Black Friday: 5% OFF on select brands with code BLACKFRIDAY5 + Free Shipping* on select items. Price Match Guarantee on all products. Some exclusions apply.
Black Friday: 5% OFF on select brands with code BLACKFRIDAY5 + Free Shipping* on select items. Price Match Guarantee on all products. Some exclusions apply.
At OffGrid Lux, we're committed to offering you the best prices online. That's why we have a Price Match Guarantee in place. If you find a lower price for the same product elsewhere, we'll match or beat it to ensure you get the best value.
For full details on our Price Match Guarantee, including eligibility criteria and how to request a price match, please click here to view our complete policy.
Shipping & Order Policy at OffGrid Lux
When you place an order, we confirm stock availability before charging your card. Orders typically process within 1-2 business days, and shipping is fast—most orders arrive within 4-7 days. We use reliable third-party carriers and provide tracking information promptly.
For more details, click here to view our full Shipping Policy.
Refunds & Returns at OffGrid Lux
We're committed to your happiness with every purchase. Need assistance? Just reach out. You have 30 days from delivery to return items in their original condition. We process refunds promptly, usually within 3 business days of receiving your return.
For more info, check out our full Returns & Refunds Policy here.
Why Pick the Summit 12x12 Greenhouse Kit for Your Garden?
Actual size: 12' W × 12' L × 9.25' HSizes: 12x8, 12x12, 12x16, 12x20, 12x24, 12x28, 12x32Panels: 10mm twin-wall polycarbonate (R≈1.89, U≈0.53)Frame: Heavy Duty AluminumVentilation: (6) roof vents + rain guttersRatings: wind up to 76 mph; snow up to 25 lb/ft²*
The Grandio Summit 12x12 Greenhouse Kit is a premium choice for growers who want durability, climate control and abundant space for year round gardening. With its barn style structure, reinforced aluminum frame and high performance 10mm twin wall polycarbonate panels, this greenhouse creates a stable environment that supports healthy plant growth in all seasons. Designed for both hobbyists and advanced gardeners, the Summit 12x12 combines strength, insulation and thoughtful features to make every growing project easier.
Its tall profile and wide interior layout offer plenty of room for vertical and horizontal planting, making it ideal for seedlings, vegetables, flowers and specialty crops.
Why Choose the Summit 12x12 Greenhouse Kit?
Built for Harsh Weather
The 1.6 mm powder coated aluminum frame and 10 mm twin wall polycarbonate panels deliver dependable strength and insulation. With an R value of 1.89 and U value of 0.53, the panels help maintain steady temperatures, allowing your plants to thrive through winter cold and seasonal changes.
Ventilation and Smooth Entry
Six roof vents promote fresh air circulation, helping regulate heat and humidity for healthier plants. The bind resistant sliding double doors feature top hanging construction and durable nylon wheels for smooth operation, preventing jams and ensuring easy daily access.
Engineered for Long Term Stability
This greenhouse includes a rain gutter system, drain kit, extreme snow load kit and flat mount anchor kit for added security in demanding climates. Magnetic latch doors with a key lock add convenience and peace of mind, while stainless steel hardware ensures lasting durability.
BENEFITS
Strong and Weather-Ready: The Summit 12x12 features a heavy-duty 1.6mm aluminum frame and 10mm twin-wall polycarbonate panels, designed to withstand tough weather and keep your plants comfortable. The UV-protected 10mm paneling has an (R) value of 1.89* and a heat loss (U) value of 0.53, this helps keep temperatures stable, giving you a safe place to grow plants all year.
Great Airflow and Easy Access: With six roof windows and easy-glide double doors, this greenhouse provides plenty of airflow, essential for healthy plant growth. The doors hung from above to avoid sticking and are made from tough materials, so they slide open and shut smoothly.
Added Convenience and Stability: Equipped with rain gutters, a drain kit, an extreme snow load kit, and a flat mount anchor kit, the Summit 12x12 is ready for any conditions. The door wheels are made from tough nylon, and the lockable handles provide security. These added features help make the greenhouse practical, stable, and durable, ensuring it lasts season after season.
The Summit 12x12 Greenhouse Kit gives you a dependable, attractive space to grow your plants all year, making it a great choice for every gardener.
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
6 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 12' 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
(6) Roof Windows
Rain Gutters
Drain Kit
Extreme Snow Load Kit
Flat Mount Anchor Kit
Optional Premium Kit Includes:
10mm Twin-Wall Panels
(6) Roof Window
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
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
6 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.
FAQ
Is the Grandio Summit 12x12 Greenhouse strong enough for heavy snow and wind?
Yes, the Grandio Summit 12x12 is engineered for tough weather. It includes an Extreme Snow Load Kit and can handle up to 25 lbs./ft² of snow. It’s also wind-rated to withstand up to 76 mph*, making it ideal for high-wind areas like the Midwest or the Rockies.
Does this greenhouse work for all-season growing?
Absolutely. The 10mm twin-wall polycarbonate panels provide insulation with an R-value of 1.89 and a U-value of 0.53, helping maintain steady temperatures year-round. This is especially useful for year-round gardening in regions like the Pacific Northwest or the Northeast.
What’s included with the standard Summit 12x12 greenhouse kit?
The standard kit comes with 10mm twin-wall panels, six roof vents, sliding double doors, rain gutters, a drain kit, a snow load kit, and a flat mount anchor kit—everything you need to start growing in most climates.
Is the frame rust-proof?
Yes. The frame is made of powder-coated heavy-duty aluminum (1.6mm thick), which resists rust and corrosion, even in humid climates like Florida or coastal California.
How is ventilation handled inside the Summit greenhouse?
The Summit 12x12 includes six manually adjustable roof vents to allow heat and humidity to escape. Optional automatic vent openers and louver windows are available for even better airflow management in warmer zones like the South or Southwest.
Does this model come with a warranty?
Yes, Grandio provides a lifetime warranty on the aluminum frame and a 10-year warranty on the polycarbonate panels, giving long-term peace of mind regardless of location.
Free Shipping & No Tax to the United States
Enjoy Free Shipping on Orders Over $200. No Sales Tax (Excludes WY).
I bought this battery to replace my battery that died in my Ecotric 20810 (the fat tire one from around 2019 timeframe). Went on a 2+ hour ride and still had plenty of juice to spare. Wish it was cheaper but....it's a big battery and that's the retail price I guess.
Ordered four inverters for a customer whose solar system was damaged by a utility surge. OffGridLux advertised these inverters at $2500. Upon ordering the inverters I was assured they were in stock and would be delivered. The next day I received a refund and the price of the inverters went up from $2500 to $3100 on the OffGridLux website. Chris in customer service explained the inverters were a new product and the $2500 price was added by mistake and the real price was $3100. He also told me his warehouse made a mistake they only had 2 of the 4 available. After expressing my frustration at the situation since the customer was already quoted the lower price, Chris worked out a deal and gave us the inverters at cost to OffGridLux for $2850 instead of $3100. Chris promptly adjusted the charge and made sure the 2 inverters were shipped out asap. As a small business owner I understand how small mistakes can be costly and sometimes the little things are the biggest problem. In good fashion Chris represented OffGridLux and my interests by communicating and figuring out an amicable solution for all parties involved. Thank you again Chris. You sir a true asset to your company.
Nice bike love the looks not as powerful as my pro 2 as one might expect but overall nice bike i did take it on a 47 mile trip and still had 50.1 percent left when i got home so no need to worry about a battery the best part of this bike is the company that sold it. I've been so impressed with this company which is why i purchased my 2nd bike from them they are nothing short of exceptional buy with confidence they are with your every step of the way and very fast to respond to emails and help with any problem ive come across i wish they sold other bikes just so i could buy from them off the grid lux is by far my favorite store keep it up guys I'll keep looking to see what you stock next
This place is one of the best companies I've ever purchased from they have excellent customer service fast shipping and answer all your questions in a timely manner i love my bike i had a small problem which they quickly addressed i have been extremely impressed with how helpful they have been i highly recommend this company I promise you won't regret it
First id like to say that their customer service is 2nd to none. I was informed about everything that was going on with my new bike they are very fast to respond to messages and shipping is extremely fast buy with confidence you won't regret it
I purchased the Mirage Vision 55 Gold Ultra HD (4K) Series HDTV two weeks ago and have enjoyed watching football and other sporting events on my patio. The TV's weatherization modifications are very professionally installed. I feel like I received a well engineered product and one that will hold up to the weather elements here in central Texas. The picture quality is outstanding. The video/audio source for my Mirage Vision HDTV is a HDMI cable that runs to a cable box in a closet in the house. I'm using a HDMI IR extender to control the cable box in the house and it all works great. The WIFI capability of the HDTV works well too as my daughter enjoys watching Netflix. Nice product!"
The bike is excellent! My range anxiety is no more! 18 miles and only lost 8 percent compared to my last e-bike that is a huge win! I bought this to use as a commuter and man it's been more then enough! Crossing the road and reaching the max speed of 44mph despite being a little under 250! This is my best purchase for the year cant wait for more relaxing extended bike trips!
Shipping was fast, setup was easy and they even followed up after delivery which I totally didn’t expect! Pretty solid experience overall ,would buy again.
I was a little hesitant before buying, but after riding it for a few weeks, I can confidently say it was the right choice. The bike is fast, smooth, and super fun to ride. It handles hills effortlessly, and the battery lasts way longer than I expected.
Shipping was quick, and it was easy to set up. Customer service was also great they answered my questions fast and made sure everything was good.
The equipment arrived packaged very well and in great shape. Quick shipping and tracking information. The freeze dryer and industrial pump has worked wonderfully. Many batches of candy. Batches of chicken, spaghetti sauce, minestrone soup and tons on apple slices, wedges and apple sauce. Enjoying the machine while preparing for the future.
I was super scared to buy it at first because it took a little over a year to save for it, I received it in just about a months time and it’s been running almost non stop since it arrived! I had to get extra trays to prefreeze my next load because im always thinking of something else to go in lol. No issues so far, super happy with it :) Thanks Stayfresh!
Awesome bike. Was delivered on time. Bike was in good condition, no dings or dents. This website had the best price available.
MEELOD DK300 PRO 20" Retro Moped Style Electric Bike 1200W Peak Motor 48V 15Ah Dual Batteries
Tony DeMarco
Top Notch
The MirageVision 55 inch Gold Outdoor TV is just the perfect addition to our outdoor oasis. The product is top notch and the ordering process, shipping and installation was perfect. The staff was very helpful and friendly. Will refer a friend any time. Thank you!
MirageVision Partial Sun Outdoor TV – 1500 Nits, Mini-LED Pro – Gold Series
Adam D.
I have literally quadrupled the amount of time I spend on my roof top deck now that I have a MirageVision 55 television mounted on the wall. My home is now the go-to for friends and family to gather when watching sports and it's all centered around my new television. Thanks for delivering such a high quality product!
MirageVision Outdoor Shade TV – ULED, Mini-LED, Google TV – Silver Series
Joe - Chicago
Loving It!
We're loving tv !!!!
MirageVision Direct Sun Outdoor TV Neo QLED, 2500 Nits
Timothy C.
Very professionally installed
I purchased the Mirage Vision 55 Gold Ultra HD (4K) Series HDTV two weeks ago and have enjoyed watching football and other sporting events on my patio. The TV's weatherization modifications are very professionally installed. I feel like I received a well engineered product and one that will hold up to the weather elements here in central Texas. The picture quality is outstanding. The video/audio source for my Mirage Vision HDTV is a HDMI cable that runs to a cable box in a closet in the house. I'm using a HDMI IR extender to control the cable box in the house and it all works great. The WIFI capability of the HDTV works well too as my daughter enjoys watching Netflix. Nice product!"
MirageVision Partial Sun Outdoor TV – 1500 Nits, Mini-LED Pro – Gold Series
I bought this battery to replace my battery that died in my Ecotric 20810 (the fat tire one from around 2019 timeframe). Went on a 2+ hour ride and still had plenty of juice to spare. Wish it was cheaper but....it's a big battery and that's the retail price I guess.
Nice bike love the looks not as powerful as my pro 2 as one might expect but overall nice bike i did take it on a 47 mile trip and still had 50.1 percent left when i got home so no need to worry about a battery the best part of this bike is the company that sold it. I've been so impressed with this company which is why i purchased my 2nd bike from them they are nothing short of exceptional buy with confidence they are with your every step of the way and very fast to respond to emails and help with any problem ive come across i wish they sold other bikes just so i could buy from them off the grid lux is by far my favorite store keep it up guys I'll keep looking to see what you stock next
First id like to say that their customer service is 2nd to none. I was informed about everything that was going on with my new bike they are very fast to respond to messages and shipping is extremely fast buy with confidence you won't regret it
The MirageVision 55 inch Gold Outdoor TV is just the perfect addition to our outdoor oasis. The product is top notch and the ordering process, shipping and installation was perfect. The staff was very helpful and friendly. Will refer a friend any time. Thank you!
