Grandio Summit 12x8 Greenhouse
Why Choose the Summit 12x8 Greenhouse Kit for Year-Round Growing?
This barn-style Summit 12x8 Greenhouse Kit isn’t just about gardening – it’s a robust solution designed for both serious hobbyists and professional growers who need a high-performing, durable, and beautiful greenhouse. Engineered to withstand harsh climates, its aluminum frame and UV-protected 10mm polycarbonate panels ensure you can extend your growing season with ease and confidence. Whether you’re growing delicate herbs or preparing seedlings for the coming season, the Summit 12x8 Greenhouse Kit provides the optimal environment.
BENEFITS
- Strong Build for Tough Weather: Made with a solid 1.66m aluminum frame and thick, 10mm twin-wall polycarbonate panels, this greenhouse keeps your plants warm in cold weather and cool in the heat. Its design helps to keep temperatures stable, giving plants a safe, steady place to grow no matter the season.
- Great Ventilation for Healthier Plants: With four roof windows and easy-glide double doors, this greenhouse allows plenty of fresh air inside, helping to keep the temperature and humidity just right for your plants. The doors are hung from above to move smoothly without sticking, making it easy to get in and out while keeping a tight seal.
- Convenient and Long-Lasting Features: The Summit 12x8 comes with extra features like a rain gutter, drainage kit, snow load kit, and anchoring kit to keep it steady and secure. The doors have durable wheels and lockable handles, so you know your greenhouse is built to last. These thoughtful touches make it easier to keep your plants thriving for years.
The Summit 12x8 Greenhouse Kit offers the perfect setup for growing all year, giving you the strength, quality, and comfort you need to enjoy your gardening to the fullest.
SPECIFICATIONS
| Frame | Heavy Duty Aluminum |
| Color | Powder-Coated Green |
| Panels | 10mm Twin-wall UV-protected Polycarbonate |
| Doors | Bind-resistant Sliding Double doors |
| Latch | Magnetic latch doors with key lock |
| Reinforcement | Cross-roof truss and cross-corner bracing |
| Hardware | Stainless steel nuts and bolts |
| Rain Gutters | Yes |
| Ventilation | 4 Roof vents with adjustable manual openers/latches |
| Wind Rating | Withstands winds up to 76 mph* |
| Snow Rating | Maximum snow load of 25lbs./ft² of snow* |
DIMENSIONS
- Actual Size: 12' W x 8'1" L x 9.25' H
- Door Size: 41.5" W x 85" H
GRANDIO GREENHOUSE MATERIALS VS OTHER BRANDS
WHAT'S INCLUDED IN THE PACKAGE?
Basic Kit Includes:
- 10mm Twin-Wall Panels
- (4) Roof Windows
- Rain Gutters
- Drain Kit
- Extreme Snow Load Kit
- Flat Mount Anchor Kit
Optional Premium Kit Includes:
- 10mm Twin-Wall Panels
- (4) Roof Windows
- Rain Gutters
- Base Kit
- Drain Kit
- Extreme Snow Load Kit
- Flat Mount Anchor Kit
- (4) Auto Roof Vent Openers
- (1) Pack of 10 Plant Hangers
- (1) Trellis Kit
- (1) Drip Kit
- (1) 8 oz. Brillianize Cleaner
ASSEMBLY VIDEO
Grandio Summit 12x16 Assembly Time-lapse - 1 minute video
Grandio Ascent 8x8 Assembly - 11 minute video
Grandio Summit Weather Stripping Installation
GRANDIO SUMMIT #2 ASSEMBLY INSTRUCTION
Compare Grandio Greenhouse Models
| Feature |
Grandio Element 6x12 Greenhouse |
Grandio Ascent 8x12 Greenhouse |
Grandio Elite 8x12 Greenhouse |
Grandio Summit 12x8 Greenhouse |
|---|---|---|---|---|
| Footprint (W x D) | 6' x 12' | 8' x 12' | 8' x 12' | 12' x 8' |
| Total Area | 72 sq ft | 96 sq ft | 96 sq ft | 96 sq ft |
| Peak Height | 7'6" | 7'9" | 8" | 9.25' |
| Sidewall Height | 5'5" | 5'5" | 5'5" | 5'5" |
| Frame Material | Heavy-duty Aluminum | Heavy-duty aluminum | Heavy-duty aluminum | Heavy-duty aluminum |
| Panel Material | 10mm Twin-wall UV-protected Polycarbonate | 6mm Twin-wall UV-protected Polycarbonate | 10mm Twin-wall UV-protected Polycarbonate | 10mm Twin-wall UV-protected Polycarbonate |
| Latch | Easy-latch doors with double-ball catch | Easy-latch doors with double-ball catch | Easy-latch doors with double-ball catch | Magnetic latch doors with key lock |
| Door Type | Sliding Double | Sliding Double | Sliding Double | Sliding Double |
| Ventilation | (3) Roof vents | (3) Roof vents | (3) Roof vents | (4) Roof vents |
| Warranty | Lifetime frame / 10-year panels | Lifetime frame / 10-year panels | Lifetime frame / 10-year panels | Lifetime frame / 10-year panels |
Compare with Other Greenhouse Brands
| Feature |
Grandio Summit 12x8 Greenhouse |
Riverstone Monticello Black Premium Greenhouse |
EZ-Fit Greenhouse Kit |
Little Cottage Co. Colonial Gable Greenhouse |
|---|---|---|---|---|
| Size | 12x8, 12x12, 12x16, 12x20, 12x24, 12x28, 12x32 | 8x8, 8x12, 8x16, 8x20, 8x24 | 8x8, 8x10, 8x12, 10x12, 10x14, 10x16, 12x16, 12x20, 12x24 | 8x8, 8x12, 8x16, 10x12, 10x14, 10x16 |
| Frame Material | Powder-coated heavy-duty aluminum (1.6 mm thick) | Commercial-grade extruded aluminum (black powder-coated) | LP SmartSide® engineered wood siding with treated wood frame | LP SmartSide® engineered wood siding with treated wood frame |
| Panel Material | 10mm Twin-wall Polycarbonate | 8mm Twin-wall Polycarbonate | Corrugated polycarbonate roofing panels | Corrugated polycarbonate roofing panels |
| Door Type | Sliding double doors | Hinged double doors | Single door with 2 transom windows (Optional Double Door Available) |
Colonial Dutch door with 1 transom window |
| Ventilation | 4 roof vents | 1 Automatic roof vent(s) | Operable windows (with screens) + 2 gable-end air vents | Operable windows (with screens) + 2 gable-end air vents |
| Color | Green powder-coat aluminum frame • clear polycarbonate panels | Black powder-coat aluminum frame • clear polycarbonate panels | Primed and ready to paint | Primed and ready to paint |
| Included Accessories | Rain gutters, snow load kit, anchoring kit | Rain gutters, roof vent, base kit | Shelves on 3 sides | Shelves on 3 sides, hanging rods, 2 louvers |
Optional Accessories
 |
Drain Kit - Downspout for Grandio Greenhouse Gutter Systems, designed for installation at each of the four corners of the greenhouse. It’s made to be installed directly into the aluminum frame and gutter of the greenhouse. The easy-to-install downspout drain kit includes (4) 20mm black pipes, (4) gutter attachment gaskets, and (4) side wall brackets with screws. One kit has everything needed to add downspouts to a Grandio Greenhouse. |
 |
Automatic Roof Vent Opener - Automatically opens and closes the roof vent window based on temperature changes. The opener contains a metal cylinder with a mineral that expands when heated, pushing a piston to open the vent. When the temperature cools, the mineral contracts, and a spring closes the vent, resetting the piston. The vent opens and closes gradually, allowing the right amount of airflow for cooling. |
 |
Auto Louver Window Opener - Automatically opens and closes the louver window as the temperature changes. The opener has a metal cylinder with a mineral that expands when heated, pushing a piston to open the vent. As the temperature cools, the mineral contracts, and a spring closes the vent and resets the piston. The vent opens and closes gradually, providing just the right amount of airflow for cooling. This Auto Louver Opener attaches to the left side of your louver window. |
 |
Louver Window - add more ventilation to your greenhouse. Louver window frame comes powder coated in green, with 6mm twin wall polycarbonate panels. |
 |
The Drip Irrigation Watering Kit - is a water-efficient system designed for shrubs, trees, flowers, and bushes, covering up to 150 square feet with easy expandability. It's a DIY-friendly installation with no gluing required, using high-quality UV-resistant materials. The kit includes 24 pressure-compensating drippers (20 at 1 GPH, 2 at 2 GPH, and 2 at 4 GPH) for consistent water delivery to plant roots. A backflow preventer ensures water safety by preventing siphoning into the main supply. |
 |
Moisture Control Kit - featuring Anti Dust Tape and Waterproof All-Weather Silicone Caulk, protects your Grandio Greenhouse from insects, dirt, mold, and algae. The tape's 45-micron filters allow condensation to escape while preventing algae and mold growth with a fungicidal coating. Combined with the silicone caulk, this kit ensures long-lasting protection and maintains the greenhouse's pristine condition. |
 |
Shade Net - are essential for regulating greenhouse temperatures, especially during sunny spring, autumn, and summer days. Designed to reduce intense sunlight by 50%, they help keep your greenhouse cooler and prevent overheating. |
 |
Plant Hangers - These versatile plastic hangers are designed for greenhouse use, supporting shade cloths, hanging baskets with quarter-inch hooks, and stringing taller plants or vines. Easy to install, they simply twist into the roof rafter channels. |
SHIPPING INFO
Lead Time is 1 to 2 days. Orders typically arrive within 1-7 business days, depending on your location:
- West: 2-4 days
- Northwest: 1-3 days
- Southwest: 3-5 days
- Midwest: 4-6 days
- East: 5-7 days
Note: Delivery times are estimates and exclude order processing time. Delays may occur due to weather or carrier issues.
Frequently Asked Questions
Can one person assemble the Grandio Summit 12x8 Greenhouse Kit?
Does the Grandio Summit 12x8 come with an anchoring or base kit?
What are the benefits of 10mm twin-wall polycarbonate panels in this greenhouse?
Can I install automatic roof vent openers in the Grandio Summit 12x8?
What accessories are included with the Grandio Summit 12x8 Greenhouse Kit?
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Grandio Summit 12x8 Greenhouse
Grandio Summit 12x8 Greenhouse
Why Choose the Summit 12x8 Greenhouse Kit for Year-Round Growing?
This barn-style Summit 12x8 Greenhouse Kit isn’t just about gardening – it’s a robust solution designed for both serious hobbyists and professional growers who need a high-performing, durable, and beautiful greenhouse. Engineered to withstand harsh climates, its aluminum frame and UV-protected 10mm polycarbonate panels ensure you can extend your growing season with ease and confidence. Whether you’re growing delicate herbs or preparing seedlings for the coming season, the Summit 12x8 Greenhouse Kit provides the optimal environment.
BENEFITS
- Strong Build for Tough Weather: Made with a solid 1.66m aluminum frame and thick, 10mm twin-wall polycarbonate panels, this greenhouse keeps your plants warm in cold weather and cool in the heat. Its design helps to keep temperatures stable, giving plants a safe, steady place to grow no matter the season.
- Great Ventilation for Healthier Plants: With four roof windows and easy-glide double doors, this greenhouse allows plenty of fresh air inside, helping to keep the temperature and humidity just right for your plants. The doors are hung from above to move smoothly without sticking, making it easy to get in and out while keeping a tight seal.
- Convenient and Long-Lasting Features: The Summit 12x8 comes with extra features like a rain gutter, drainage kit, snow load kit, and anchoring kit to keep it steady and secure. The doors have durable wheels and lockable handles, so you know your greenhouse is built to last. These thoughtful touches make it easier to keep your plants thriving for years.
The Summit 12x8 Greenhouse Kit offers the perfect setup for growing all year, giving you the strength, quality, and comfort you need to enjoy your gardening to the fullest.
SPECIFICATIONS
| Frame | Heavy Duty Aluminum |
| Color | Powder-Coated Green |
| Panels | 10mm Twin-wall UV-protected Polycarbonate |
| Doors | Bind-resistant Sliding Double doors |
| Latch | Magnetic latch doors with key lock |
| Reinforcement | Cross-roof truss and cross-corner bracing |
| Hardware | Stainless steel nuts and bolts |
| Rain Gutters | Yes |
| Ventilation | 4 Roof vents with adjustable manual openers/latches |
| Wind Rating | Withstands winds up to 76 mph* |
| Snow Rating | Maximum snow load of 25lbs./ft² of snow* |
DIMENSIONS
- Actual Size: 12' W x 8'1" L x 9.25' H
- Door Size: 41.5" W x 85" H
GRANDIO GREENHOUSE MATERIALS VS OTHER BRANDS
WHAT'S INCLUDED IN THE PACKAGE?
Basic Kit Includes:
- 10mm Twin-Wall Panels
- (4) Roof Windows
- Rain Gutters
- Drain Kit
- Extreme Snow Load Kit
- Flat Mount Anchor Kit
Optional Premium Kit Includes:
- 10mm Twin-Wall Panels
- (4) Roof Windows
- Rain Gutters
- Base Kit
- Drain Kit
- Extreme Snow Load Kit
- Flat Mount Anchor Kit
- (4) Auto Roof Vent Openers
- (1) Pack of 10 Plant Hangers
- (1) Trellis Kit
- (1) Drip Kit
- (1) 8 oz. Brillianize Cleaner
ASSEMBLY VIDEO
Grandio Summit 12x16 Assembly Time-lapse - 1 minute video
Grandio Ascent 8x8 Assembly - 11 minute video
Grandio Summit Weather Stripping Installation
GRANDIO SUMMIT #2 ASSEMBLY INSTRUCTION
Compare Grandio Greenhouse Models
| Feature |
Grandio Element 6x12 Greenhouse |
Grandio Ascent 8x12 Greenhouse |
Grandio Elite 8x12 Greenhouse |
Grandio Summit 12x8 Greenhouse |
|---|---|---|---|---|
| Footprint (W x D) | 6' x 12' | 8' x 12' | 8' x 12' | 12' x 8' |
| Total Area | 72 sq ft | 96 sq ft | 96 sq ft | 96 sq ft |
| Peak Height | 7'6" | 7'9" | 8" | 9.25' |
| Sidewall Height | 5'5" | 5'5" | 5'5" | 5'5" |
| Frame Material | Heavy-duty Aluminum | Heavy-duty aluminum | Heavy-duty aluminum | Heavy-duty aluminum |
| Panel Material | 10mm Twin-wall UV-protected Polycarbonate | 6mm Twin-wall UV-protected Polycarbonate | 10mm Twin-wall UV-protected Polycarbonate | 10mm Twin-wall UV-protected Polycarbonate |
| Latch | Easy-latch doors with double-ball catch | Easy-latch doors with double-ball catch | Easy-latch doors with double-ball catch | Magnetic latch doors with key lock |
| Door Type | Sliding Double | Sliding Double | Sliding Double | Sliding Double |
| Ventilation | (3) Roof vents | (3) Roof vents | (3) Roof vents | (4) Roof vents |
| Warranty | Lifetime frame / 10-year panels | Lifetime frame / 10-year panels | Lifetime frame / 10-year panels | Lifetime frame / 10-year panels |
Compare with Other Greenhouse Brands
| Feature |
Grandio Summit 12x8 Greenhouse |
Riverstone Monticello Black Premium Greenhouse |
EZ-Fit Greenhouse Kit |
Little Cottage Co. Colonial Gable Greenhouse |
|---|---|---|---|---|
| Size | 12x8, 12x12, 12x16, 12x20, 12x24, 12x28, 12x32 | 8x8, 8x12, 8x16, 8x20, 8x24 | 8x8, 8x10, 8x12, 10x12, 10x14, 10x16, 12x16, 12x20, 12x24 | 8x8, 8x12, 8x16, 10x12, 10x14, 10x16 |
| Frame Material | Powder-coated heavy-duty aluminum (1.6 mm thick) | Commercial-grade extruded aluminum (black powder-coated) | LP SmartSide® engineered wood siding with treated wood frame | LP SmartSide® engineered wood siding with treated wood frame |
| Panel Material | 10mm Twin-wall Polycarbonate | 8mm Twin-wall Polycarbonate | Corrugated polycarbonate roofing panels | Corrugated polycarbonate roofing panels |
| Door Type | Sliding double doors | Hinged double doors | Single door with 2 transom windows (Optional Double Door Available) |
Colonial Dutch door with 1 transom window |
| Ventilation | 4 roof vents | 1 Automatic roof vent(s) | Operable windows (with screens) + 2 gable-end air vents | Operable windows (with screens) + 2 gable-end air vents |
| Color | Green powder-coat aluminum frame • clear polycarbonate panels | Black powder-coat aluminum frame • clear polycarbonate panels | Primed and ready to paint | Primed and ready to paint |
| Included Accessories | Rain gutters, snow load kit, anchoring kit | Rain gutters, roof vent, base kit | Shelves on 3 sides | Shelves on 3 sides, hanging rods, 2 louvers |
Optional Accessories
|
Drain Kit - Downspout for Grandio Greenhouse Gutter Systems, designed for installation at each of the four corners of the greenhouse. It’s made to be installed directly into the aluminum frame and gutter of the greenhouse. The easy-to-install downspout drain kit includes (4) 20mm black pipes, (4) gutter attachment gaskets, and (4) side wall brackets with screws. One kit has everything needed to add downspouts to a Grandio Greenhouse. |
|
|
Automatic Roof Vent Opener - Automatically opens and closes the roof vent window based on temperature changes. The opener contains a metal cylinder with a mineral that expands when heated, pushing a piston to open the vent. When the temperature cools, the mineral contracts, and a spring closes the vent, resetting the piston. The vent opens and closes gradually, allowing the right amount of airflow for cooling. |
|
|
Auto Louver Window Opener - Automatically opens and closes the louver window as the temperature changes. The opener has a metal cylinder with a mineral that expands when heated, pushing a piston to open the vent. As the temperature cools, the mineral contracts, and a spring closes the vent and resets the piston. The vent opens and closes gradually, providing just the right amount of airflow for cooling. This Auto Louver Opener attaches to the left side of your louver window. |
|
|
Louver Window - add more ventilation to your greenhouse. Louver window frame comes powder coated in green, with 6mm twin wall polycarbonate panels. |
|
|
The Drip Irrigation Watering Kit - is a water-efficient system designed for shrubs, trees, flowers, and bushes, covering up to 150 square feet with easy expandability. It's a DIY-friendly installation with no gluing required, using high-quality UV-resistant materials. The kit includes 24 pressure-compensating drippers (20 at 1 GPH, 2 at 2 GPH, and 2 at 4 GPH) for consistent water delivery to plant roots. A backflow preventer ensures water safety by preventing siphoning into the main supply. |
|
|
Moisture Control Kit - featuring Anti Dust Tape and Waterproof All-Weather Silicone Caulk, protects your Grandio Greenhouse from insects, dirt, mold, and algae. The tape's 45-micron filters allow condensation to escape while preventing algae and mold growth with a fungicidal coating. Combined with the silicone caulk, this kit ensures long-lasting protection and maintains the greenhouse's pristine condition. |
|
|
Shade Net - are essential for regulating greenhouse temperatures, especially during sunny spring, autumn, and summer days. Designed to reduce intense sunlight by 50%, they help keep your greenhouse cooler and prevent overheating. |
|
|
Plant Hangers - These versatile plastic hangers are designed for greenhouse use, supporting shade cloths, hanging baskets with quarter-inch hooks, and stringing taller plants or vines. Easy to install, they simply twist into the roof rafter channels. |
SHIPPING INFO
Lead Time is 1 to 2 days. Orders typically arrive within 1-7 business days, depending on your location:
- West: 2-4 days
- Northwest: 1-3 days
- Southwest: 3-5 days
- Midwest: 4-6 days
- East: 5-7 days
Note: Delivery times are estimates and exclude order processing time. Delays may occur due to weather or carrier issues.
Frequently Asked Questions
Can one person assemble the Grandio Summit 12x8 Greenhouse Kit?
Does the Grandio Summit 12x8 come with an anchoring or base kit?
What are the benefits of 10mm twin-wall polycarbonate panels in this greenhouse?
Can I install automatic roof vent openers in the Grandio Summit 12x8?
What accessories are included with the Grandio Summit 12x8 Greenhouse Kit?
Original: $3,899.00
-65%$3,899.00
$1,364.65Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Why Choose the Summit 12x8 Greenhouse Kit for Year-Round Growing?
This barn-style Summit 12x8 Greenhouse Kit isn’t just about gardening – it’s a robust solution designed for both serious hobbyists and professional growers who need a high-performing, durable, and beautiful greenhouse. Engineered to withstand harsh climates, its aluminum frame and UV-protected 10mm polycarbonate panels ensure you can extend your growing season with ease and confidence. Whether you’re growing delicate herbs or preparing seedlings for the coming season, the Summit 12x8 Greenhouse Kit provides the optimal environment.
BENEFITS
- Strong Build for Tough Weather: Made with a solid 1.66m aluminum frame and thick, 10mm twin-wall polycarbonate panels, this greenhouse keeps your plants warm in cold weather and cool in the heat. Its design helps to keep temperatures stable, giving plants a safe, steady place to grow no matter the season.
- Great Ventilation for Healthier Plants: With four roof windows and easy-glide double doors, this greenhouse allows plenty of fresh air inside, helping to keep the temperature and humidity just right for your plants. The doors are hung from above to move smoothly without sticking, making it easy to get in and out while keeping a tight seal.
- Convenient and Long-Lasting Features: The Summit 12x8 comes with extra features like a rain gutter, drainage kit, snow load kit, and anchoring kit to keep it steady and secure. The doors have durable wheels and lockable handles, so you know your greenhouse is built to last. These thoughtful touches make it easier to keep your plants thriving for years.
The Summit 12x8 Greenhouse Kit offers the perfect setup for growing all year, giving you the strength, quality, and comfort you need to enjoy your gardening to the fullest.
SPECIFICATIONS
| Frame | Heavy Duty Aluminum |
| Color | Powder-Coated Green |
| Panels | 10mm Twin-wall UV-protected Polycarbonate |
| Doors | Bind-resistant Sliding Double doors |
| Latch | Magnetic latch doors with key lock |
| Reinforcement | Cross-roof truss and cross-corner bracing |
| Hardware | Stainless steel nuts and bolts |
| Rain Gutters | Yes |
| Ventilation | 4 Roof vents with adjustable manual openers/latches |
| Wind Rating | Withstands winds up to 76 mph* |
| Snow Rating | Maximum snow load of 25lbs./ft² of snow* |
DIMENSIONS
- Actual Size: 12' W x 8'1" L x 9.25' H
- Door Size: 41.5" W x 85" H
GRANDIO GREENHOUSE MATERIALS VS OTHER BRANDS
WHAT'S INCLUDED IN THE PACKAGE?
Basic Kit Includes:
- 10mm Twin-Wall Panels
- (4) Roof Windows
- Rain Gutters
- Drain Kit
- Extreme Snow Load Kit
- Flat Mount Anchor Kit
Optional Premium Kit Includes:
- 10mm Twin-Wall Panels
- (4) Roof Windows
- Rain Gutters
- Base Kit
- Drain Kit
- Extreme Snow Load Kit
- Flat Mount Anchor Kit
- (4) Auto Roof Vent Openers
- (1) Pack of 10 Plant Hangers
- (1) Trellis Kit
- (1) Drip Kit
- (1) 8 oz. Brillianize Cleaner
ASSEMBLY VIDEO
Grandio Summit 12x16 Assembly Time-lapse - 1 minute video
Grandio Ascent 8x8 Assembly - 11 minute video
Grandio Summit Weather Stripping Installation
GRANDIO SUMMIT #2 ASSEMBLY INSTRUCTION
Compare Grandio Greenhouse Models
| Feature |
Grandio Element 6x12 Greenhouse |
Grandio Ascent 8x12 Greenhouse |
Grandio Elite 8x12 Greenhouse |
Grandio Summit 12x8 Greenhouse |
|---|---|---|---|---|
| Footprint (W x D) | 6' x 12' | 8' x 12' | 8' x 12' | 12' x 8' |
| Total Area | 72 sq ft | 96 sq ft | 96 sq ft | 96 sq ft |
| Peak Height | 7'6" | 7'9" | 8" | 9.25' |
| Sidewall Height | 5'5" | 5'5" | 5'5" | 5'5" |
| Frame Material | Heavy-duty Aluminum | Heavy-duty aluminum | Heavy-duty aluminum | Heavy-duty aluminum |
| Panel Material | 10mm Twin-wall UV-protected Polycarbonate | 6mm Twin-wall UV-protected Polycarbonate | 10mm Twin-wall UV-protected Polycarbonate | 10mm Twin-wall UV-protected Polycarbonate |
| Latch | Easy-latch doors with double-ball catch | Easy-latch doors with double-ball catch | Easy-latch doors with double-ball catch | Magnetic latch doors with key lock |
| Door Type | Sliding Double | Sliding Double | Sliding Double | Sliding Double |
| Ventilation | (3) Roof vents | (3) Roof vents | (3) Roof vents | (4) Roof vents |
| Warranty | Lifetime frame / 10-year panels | Lifetime frame / 10-year panels | Lifetime frame / 10-year panels | Lifetime frame / 10-year panels |
Compare with Other Greenhouse Brands
| Feature |
Grandio Summit 12x8 Greenhouse |
Riverstone Monticello Black Premium Greenhouse |
EZ-Fit Greenhouse Kit |
Little Cottage Co. Colonial Gable Greenhouse |
|---|---|---|---|---|
| Size | 12x8, 12x12, 12x16, 12x20, 12x24, 12x28, 12x32 | 8x8, 8x12, 8x16, 8x20, 8x24 | 8x8, 8x10, 8x12, 10x12, 10x14, 10x16, 12x16, 12x20, 12x24 | 8x8, 8x12, 8x16, 10x12, 10x14, 10x16 |
| Frame Material | Powder-coated heavy-duty aluminum (1.6 mm thick) | Commercial-grade extruded aluminum (black powder-coated) | LP SmartSide® engineered wood siding with treated wood frame | LP SmartSide® engineered wood siding with treated wood frame |
| Panel Material | 10mm Twin-wall Polycarbonate | 8mm Twin-wall Polycarbonate | Corrugated polycarbonate roofing panels | Corrugated polycarbonate roofing panels |
| Door Type | Sliding double doors | Hinged double doors | Single door with 2 transom windows (Optional Double Door Available) |
Colonial Dutch door with 1 transom window |
| Ventilation | 4 roof vents | 1 Automatic roof vent(s) | Operable windows (with screens) + 2 gable-end air vents | Operable windows (with screens) + 2 gable-end air vents |
| Color | Green powder-coat aluminum frame • clear polycarbonate panels | Black powder-coat aluminum frame • clear polycarbonate panels | Primed and ready to paint | Primed and ready to paint |
| Included Accessories | Rain gutters, snow load kit, anchoring kit | Rain gutters, roof vent, base kit | Shelves on 3 sides | Shelves on 3 sides, hanging rods, 2 louvers |
Optional Accessories
|
Drain Kit - Downspout for Grandio Greenhouse Gutter Systems, designed for installation at each of the four corners of the greenhouse. It’s made to be installed directly into the aluminum frame and gutter of the greenhouse. The easy-to-install downspout drain kit includes (4) 20mm black pipes, (4) gutter attachment gaskets, and (4) side wall brackets with screws. One kit has everything needed to add downspouts to a Grandio Greenhouse. |
|
|
Automatic Roof Vent Opener - Automatically opens and closes the roof vent window based on temperature changes. The opener contains a metal cylinder with a mineral that expands when heated, pushing a piston to open the vent. When the temperature cools, the mineral contracts, and a spring closes the vent, resetting the piston. The vent opens and closes gradually, allowing the right amount of airflow for cooling. |
|
|
Auto Louver Window Opener - Automatically opens and closes the louver window as the temperature changes. The opener has a metal cylinder with a mineral that expands when heated, pushing a piston to open the vent. As the temperature cools, the mineral contracts, and a spring closes the vent and resets the piston. The vent opens and closes gradually, providing just the right amount of airflow for cooling. This Auto Louver Opener attaches to the left side of your louver window. |
|
|
Louver Window - add more ventilation to your greenhouse. Louver window frame comes powder coated in green, with 6mm twin wall polycarbonate panels. |
|
|
The Drip Irrigation Watering Kit - is a water-efficient system designed for shrubs, trees, flowers, and bushes, covering up to 150 square feet with easy expandability. It's a DIY-friendly installation with no gluing required, using high-quality UV-resistant materials. The kit includes 24 pressure-compensating drippers (20 at 1 GPH, 2 at 2 GPH, and 2 at 4 GPH) for consistent water delivery to plant roots. A backflow preventer ensures water safety by preventing siphoning into the main supply. |
|
|
Moisture Control Kit - featuring Anti Dust Tape and Waterproof All-Weather Silicone Caulk, protects your Grandio Greenhouse from insects, dirt, mold, and algae. The tape's 45-micron filters allow condensation to escape while preventing algae and mold growth with a fungicidal coating. Combined with the silicone caulk, this kit ensures long-lasting protection and maintains the greenhouse's pristine condition. |
|
|
Shade Net - are essential for regulating greenhouse temperatures, especially during sunny spring, autumn, and summer days. Designed to reduce intense sunlight by 50%, they help keep your greenhouse cooler and prevent overheating. |
|
|
Plant Hangers - These versatile plastic hangers are designed for greenhouse use, supporting shade cloths, hanging baskets with quarter-inch hooks, and stringing taller plants or vines. Easy to install, they simply twist into the roof rafter channels. |
SHIPPING INFO
Lead Time is 1 to 2 days. Orders typically arrive within 1-7 business days, depending on your location:
- West: 2-4 days
- Northwest: 1-3 days
- Southwest: 3-5 days
- Midwest: 4-6 days
- East: 5-7 days
Note: Delivery times are estimates and exclude order processing time. Delays may occur due to weather or carrier issues.
