Drip Kit
Basic Kit Includes:
- 10mm Twin-Wall Panels
- (14) Roof Windows
- Rain Gutters
- Drain Kit
- Extreme Snow Load Kit
- Flat Mount Anchor Kit
Actual Size: 12′ W x 28′ L x 9.25′ H
This beautiful barn-style greenhouse gives you a year-round growing space with a heavy-duty aluminum frame and 10mm twin-wall polycarbonate panels.
Engineered to perform in harsh environments, the Grandio Summit’s rugged durability makes it one of the most insulated greenhouses on the market. Its barn shape design is both elegant and functional, allowing plenty of growing space while looking great in your yard.
Made to meet the highest standards of hobby and professional gardeners alike, the 1.6mm profile aluminum frame provides a stronger and more durable build than its competitors.
The Summit’s range of features and accessories provides a well ventilated growing space with ample roof windows and re-engineered sliding double doors. The UV-protected 10mm paneling has an (R) value of 1.89* and heat loss (U) value of 0.53, allowing for optimal insulation in all climates.
The doors are hung from above which eliminates jamming and the door wheels are made from high-quality nylon for durability. The door wheel bolt is turned from solid brass with a smooth shank to reduce wear. The doors come standard with heavy-duty lockable door handles and included key.
Carefully engineered to the highest standards, gardeners of all types will love the combination of strength, quality, performance, and value that Grandio Greenhouses are known for.
Reach the Summit with Grandio!
Cover Your Bases
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
Take A Closer Look
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Incredible Warranty
Our lifetime frame warranty and 10-year panel warranty do more than give you peace of mind, it’s a commitment from us to maintain a high degree of quality, dependability and reliability. Our Grandio Greenhouses are custom made to meet high standards and quality manufacturing to withstand extreme wind and weather conditions.
*R-Value – the measurement of ‘insulating ability’ of the material. Higher R-Value refers to higher insulation value.
*U-Value – the measurement of ‘heat loss’ through the material. The lower the U-Value the less heat is escaping.
