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Best Greenhouses 2026: 10 Best Greenhouses for Sale in Canada and the USA

Best Greenhouses 2026: 10 Best Greenhouses for Sale in Canada and the USA

Are you thinking about upgrading your garden with a greenhouse this year, but are unsure which one performs best in your climate? Whether you’re exploring greenhouses for sale in Canada or comparing greenhouses for sale in the USA, the 2026 greenhouse market offers options for every type of grower. This guide highlights the top-performing models that gardeners trust for durability, value, and dependable year-round growing.

Best Backyard Greenhouses 2026 for Canadian and US Gardeners

Below are ten of the best greenhouse kits 2026, selected for their durability, insulation, and performance in both Canadian and US climates.

1

Sungrow 20

By Planta Greenhouses

Sungrow 20
Our Rating: 8.84/10
Price: From $3,750 USD
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If you need a greenhouse that can handle severe wind and snow, the Planta Greenhouses Sungrow 20 deserves a close look. It consistently ranks among the best backyard greenhouses for colder regions thanks to its heavy-duty frame and excellent insulation. This arched structure features a heavy-gauge galvanized steel frame and 6 mm double-wall polycarbonate panels, providing the strength to withstand up to 6 feet of snow and winds up to 65 mph.

Product Details

Price:
From $3,750 USD
Wind Resistance:
Up to 65 mph
Reviews:
119
Materials:
Heavy-duty galvanized steel frame, 6 mm double-wall polycarbonate panels
Snow Load:
Up to 6 ft of light snow (75 psf)
Warranty:
10

The curved profile sheds snow and rain naturally, while dual doors and manual end-wall windows create smooth cross-ventilation. Its modular design also allows expansion beyond 100 feet as needs evolve.

Why it stands out:

  • Durability: The galvanized frame will not rust, making it ideal for harsh climates. Double-wall polycarbonate panels insulate better than single-layer panels and protect plants from strong sunlight.
  • All‑season performance: With proper anchoring and insulation, you can grow through harsh winters.
  • Expandable: The modular design lets you add extension kits as your garden expands.
  • Warranty: A 10-year warranty underscores its long-term reliability. Planta Greenhouses also has a private community of 5,000+ greenhouse owners who share installation tips and growing advice.
2

Summit 12×8 Greenhouse

By Grandio

Summit 12×8 Greenhouse
Our Rating: 7.16/10
Price: From From $3,499 USD
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Cold-climate gardeners love Grandio’s Summit series because it marries spacious interiors with thick insulation. The Grandio Summit 12×8 Greenhouse uses a powder‑coated aluminum frame and 10 mm twin‑wall polycarbonate panels to create a warm, bright environment. Reinforced trusses and stainless‑steel hardware contribute to high snow and wind ratings. Four roof vents and sliding double doors promote airflow and help control temperature.

Product Details

Price:
From From $3,499 USD
Wind Resistance:
Not specified
Reviews:
2
Materials:
Heavy-duty aluminum frame, 10 mm twin-wall polycarbonate panels
Snow Load:
Extreme snow load kit available
Warranty:
Lifetime frame warranty; 10-year panel warranty

Why it stands out:

  • Heavy insulation: The 10 mm panels retain more heat than thinner glazing, making this model suitable for northern climates or high elevations.
  • Sturdy design: Reinforced roof trusses give peace of mind during winter storms.
  • Generous space: At 12 feet wide, there’s ample room for raised beds, benches, and tall plants.
3

Sunhaven 8×8

By BC Greenhouses

Sunhaven 8×8
Our Rating: 6.78/10
Price: From $4,495 USD

If you’re looking for an entry-level greenhouse that still delivers dependable durability, the Sunhaven Traditional 8×8 from BC Greenhouses is a solid contender. Designed for backyard gardeners, this model features a sturdy aluminum frame paired with 6 mm twin-wall polycarbonate glazing for balanced insulation and light diffusion.

Product Details

Price:
From $4,495 USD
Wind Resistance:
Up to 85 mph
Reviews:
3
Materials:
6 mm twin-wall polycarbonate panels (80% light diffusion)
Snow Load:
32 psf
Warranty:
Lifetime frame warranty; 10-year panel warranty

It is rated for 32 psf of snow (with optional upgrades up to 120 psf) and wind speeds of up to 85 mph, offering impressive strength for its size. Two solar-powered roof vents and a keyed, lockable screen door help maintain consistent airflow and add security.

Why it stands out:

  • Budget-friendly durability: The all-aluminum frame and twin-wall polycarbonate panels resist rust, diffuse sunlight, and provide insulation.
  • Three-season performance: Weather stripping helps stabilize interior temperatures, while the solar-powered roof vents automatically improve air circulation, making it suitable for growing from early spring through late fall.
  • Straightforward installation: The kit arrives pre-cut and pre-drilled, and it doesn’t require a concrete foundation. Most gardeners can assemble it over a weekend using basic tools.
  • Warranty and support: BC Greenhouses backs the Sunhaven with a lifetime frame warranty and a 10-year glazing warranty, along with access to the company’s Green Thumb Club for ongoing support and discounts.
4

8mm Twin-Wall Greenhouse

By Monticello

8mm Twin-Wall Greenhouse
Our Rating: 6.76/10
Price: From $3,449 USD

If you’re looking for a mid-priced greenhouse that rivals commercial quality, the Monticello 8mm Twin-Wall Greenhouse from Riverstone Industries is a strong option. Made in the USA, it features an extruded U.S.-grade aluminum frame paired with 8 mm twin-wall polycarbonate glazing. The exact thickness is commonly used in commercial structures. The frame is engineered with about 55 lbs more aluminum than most imported hobby greenhouses, giving it the strength to withstand higher winds and snow loads.

Product Details

Price:
From $3,449 USD
Wind Resistance:
Not specified
Reviews:
61
Materials:
Extruded aluminum frame, 8 mm twin-wall polycarbonate
Snow Load:
Not specified
Warranty:
10-Year Warranty

Why it stands out:

  • Commercial-grade durability: The heavy extruded aluminum frame offers stability in challenging weather, and the 8 mm twin-wall polycarbonate panels add insulation and impact resistance.
  • All-season performance: Features like the integrated gutter system, taller frame height, and hinged double doors improve ventilation, moisture control, and interior comfort year-round.
  • Built in America: Designed and manufactured in the USA using high-quality materials for long-term reliability.
  • Designed for serious gardeners: Assembly typically requires two people and a whole weekend, but the result is a long-lasting greenhouse built for consistent, productive growing seasons.
5

Walk‑In Polycarbonate Greenhouse

By Veikous

Walk‑In Polycarbonate Greenhouse
Our Rating: 6.55/10
Price: From $899 USD

If you’re looking for a budget‑friendly backyard greenhouse, the Veikous Walk‑In Polycarbonate Greenhouse offers a good balance of price and performance. This 8 ft by 16 ft kit is ideal for a greenhouse for small gardens, using ribbed polycarbonate panels that diffuse light, block UV rays, and insulate the interior. An adjustable roof vent allows you to manage airflow and temperature, and the aluminum frame is sturdy yet lightweight. Its simple assembly also makes it an excellent choice for gardeners searching for DIY greenhouse kits that can be set up over a weekend.

Product Details

Price:
From $899 USD
Wind Resistance:
No exact figure provided
Reviews:
94
Materials:
Aluminum frame, thicker polycarbonate panels
Snow Load:
No exact figure provided
Warranty:
No exact figure provided

Why it stands out:

  • Affordability: Compared with heavy‑duty models, Veikous kits are typically priced in the mid‑hundreds of dollars, making them accessible for beginners or those on a budget.
  • Multiple sizes: The line comes in various footprints, so you can pick the one that fits your small backyard or patio.
  • Easy assembly: The panels slide into channels, and most gardeners can build it in a day or two. However, anchoring is essential; the manufacturer recommends sealing panels and securing the base to prevent wind damage.
6

Canopia Glory 8 × 12

By Palram

Canopia Glory 8 × 12
Our Rating: 5.9/10
Price: From $4,349 USD
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Palram’s Canopia Glory series is a premium choice for gardeners who need an insulated, four‑season structure. The 8 × 12 model uses 10 mm twin‑wall polycarbonate panels that diffuse light, resist hail damage, and provide high insulation. A heavy‑duty aluminum frame and integrated base add stability. The greenhouse also includes a ventilation kit (roof vent and side louver) plus built-in rain gutters for water collection.

Product Details

Price:
From $4,349 USD
Wind Resistance:
Not specified
Reviews:
30
Materials:
Heavy-duty aluminum frame, 10 mm twin-wall polycarbonate
Snow Load:
Not specified
Warranty:
Not specified

Why it stands out:

  • All‑weather panels: 10 mm polycarbonate provides better insulation and is more durable than thin panels.
  • Built‑in gutters: Collect rainwater for irrigation and direct it away from the structure.
  • Heavy‑duty frame: Powder‑coated aluminum resists rust and supports the tall roof.
  • Adjustable ventilation: Roof vent and louvered side vent help control temperature.
7

2S Greenhouse

By Riga

2S Greenhouse
Our Rating: 5.77/10
Price: From $4,115 USD
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Ready to invest in a premium greenhouse kit? The Riga 2S is a great choice. Manufactured in Germany, Riga greenhouses are built for year‑round use and extreme durability. The 2S model features a heavy‑gauge aluminum frame and UV‑coated double‑wall polycarbonate panels, plus two full‑length shelves and a Dutch‑style door. An automatic roof vent opens at around 73 °F for hands‑off temperature control, and rubber gaskets seal doors and windows to retain humidity.

Product Details

Price:
From $4,115 USD
Wind Resistance:
Not specified
Reviews:
Not specified
Materials:
Alloy steel frame, 8 mm twin-wall polycarbonate (sides), 10 mm polycarbonate (front/rear)
Snow Load:
Not specified
Warranty:
10 years (panels), 15 years (frame)

Why it stands out:

  • Professional quality: Riga kits are known for their strength and insulation, with gabled ends that shed snow and resist high wind.
  • Integrated shelving: Having shelves saves on accessories and helps you organize your growing space.
  • Automatic ventilation: Built‑in thermostatic vents open and close without electricity, preventing overheating during sunny days.
8

15-Foot Growing Dome Greenhouse

By Growing Spaces

15-Foot Growing Dome Greenhouse
Our Rating: 5.3/10
Price: From $11,950 USD

If you want a greenhouse capable of year-round productivity in almost any climate, the 15-Foot Growing Dome from Growing Spaces is an impressive option. This compact geodesic greenhouse (about 175 sq ft with a peak height of 9 ft 5 in) creates a stable, sustainable growing environment for vegetables, herbs, and fruit year-round. Its geodesic framework and multi-wall polycarbonate cladding provide exceptional strength, with standard ratings of 75 psf snow load and wind resistance up to 115 mph. As the smallest dome in the Growing Spaces lineup, it’s ideal for hobby gardeners or small families who want high output from a modest footprint.

Product Details

Price:
From $11,950 USD
Wind Resistance:
No exact figure provided
Reviews:
Not specified
Materials:
16 mm multi-wall polycarbonate
Snow Load:
No exact figure provided
Warranty:
No exact figure provided

Why it stands out:

  • Engineered for harsh climates: The geodesic design distributes structural load evenly, enabling the dome to withstand heavy snow and high winds.
  • Four-season growing system: Every 15-foot dome includes solar-powered fans, automated vents, Reflectix insulation on the north wall, and an above-ground water pond that acts as thermal mass.
  • Complete modular kit: Each dome ships with pre-cut, color-coded struts, all required hardware, a snowshed entryway, a foundation wall, and drip-edge flashing.
  • Long-term durability: The structure is backed by a 5-year warranty against structural failure and a 10-year pro-rated warranty on the polycarbonate glazing.
9

Greenhouses

By Yoderbilt

Greenhouses
Our Rating: 4.77/10
Price: From $5,995 USD

If you want a greenhouse that arrives fully built, extremely durable, and ready for immediate use, Yoderbilt Greenhouses is a strong contender. Hand-crafted in the USA, each greenhouse is delivered fully assembled and constructed with pressure-treated wood framing and 8 mm twin-wall polycarbonate glazing. The result is a structure that provides excellent insulation, UV protection, and long-term reliability without the challenges of DIY assembly.

Product Details

Price:
From $5,995 USD
Wind Resistance:
Moderate (not specified)
Reviews:
Not specified
Materials:
Pressure-treated wood frame, polycarbonate panels
Snow Load:
Moderate (not specified)
Warranty:
Not specified

Why it stands out:

  • Built to last: The pressure-treated wood frame resists rot, warping, and moisture damage, while the 8 mm polycarbonate glazing offers insulation, impact resistance, and strong light diffusion.
  • Ready to grow from day one: Each greenhouse is delivered fully assembled, eliminating the need for tools, complicated instructions, or multi-day construction. Place it on a level pad or gravel base and start planting immediately.
    Flexible sizing and configurations: With options like shelving, benches, electrical upgrades, extra windows, and multiple door placements, Yoderbilt caters to both hobby gardeners and those planning larger harvests.
  • Strong weather performance: The heavy-duty wood construction paired with thick polycarbonate panels provides stability in high-wind and variable-weather regions. Many growers report that Yoderbilt structures remain secure through storms and seasonal shifts.
10

Cedar-Built Greenhouses

By Cedar-Built Greenhouses

Cedar-Built Greenhouses
Our Rating: 4.2/10
Price: From $10,550 USD

If you’re after a greenhouse that blends natural beauty, insulation, and long-term durability, Cedar-Built Greenhouses offer a compelling option. Their kits are crafted from clear Coastal Western Red Cedar, a material known for its natural resistance to rot, insects, and moisture.

Product Details

Price:
From $10,550 USD
Wind Resistance:
Moderate (not specified)
Reviews:
Limited reviews
Materials:
Western Red Cedar frame, twin-wall polycarbonate
Snow Load:
Moderate (not specified)
Warranty:
Not specified

Cedar-Built offers a wide selection of sizes, from compact hobby greenhouses to larger 10- and 12-foot-wide models. Each kit can be customized based on climate, available space, and growing needs, making it a flexible choice for gardeners who want both performance and aesthetic appeal.

Why it stands out:

  • Natural durability and insulation: Western Red Cedar naturally resists decay, warping, and insect damage. The wood frame also provides better thermal insulation than aluminum or steel, helping maintain stable interior temperatures year-round.
  • Customizable and scalable: Kits come in multiple widths (6′, 8′, 10′, and 12′) with options for base-wall height, door and window configurations, shelving, ventilation upgrades, and insulation panels.
  • Pre-fabricated for easy assembly: All cedar components are precision-milled, pre-cut, and labeled. Hardware and instructions are included, and two people can assemble most sizes over a weekend.
  • Year-round capability: Combined with polycarbonate or plexiglass glazing, the insulated cedar frame helps retain warmth in winter and moderate heat in summer.

How to Choose the Right Greenhouse Kit

Selecting among the best backyard greenhouses 2026 involves more than picking a pretty structure. Consider these factors when deciding which kit fits your needs:

1. Materials

The frame and glazing determine a greenhouse’s longevity and insulation. Aluminum and polycarbonate greenhouse kits are lightweight, rust-resistant, and low-maintenance, making them a popular choice for year-round gardeners. Galvanized steel used in the Planta Greenhouses Sungrow and Sigma models offers maximum strength for windy or snowy sites. Wood-and-glass greenhouses look charming but require regular upkeep to prevent rot and breakage.

2. Ventilation and Climate Control

Good ventilation prevents overheating and mold. Two doors or doors plus side windows improve cross-ventilation — the Planta Greenhouses Sigma and Sungrow include doors at both ends and optional side windows for end-to-end airflow. In hotter regions, consider shade cloths or fans; in cooler climates, add heaters or thermal mass to store heat.

3. Durability and Weather Resistance

Wind and snow ratings matter, especially in exposed or snowy areas. The Palram Glory and Exaco Riga models use thick polycarbonate panels for strength and insulation. Planta Greenhouses Sungrow 20 offers even more support with a 75 psf snow rating, which equals roughly 6 feet of light snow. Arch or bell-shaped roofs also help because they encourage snow to slide off rather than accumulate.

Conclusion

Selecting the best greenhouses 2026 is about balancing size, climate, and your growing goals. Whether you prefer the durability of the Planta Greenhouses Sungrow 20 or the convenience of a Quictent pop-up, investing in one of the top backyard greenhouses of 2026 will help your garden thrive year-round. With durable materials like galvanized steel and polycarbonate, these kits make it easy to enjoy fresh produce year-round while keeping your plants protected from unpredictable weather.

Frequently Asked Questions

1. What is the best greenhouse to buy in 2026?

For sheer durability and snow/wind performance, the Planta Greenhouses Sungrow 20 remains a top pick. Premium models such as Palram’s Glory, Grandio Summit, and Exaco Riga 2S appeal to serious hobbyists who want higher-end features and finishes.

2. Which greenhouse is best for cold Canadian winters?

For extreme cold and heavy snow, look for greenhouses with thick polycarbonate panels and sturdy frames. The Planta Greenhouses Sungrow 20 can withstand up to 6 ft of snow and 65 mph winds, while the Grandio Summit and Exaco Riga models offer similar durability.

3. How much does a greenhouse cost in 2026?

Prices range widely. Mini greenhouse kits start under US$500. Mid‑sized kits like Veikous or Planta Greenhouses Sigma 20 range from US$700 to US$3,000. Premium models such as Planta Greenhouses Sungrow 20, Palram Glory, or Exaco Riga 2S often exceed US$3,500—factor in shipping, foundation work, and accessories.

4. Which greenhouse is best for areas with heavy snowfall?

In heavy-snow areas, choose greenhouses with high snow-load ratings. Good options include the Planta Greenhouses Sungrow 20, which supports up to 6 feet of snow, and the Grandio Summit with 10 mm polycarbonate panels and reinforced trusses.

5. What type of greenhouse works best in the USA climate?

Climate varies widely across the USA. In northern and mountainous regions, choose insulated twin‑wall polycarbonate or glass greenhouses. In warmer, wind-prone areas, consider ventilated options like Monticello or Yoderbilt. For small urban spaces, compact models like Canopia Hybrid also work well.