Grandio Summit 12x12 by Grandio Greenhouses

Grandio Summit 12x12 by Grandio Greenhouses

Your Price:

$4,499.00 $5,795.00

You Save: $1,296.00 23%

Premium

Anchor Kit

Order in the next to get it by

No Additional Fee's Added At Checkout. The price you see is the price you pay. We have private relationships with all of our manufacturers which allows us bottom line pricing backed by our 100% Best Price Guarantee. If you find it somewhere else for cheaper. We will match the price. No Questions Asked.

Warrenty
All Orders Placed Today Ship For Free!
We will beat any price
100% Best Price Guarantee
Free shipping
All Orders Processed Within 1 Business Day
Free shipping
All Orders 100% Protected with SSL Security

Grandio Summit 12×12

by Grandio Greenhouses

SKU: SUMMIT-1212

Free Shipping

Description:

Premium Walk-In Greenhouse for Cold Climates, Windy Sites and Year-Round Growers. This barn-style greenhouse delivers professional-grade performance with a bold, functional design. Whether you're growing delicate ornamentals, seed-starting or cultivating crops all year long, the Grandio Summit 12x12 makes it possible—no matter the season. With rugged framing, commercial insulation and secure access, it's built to thrive in high-snow, high-wind and low-temp environments.

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

Optional Add ons:

6x Automatic Roof Window Opener (Included in Premium Kit) $474.00
Drip Irrigation Watering Kit (Included in Premium Kit) $49.00
Moisture Control Kit $159.00
Pack of 10 Plant Hangers $25.00
Shade Net $419.00
Backdoor Conversion Kit $600.00
2x Louver Window $240.00
4x Louver Window $480.00
2x Automatic Louver Window Opener $158.00
4x Automatic Louver Window Opener $316.00

Just a few Benefits that set the Grandio Greenhouse apart from the others:

1. Year-Round Growing in Any Climate:

Engineered specifically for harsh environments.
Features the highest insulation on the market (R-Value 1.89 / U-Value 0.53) thanks to 10mm twin-wall polycarbonate panels.
This optimal thickness provides exceptional winter insulation, protecting plants from cold and allowing productive gardening all year.

2. Unmatched Strength & Weatherproof Durability:

Built with a heavy-duty 1.6mm aluminum frame that's significantly stronger and more durable than competitor greenhouses using PVC.
Won't warp, melt, or crack like PVC alternatives.
Engineered to perform reliably season after season, even in demanding conditions.

3. Spacious, Elegant Design & Superior Functionality:

The beautiful barn-style shape is not just attractive but also highly functional, maximizing headroom and usable growing space.
Features well-ventilated design with gliding double doors that hang from above to eliminate jamming.
Includes durable nylon door wheels for smooth, long-lasting operation.

4. Premium Build Quality & Hassle-Free Experience:

Heavy-duty construction combines the robust aluminum frame with superior 10mm twin-wall panels for lasting performance.
Designed with an easy-to-assemble system.
Incorporates a wide range of features and accessories culminating in an exceptional gardening environment that meets the highest standards for both amateur and professional gardeners.

The Grandio Summit Greenhouse Kit is more than just a greenhouse; it's an environment every plant needs to grow strong & healthy all year long.

Premium Kit Includes:

10mm Twin-Wall Panels
(6) Roof Windows
Rain Gutters
Drain Kit
Extreme Snow Load Kit
Flat Mount Anchor Kit
(6) Auto Roof Window Openers
(1) Pack of 10 Plant Hangers
(1) 8 oz. Brillianize Cleaner
(1) Trellis Kit
(1) Drip Kit

Basic Kit Includes:

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

Actual Size: 12’ W x 12’ L x 9.25' H

SPECIFICATIONS

Technical details for those who need more.

Height: 9′ 3"
Width: 12′
Length: 12′
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: (6) roof vents with adjustable manual openers/latches.

Frame Warranty: Lifetime

Panel Warranty: 10 years

GRANDIO GREENHOUSE MATERIALS VS OTHER BRANDS

Choosing the right frame is one of the most critical decisions when selecting a greenhouse. The most common options include galvanized steel, wood, PVC, composite materials, and aluminum.

We recommend aluminum for its strength, lightweight properties, and rust resistance. Additionally, it’s relatively easy to assemble and often features anodized or powder-coated finishes for enhanced corrosion protection.

However, not all aluminum frames are equal.

Key considerations for aluminum frames:

1. Wall Thickness – When examining the cross-section (or profile) of an aluminum piece, the thickness of its structural walls determines its strength. A thicker wall means greater load-bearing capacity and durability.

2. Weight – Surprisingly, this is often overlooked. Since the frame makes up most of a greenhouse’s weight (polycarbonate panels are lightweight), comparing total weights can reveal the quality and structural integrity of the aluminum used.

By evaluating these factors, you can ensure your Grandio Greenhouse is a tough, sturdy, long-lasting greenhouse.

Automatic Louver Vent Opener - The metal cylinder in the opener responds to an increase in outside temperature by automatically and gradually opening the louver window. As the temperature cools, a spring closes the vent or window and resets the piston. Automatic openers are extremely convenient for maintaining the proper greenhouse temperature and preventing your plants from getting overheated on hot summer days. The automatic openers are designed for simple installation.

Automatic Roof Vent Opener - The metal cylinder in the opener responds to an increase in outside temperature by automatically and gradually opening the roof vent. As the temperature cools, a spring closes the vent or window and resets the piston. Automatic openers are extremely convenient for maintaining the proper greenhouse temperature and preventing your plants from getting overheated on hot summer days. The automatic openers from Grandio are designed for simple installation.

Drain Kit - The drain kit down spout installs directly into the frame and gutter of your Grandio greenhouse. It includes four 20mm black pipes, four gutter attachment gaskets, and four side wall brackets with screws.

Drip Irrigation Watering Kit - The drip kit helps to keep your plants hydrated with minimal water waste and is perfect for a wide variety of plants. This kit can cover up to 150 square feet and includes 20 drippers at 1 GPH (gallons per hour), 2 drippers at 2 GPH, and 2 drippers at 4 GPH. A backflow preventer is included to stop water from being siphoned back into the main water supply, and the kit is designed for easy do-it-yourself installation.

Frame To Base Brackets - The frame to base brackets provide extra support to the inner walls of your greenhouse from windy conditions and severe weather by firmly locking the frame of the greenhouse to the base. Each pack of four includes 4 EZ1 wall to base brackets, 4 EZ2 inner base brackets, and 16 S02/ML01 bolt and nut combos. The link below in the manuals section shows the recommended number and layout of frame to base brackets for this greenhouse.

Louver Window - The elegant louver windows add additional ventilation to the sides of your greenhouse. Each window has 6mm polycarbonate panels and can be paired with an optional automatic louver window opener for hassle-free operation on hot days when opening windows and vents is important.

Moisture Control Kit - The moisture contol kit includes multiple units of waterproof all weather silicone caulk and a specialized anti-dust tape to completely seal your greenhouse. The anti-dust tape has a fungicidal coating and 45 micron filters that allow condensation to escape the flutes of the polycarbonate panels. The kit provides waterproofing and will help prevent dirt, mold, algae, and insects from entering the channels of the polycarbonate panels.

Plant Hangers - These clips come in packs of ten and attach easily to any Grandio greenhouse, allowing baskets or pots to be easily hung from the ceiling. Hanging baskets are a great way to maximize your growing space.

Shade Net - The Grandio 4.5' x 14' Greenhouse Shade Net is a great addition to your Grandio greenhouse, depending on your level of sun exposure. The aluminum cover reduces the sunlight by 50% to help keep your greenhouse a comfortable temperature during hotter times of the year, especially the summer months.

Grandio Summit Greenhouse Assembly Manuals

>>Download: Grandio Summit Base Kit Assembly Manual 1

>>Download: Summit Greenhouse Assembly Manual 2

>>Download: Summit Greenhouse Parts List Manual 3

Grandio Summit Greenhouse Anchoring Kit Manuals

Grandio Summit Wood Anchoring Kit Supplement Manual

Grandio Summit Concrete Anchoring Kit Supplement Manual

Note: In order to read the manuals, you need the Adobe Acrobat PDF reader.

ASSEMBLY

Looking for assembly instructions? Find them here.

This is your resource for finding complete assembly instructions for all Grandio Elite Greenhouses. You can download the instructions in PDF format or you can view the assembly video. We’ve provided everything you need to get started with your new Grandio greenhouse. Have questions? Call Us At 1-888-612-2069.

Grandio Greenhouse Assembly Video

Note: In order to read the manuals, you need the Adobe Acrobat PDF reader.

Grandio Base Assembly Video

Q&A

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 1-888-612-2069.

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 1-888-612-2069 to discuss options.

SHIPPING

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 and Canada. If you live in Canada and would like to place an order please call us at 1-888-612-2069.

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.

WHY CHOOSE A GRANDIO GREENHOUSE KIT?

Scroll down to view/compare the features of all our greenhouse models.

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 Greenhouse Kits are custom-made to meet the highest standards of the professional gardener and quality manufacturing to withstand extreme wind and weather conditions.

Superior quality

Made to meet the imposing standards of amateur and professional gardeners, the 1.6mm profile aluminum frame on all our greenhouse kits provides a stronger and more durable build than its competitors. And the heavy-duty construction coupled with 10mm or 6mm twin-wall polycarbonate panels is a perfect thickness for winter insulation.

Shipping	This item ships to
Delivery	Estimated between and .

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at doug@outdoorshedsforsale.com. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted. You can always contact us for any return question at doug@outdoorshedsforsale.com. Damages and issues Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right. Exceptions / non-returnable items Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item. Unfortunately, we cannot accept returns on sale items or gift cards. Exchanges The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item. European Union 14 day cooling off period Notwithstanding the above, if the merchandise is being shipped into the European Union, you have the right to cancel or return your order within 14 days, for any reason and without a justification. As above, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. Refunds We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too. If more than 15 business days have passed since we’ve approved your return, please contact us at doug@outdoorshedsforsale.com. RETURN AND REFUND POLICY Our return policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Warranty/Claims In the case of a warranty or claim request - please provide the following items to us via email - photos of the damage (up close and far back), your order #, a brief description of your issue - We will follow up with you within 24-48 hours after this information has been provided. Refunds (if applicable) Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund along with any appropriate restocking fee. Once your refund is processed, a credit will automatically be applied to your credit card or original method of payment immediately at that time - It will take 1-3 days to show back on your card - varying bank to bank. If your order is canceled while in transit or 1 business day before transit - a restocking fee will be applied. Late or missing refunds (if applicable) If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted. If you’ve done all of this and you still have not received your refund yet, please contact us at doug@outdoorshedsforsale.com.

Our goal is to consistently provide the best pricing in the marketplace online and we work very diligently to do so. If you happen to see another online shop that offers a lower price than us within six months of your date please let us know and we’ll be happy to refund the difference on your original payment method. Moreover, because we are consistently working with our suppliers to get better rates, we know that you can feel very comfortable and confident that you are seeing the best prices that can be provided for the products listed on our site. Moving forward, if you find the same item that we carry on another website that has a lower price please submit that to us within six months of your purchase date and we will refund you the difference. If it is a case of seeing a lower price on another website and we need to send a partial refund simply email us the link to the exact product and brand from our site and also the link from our competitors site so we can inspect the pricing. Again this needs to be within six months from the date of your order and we will review your submission and apply for credit if necessary. Our 100% Shoppers Best Price Guarantee has some limitations: The item must have already been purchased from our site prior to asking for this to be reviewed and submitted. This does not include rebate programs or specific retailer programs such as buy three get one free type offers or any combination such as that are not eligible. The item will need to be in stock from the competitors site that you are submitting the information from. The competitor must be an online store, they may not have a retail location (warehouse, showroom, or physical location). The price match only applies to checkouts directly on this site. The website cannot be a wholesaler, liquidator, distributor, or auction website. Examples are eBay, Liquadation.com, Via Trading, overstock, etc. The competitor must also be someone who has been authorized by the supplier and/or manufacturer to resell the product you are inquiring about. The Shoppers Best Price Policy must also include the product listing price and the shipping total, but will exclude any sales tax that gets added at the final purchasing invoice.

Shed Frequently Asked Questions Do you offer financing? At this time we do not have financing available. How do I order? You can get a free quote through our website for all of our structures, then speak with our expert staff to ensure you have every critic component. Who takes care of permits? If a permit is required, it is up to the customer to secure what is needed. Do I need permitting? We do not require a permit, however we always recommend checking with your local township, city, or county officials for up to date information. Can you get engineered drawings? Yes. All of our build-on-site garages have engineered drawings included, but we can get drawings for any of our structures for an additional cost. All drawings are non-refundable How much room do I need to get my shed in? For our storage sheds, you will need 2'-4' in addition to the width of the shed. For example, if you would like a 10' shed, you would need 12'-14' width clearance depending on the model. Do you accept credit cards? We accept all major credit cards Do you take personal checks? Yes, we will accept personal checks How much can I put on a credit card? We do not put a limit on how much you put on your credit card. We do suggest contacting your credit card company on large amounts. Gazebo Frequently Asked Questions How do you deliver your structures? All our gazebos, pergolas and pavilions come as a ready-to-assemble kit, which you can put together yourself or have a local contractor set it up for you. Can you Customize Sizes? Yes! Share a sketch or dimensions with your Design Consultant to find that perfect fit. What is the difference between a wood and vinyl structure? Vinyl is a great option if you are interested in a maintenance-free structure, and available in white, almond and clay colors. A variety of our products are available in pressure treated cedar. We offer several standard paints or stains for our wood structures. How do I prepare my foundation? We are happy to provide a post layout and required specifications for our structures. Who takes care of permits? If a permit is required, it is up to the customer to secure what is needed. Do I need permitting? We do not require a permit, however we always recommend checking with your local township, city, or county officials for up to date information. What is the warranty on the outdoor living structures? All of our gazebos, pergolas, and pavilions have a 10 year limited warranty. This warranty covers any manufacturing defects that are not caused by normal wear and tear. We also guarantee your wood will not rot or become termite infested and your vinyl will not crack or discolor and will remain structurally sound (when used and maintained properly). Why is my wood structure cracking? Those "cracks" are naturally caused by expansion and contraction of the wood, and it is called checking. Part of the rusting charm of wood structures is checking, but if that look isn't what is desired we suggest looking for a vinyl structure.

Description

Grandio Summit 12×12

by Grandio Greenhouses

SKU: SUMMIT-1212

Free Shipping

Description:

Premium Walk-In Greenhouse for Cold Climates, Windy Sites and Year-Round Growers. This barn-style greenhouse delivers professional-grade performance with a bold, functional design. Whether you're growing delicate ornamentals, seed-starting or cultivating crops all year long, the Grandio Summit 12x12 makes it possible—no matter the season. With rugged framing, commercial insulation and secure access, it's built to thrive in high-snow, high-wind and low-temp environments.

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

Optional Add ons:

6x Automatic Roof Window Opener (Included in Premium Kit) $474.00
Drip Irrigation Watering Kit (Included in Premium Kit) $49.00
Moisture Control Kit $159.00
Pack of 10 Plant Hangers $25.00
Shade Net $419.00
Backdoor Conversion Kit $600.00
2x Louver Window $240.00
4x Louver Window $480.00
2x Automatic Louver Window Opener $158.00
4x Automatic Louver Window Opener $316.00

Just a few Benefits that set the Grandio Greenhouse apart from the others:

1. Year-Round Growing in Any Climate:

Engineered specifically for harsh environments.
Features the highest insulation on the market (R-Value 1.89 / U-Value 0.53) thanks to 10mm twin-wall polycarbonate panels.
This optimal thickness provides exceptional winter insulation, protecting plants from cold and allowing productive gardening all year.

2. Unmatched Strength & Weatherproof Durability:

Built with a heavy-duty 1.6mm aluminum frame that's significantly stronger and more durable than competitor greenhouses using PVC.
Won't warp, melt, or crack like PVC alternatives.
Engineered to perform reliably season after season, even in demanding conditions.

3. Spacious, Elegant Design & Superior Functionality:

The beautiful barn-style shape is not just attractive but also highly functional, maximizing headroom and usable growing space.
Features well-ventilated design with gliding double doors that hang from above to eliminate jamming.
Includes durable nylon door wheels for smooth, long-lasting operation.

4. Premium Build Quality & Hassle-Free Experience:

Heavy-duty construction combines the robust aluminum frame with superior 10mm twin-wall panels for lasting performance.
Designed with an easy-to-assemble system.
Incorporates a wide range of features and accessories culminating in an exceptional gardening environment that meets the highest standards for both amateur and professional gardeners.

The Grandio Summit Greenhouse Kit is more than just a greenhouse; it's an environment every plant needs to grow strong & healthy all year long.

Premium Kit Includes:

10mm Twin-Wall Panels
(6) Roof Windows
Rain Gutters
Drain Kit
Extreme Snow Load Kit
Flat Mount Anchor Kit
(6) Auto Roof Window Openers
(1) Pack of 10 Plant Hangers
(1) 8 oz. Brillianize Cleaner
(1) Trellis Kit
(1) Drip Kit

Basic Kit Includes:

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

Actual Size: 12’ W x 12’ L x 9.25' H

SPECIFICATIONS

Technical details for those who need more.

Height: 9′ 3"
Width: 12′
Length: 12′
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: (6) roof vents with adjustable manual openers/latches.

Frame Warranty: Lifetime

Panel Warranty: 10 years

GRANDIO GREENHOUSE MATERIALS VS OTHER BRANDS

Choosing the right frame is one of the most critical decisions when selecting a greenhouse. The most common options include galvanized steel, wood, PVC, composite materials, and aluminum.

However, not all aluminum frames are equal.

Key considerations for aluminum frames:

By evaluating these factors, you can ensure your Grandio Greenhouse is a tough, sturdy, long-lasting greenhouse.

Automatic Louver Vent Opener - The metal cylinder in the opener responds to an increase in outside temperature by automatically and gradually opening the louver window. As the temperature cools, a spring closes the vent or window and resets the piston. Automatic openers are extremely convenient for maintaining the proper greenhouse temperature and preventing your plants from getting overheated on hot summer days. The automatic openers are designed for simple installation.

Automatic Roof Vent Opener - The metal cylinder in the opener responds to an increase in outside temperature by automatically and gradually opening the roof vent. As the temperature cools, a spring closes the vent or window and resets the piston. Automatic openers are extremely convenient for maintaining the proper greenhouse temperature and preventing your plants from getting overheated on hot summer days. The automatic openers from Grandio are designed for simple installation.

Drain Kit - The drain kit down spout installs directly into the frame and gutter of your Grandio greenhouse. It includes four 20mm black pipes, four gutter attachment gaskets, and four side wall brackets with screws.

Drip Irrigation Watering Kit - The drip kit helps to keep your plants hydrated with minimal water waste and is perfect for a wide variety of plants. This kit can cover up to 150 square feet and includes 20 drippers at 1 GPH (gallons per hour), 2 drippers at 2 GPH, and 2 drippers at 4 GPH. A backflow preventer is included to stop water from being siphoned back into the main water supply, and the kit is designed for easy do-it-yourself installation.

Frame To Base Brackets - The frame to base brackets provide extra support to the inner walls of your greenhouse from windy conditions and severe weather by firmly locking the frame of the greenhouse to the base. Each pack of four includes 4 EZ1 wall to base brackets, 4 EZ2 inner base brackets, and 16 S02/ML01 bolt and nut combos. The link below in the manuals section shows the recommended number and layout of frame to base brackets for this greenhouse.

Louver Window - The elegant louver windows add additional ventilation to the sides of your greenhouse. Each window has 6mm polycarbonate panels and can be paired with an optional automatic louver window opener for hassle-free operation on hot days when opening windows and vents is important.

Moisture Control Kit - The moisture contol kit includes multiple units of waterproof all weather silicone caulk and a specialized anti-dust tape to completely seal your greenhouse. The anti-dust tape has a fungicidal coating and 45 micron filters that allow condensation to escape the flutes of the polycarbonate panels. The kit provides waterproofing and will help prevent dirt, mold, algae, and insects from entering the channels of the polycarbonate panels.

Plant Hangers - These clips come in packs of ten and attach easily to any Grandio greenhouse, allowing baskets or pots to be easily hung from the ceiling. Hanging baskets are a great way to maximize your growing space.

Shade Net - The Grandio 4.5' x 14' Greenhouse Shade Net is a great addition to your Grandio greenhouse, depending on your level of sun exposure. The aluminum cover reduces the sunlight by 50% to help keep your greenhouse a comfortable temperature during hotter times of the year, especially the summer months.

Grandio Summit Greenhouse Assembly Manuals

>>Download: Grandio Summit Base Kit Assembly Manual 1

>>Download: Summit Greenhouse Assembly Manual 2

>>Download: Summit Greenhouse Parts List Manual 3

Grandio Summit Greenhouse Anchoring Kit Manuals

Grandio Summit Wood Anchoring Kit Supplement Manual

Grandio Summit Concrete Anchoring Kit Supplement Manual

Note: In order to read the manuals, you need the Adobe Acrobat PDF reader.

ASSEMBLY

Looking for assembly instructions? Find them here.

This is your resource for finding complete assembly instructions for all Grandio Elite Greenhouses. You can download the instructions in PDF format or you can view the assembly video. We’ve provided everything you need to get started with your new Grandio greenhouse. Have questions? Call Us At 1-888-612-2069.

Grandio Greenhouse Assembly Video

Note: In order to read the manuals, you need the Adobe Acrobat PDF reader.

Grandio Base Assembly Video

Q&A

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 1-888-612-2069.

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 1-888-612-2069 to discuss options.

SHIPPING

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 and Canada. If you live in Canada and would like to place an order please call us at 1-888-612-2069.

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.

WHY CHOOSE A GRANDIO GREENHOUSE KIT?

Scroll down to view/compare the features of all our greenhouse models.

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 Greenhouse Kits are custom-made to meet the highest standards of the professional gardener and quality manufacturing to withstand extreme wind and weather conditions.

Superior quality

Made to meet the imposing standards of amateur and professional gardeners, the 1.6mm profile aluminum frame on all our greenhouse kits provides a stronger and more durable build than its competitors. And the heavy-duty construction coupled with 10mm or 6mm twin-wall polycarbonate panels is a perfect thickness for winter insulation.

Shipping

Shipping	This item ships to
Delivery	Estimated between and .

Delivery & Returns

100% Best Price Policy

FAQ's