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Transform Your Garden Dreams Into Reality
Professional-grade aluminum greenhouses designed for year-round growing. Excellent customer service with 12 years of experience.
Welcome to Grandio Greenhouses – Your Trusted Source for Aluminum Greenhouse Kits
Since 2012, Grandio has been America’s premier manufacturer of professional-grade aluminum greenhouse kits. Our heavy-duty greenhouse kits combine commercial-quality construction with hobby-friendly pricing, featuring rust-resistant aluminum frames, insulated 10mm twin-wall polycarbonate panels, and industry-leading lifetime warranties.
From compact 6×4 models to spacious 12×32 professional greenhouse kits, every Grandio aluminum greenhouse is engineered for decades of reliable performance in all climates. Our barn-style greenhouse kits are trusted by hobby gardeners, master gardeners, homesteaders, and commercial growers across the United States.
Whether you’re growing vegetables year-round, cultivating orchids, starting seeds, or running a small commercial operation, Grandio aluminum greenhouse kits provide the quality and features you need for growing success. All greenhouse kits ship fast from our Idaho warehouse with free shipping nationwide.
Shop Aluminum Greenhouse Kits by Collection
Grandio Element Aluminum Greenhouse Kits
Perfect for beginners & small spaces
- ✓10mm twin-wall polycarbonate
- ✓Compact sizes 6×4 to 6×12
- ✓Heavy-duty aluminum frame
- ✓Budget-friendly option
From $1,199
From $999
Grandio Ascent Aluminum Greenhouse Kits
Step up in size and features
- ✓6mm twin-wall panels
- ✓Sizes 8×8 to 8×24
- ✓7’9″ headroom
- ✓Enhanced ventilation
From $2,199
From $1,999
Grandio Elite Aluminum Greenhouse Kits
Premium choice for serious gardeners
- ✓10mm twin-wall panels
- ✓Sizes 8×8 to 8×24
- ✓Superior insulation
- ✓Heavy-duty frame
From $2,699
From $2,399
Grandio Summit Aluminum Greenhouse Kits
Ultimate greenhouse experience
- ✓10mm twin-wall panels
- ✓Sizes 12×8 to 12×32
- ✓9.25′ peak height
- ✓Lockable doors
From $3,999
From $3,499
Why Choose Grandio Aluminum Greenhouse Kits?
Heavy-Duty Aluminum Construction
Unlike flimsy plastic or PVC greenhouse kits, our aluminum greenhouse frames are built to last a lifetime. The 1.6mm powder-coated aluminum won’t rust, warp, or deteriorate.
Superior Year-Round Insulation
Every aluminum greenhouse kit features 10mm twin-wall polycarbonate panels with exceptional R-values. Grow fresh vegetables through winter in harsh climates.
Lifetime Frame Warranty
We stand behind our aluminum greenhouse kits with a lifetime frame warranty and 10-year panel warranty – the best protection in the industry.
Professional Quality, Hobby Prices
Get commercial-grade aluminum greenhouse construction without the commercial price tag. Exceptional value for serious gardeners and homesteaders.
Free Shipping Nationwide
All aluminum greenhouse kits ship free from our Idaho warehouse to anywhere in the continental United States. Fast delivery, secure packaging.
Family-Owned USA Company
Grandio Greenhouses is a family-owned company based in Boise, Idaho. We’ve been helping gardeners succeed since 2012 with expert support you can trust.
Perfect Aluminum Greenhouse Kits For:
Year-Round Vegetable Growing
Extend your season and grow fresh produce through winter with insulated aluminum greenhouse kits.
Hobby Farms & Homesteading
Increase food production and self-sufficiency with professional-grade aluminum greenhouse kits.
Orchid & Tropical Collections
Maintain perfect humidity and temperature control in heavy-duty aluminum greenhouses.
Commercial Growing Operations
Market gardens, plant nurseries, and cut flower production in durable aluminum greenhouse kits.
Explore our complete selection of aluminum greenhouse kits
Frequently Asked Questions About Aluminum Greenhouse Kits
Why choose aluminum greenhouse kits over plastic or wood?
Aluminum greenhouse kits offer superior durability and longevity compared to plastic or wood alternatives. Aluminum won’t rust like steel, rot like wood, or degrade like PVC. Our powder-coated aluminum frames are guaranteed for life and maintain structural integrity in all weather conditions. According to Oregon State University Extension, quality frame construction is essential for greenhouse longevity.
What size aluminum greenhouse kit should I buy?
Choose based on your space and growing goals. Compact 6×4 to 6×8 aluminum greenhouse kits work well for small yards and hobby growing. Mid-size 8×8 to 8×12 greenhouse kits suit serious gardeners and homesteaders. Large 12×8 to 12×24 aluminum greenhouse kits are ideal for commercial operations or extensive year-round growing. View our complete greenhouse kit collection to compare all sizes.
Can aluminum greenhouse kits withstand snow and wind?
Yes, Grandio aluminum greenhouse kits are engineered for extreme weather conditions. Our heavy-duty 1.6mm aluminum frames, barn-style designs, and included snow load kits handle significant snow loads. When properly anchored, these greenhouse kits withstand high winds. Customers in Montana, Minnesota, Wisconsin, and Canada use Grandio aluminum greenhouses year-round successfully.
What’s included in Grandio aluminum greenhouse kits?
Every aluminum greenhouse kit includes: powder-coated aluminum frame, twin-wall polycarbonate panels, sliding doors, roof vents, rain gutters, anchor hardware, and comprehensive installation instructions. Most models include snow load reinforcement kits. Lifetime frame warranty and 10-year panel warranty included. Optional accessories like automatic vent openers, plant hangers, and irrigation kits available.
Ready to Start Growing Year-Round?
Join thousands of satisfied gardeners growing with Grandio aluminum greenhouse kits. Professional quality, lifetime warranty, free shipping nationwide.
How to Choose the Right Greenhouse Size
Choosing the right greenhouse size is one of the most important decisions you’ll make as a gardener. Too small, and you’ll quickly run out of space for your growing collection. Too large, and you’ll spend more on heating and maintenance than necessary.
Our free greenhouse size calculator takes the guesswork out of sizing by considering your specific needs: family size, growing goals, plant quantities, and space requirements for work areas and storage. In just 2 minutes, you’ll get a personalized recommendation for the perfect Grandio greenhouse model.
Looking to learn something new?
Checkout our selection of gardening articles, our team is working hard to add new content to our resources.
See all articles- 10 Creative Alternative Uses for a Greenhouse10 Creative Alternative Uses for a Greenhouse | Grandio Greenhouses 10 Creative Alternative Uses for a Greenhouse November 10, 2025 8 min read By Grandio Team Your greenhouse doesn’t have to be just for plants. Discover innovative ways to transform this versatile structure into an art studio, meditation retreat, workshop, dining space, and more. Maximize… Read more: 10 Creative Alternative Uses for a Greenhouse
- What Is Frost and How Does It Damage Plants?What Is Frost and How Does It Damage Plants? | Grandio Greenhouses What Is Frost and How Does It Damage Plants? October 2, 2025 7 min read By Grandio Team Discover what frost is, how it forms, and the devastating ways it can damage your garden. Learn science-backed protection strategies to safeguard your plants from… Read more: What Is Frost and How Does It Damage Plants?
- Weathering Extreme Weather With Your GreenhouseWeathering extreme weather with your greenhouse, how to protect your greenhouse in extreme weather, and how to minimize damage or loss.
- The Best Tomatoes to Grow in a GreenhouseDid you know there are over 10,000 tomato varieties? Finding the perfect variety of tomatoes to grow in a greenhouse can be challenging.
- Temperature and Humidity in Your GreenhouseTemperature and Humidity control is crucial for creating an optimal plant-growing environment in a greenhouse. You can use several methods to accomplish your desired environment.
Ready to Start Growing?
Get your free consultation today. Our experts are ready to help you find the perfect greenhouse for your needs.
Call Now: (866)448-8231
info@grandiogreenhouses.com
88 N Touchmark Way Ste 150, Meridian, ID
Mon-Fri: 8:30AM-5:00PM MST