Outsunny 6' x 6' Polycarbonate Alternatives: 6 Similar Picks Compared
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The Outsunny 6' x 6' polycarbonate greenhouse offers a compact, walk-in structure with an aluminum frame and adjustable roof vent. If you are looking for outsunny 6 x 6 polycarbonate alternatives, you might need a different footprint or feature set. This model measures 6' x 6' with a 6.4' height and includes rain gutters for water collection. Its polycarbonate panels allow 90% of light while blocking UV damage. You may prefer a larger area for more plants or a different color to match your yard. Some buyers also want lockable doors for security or a wider base for stability.
We selected these 6 options because their published specifications overlap with the original. Each pick shares key traits like polycarbonate panels, aluminum frames, and walk-in designs. The list includes models ranging from 6' x 8' to 10' x 18'. You can compare sizes, colors, and additional features like side gutters or vent types. This guide helps you find the right structure based on your available space and growing needs. All products listed here are built for outdoor use and offer similar durability.
Our top pick: Outsunny 6x6 Polycarbonate Walk-in Greenhouse.
How these picks compare to Outsunny
IDEALHOUSE 8x12 ft Aluminum Polycarbonate Greenhouse
The IDEALHOUSE model doubles the floor space to 8x12 feet, giving you significantly more room for plants than the 6x6 Outsunny unit. It maintains the same polycarbonate panel material and adjustable roof vent for ventilation. The aluminum frame supports a larger footprint, weighing 80 pounds compared to the Outsunny’s 58 pounds. You get lockable doors for added security, which the Outsunny does not list. The green color offers a different aesthetic than the silver Outsunny frame. This pick suits gardeners who need extra linear growing space but still want a manageable structure with rainwater collection features.
PABIMIA 8x16 Aluminum Polycarbonate Greenhouse
The PABIMIA greenhouse expands the footprint to 8x16 feet, offering nearly triple the area of the Outsunny 6x6 model. It uses polycarbonate panels and an aluminum frame, similar to the original, but weighs more due to its larger size. The height reaches 80.7 inches, providing more vertical clearance than the Outsunny’s 76.8 inches. It includes roof vents for humidity control and rain gutters for water collection. The black color contrasts with the silver Outsunny frame. This option is best for serious hobbyists with ample yard space who need a robust structure for year-round growing without sacrificing ventilation or drainage capabilities.
EASYHAWK 10x18 ft Polycarbonate Greenhouse
The EASYHAWK model provides a massive 10x18 foot footprint, far exceeding the compact size of the Outsunny 6x6 greenhouse. It features polycarbonate panels and an aluminum frame, ensuring durability similar to the original. The height increases to 98 inches, offering substantial headroom for tall plants or equipment. Roof vents allow for adjustable ventilation, matching the Outsunny’s manual control method. The black color gives it a distinct look. This premium option is ideal for serious gardeners with large yards who need extensive space for extended-season growing while maintaining weather resistance and structural integrity.
SLEKVERSA 6x10 Walk-in Polycarbonate Greenhouse
The SLEKVERSA 6x10 model extends the length to 10 feet while keeping the width at 6 feet, giving you more linear growing space than the square Outsunny unit. It uses polycarbonate panels and an aluminum frame, weighing 86.1 pounds. The height is 76 inches, slightly shorter than the Outsunny’s 76.8 inches. It includes lockable doors for security and roof vents for ventilation. The green color differs from the silver Outsunny frame. This pick is suitable for gardeners who prioritize a secure, walk-in layout with robust weather protection over a compact footprint, offering extra room for plant rows.
Garvee 6x8 ft Polycarbonate Greenhouse
The Garvee 6x8 model adds 2 feet to the length of the Outsunny 6x6 unit, providing more floor space while maintaining a similar width. It uses polycarbonate panels and an aluminum frame, weighing 73.7 pounds. The height is 76 inches, comparable to the Outsunny’s 76.8 inches. It features lockable doors for security and roof vents for ventilation. The silver color matches the Outsunny frame aesthetic. Side gutters aid in drainage and water collection. This option is ideal for gardeners who want a secure, weather-resistant space with a compact footprint that offers slightly more room than the standard 6x6 design.
Jocisland 6x12 Walk-in Polycarbonate Greenhouse
The Jocisland 6x12 model extends the length to 12 feet, doubling the linear space compared to the Outsunny 6x6 greenhouse. It uses polycarbonate panels and an aluminum frame, with a height of 75.6 inches. The width is slightly narrower at 69.8 inches. It includes roof vents for ventilation, though lockable doors are not listed. The black color contrasts with the silver Outsunny frame. This pick is best for gardeners with narrow yard spaces who prioritize UV protection and adjustable ventilation over wide interior room, offering a long, narrow layout for efficient plant arrangement.
Quick picks
Our 7 picks
Outsunny 6x6 Polycarbonate Walk-in Greenhouse
Best for: compact plant protection and rainwater collection
- Frame Material
- aluminum
- Panel Material
- polycarbonate
- Size
- 6' x 6'
- Height
- 6.4' H
- Door Type
- lockable door
- Ventilation
- adjustable roof vent
View on Amazon: Outsunny 6x6 Polycarbonate Walk-in Greenhouse Affiliate link
This 6' x 6' walk-in greenhouse features a 6.4 ft height and an aluminum frame with polycarbonate panels. It includes an adjustable roof vent for humidity control and integrated rain gutters for water collection. The structure weighs 58 pounds and measures 72 inches by 71.7 inches. It suits gardeners needing a compact, durable space for seedlings or small plants in protected conditions.
Pros
- Adjustable roof vent for humidity management
- Integrated rain gutters for water collection
- Aluminum frame resists corrosion
- Polycarbonate panels block UV damage
Cons
- Smaller footprint than many competitors
- No side ventilation windows listed
- Manual vent operation only
Good fit if
- You need a compact grow space under 6 feet wide
- You want to collect rainwater for plants
- You prefer a lightweight aluminum structure
Skip if
- You require large walk-in space for equipment
- You need automatic climate control systems
- You want side vents for cross-breeze
Verdict: Outsunny 6x6 Polycarbonate Greenhouse fits buyers who need a compact, corrosion-resistant structure with manual ventilation and water collection capabilities. It is ideal for small-scale plant protection where space is limited.
IDEALHOUSE 8x12 ft Aluminum Polycarbonate Greenhouse
Best for: gardeners wanting an expanded green walk-in structure
- Frame Material
- Reinforced aluminum
- Panel Material
- Polycarbonate (PC)
- Size
- 8x12 FT
- Height
- 75.6 in
- Door Type
- Sliding lockable door
- Ventilation
- Adjustable roof vents
View on Amazon: IDEALHOUSE 8x12 ft Aluminum Polycarbonate Greenhouse Affiliate link
This walk-in greenhouse gives you an 8x12-foot footprint with a green reinforced aluminum frame and slide-in polycarbonate panels. Its 96-inch width and 144-inch length expand your planting space beyond compact 6x6 models. Equipped with adjustable roof vents, rain gutters, and a lockable sliding door, it suits gardeners who want a larger outdoor growing area with integrated drainage.
Pros
- 8x12-foot footprint provides 96 inches of width and 144 inches of length
- Slide-in polycarbonate panel system simplifies frame installation
- Built-in dual side rain gutters manage runoff during rain and snow
- Adjustable roof vents and lockable sliding door support ventilation and access
Cons
- Peak height of 75.6 inches limits vertical headroom for taller users
- Ships in two separate boxes that may arrive at different times
Good fit if
- You want an 8x12-foot footprint finished with a green aluminum frame.
- You need multiple anchoring choices including ground spikes, soil, or concrete.
- You prefer slide-in panels rather than exterior mounting clips.
Skip if
- You require interior standing height over 75.6 inches.
- You have yard space restricted to a compact 6x6-foot layout.
Verdict: IDEALHOUSE 8x12 FT Green Greenhouse gives gardeners double the footprint of standard 6x6 models along with built-in gutters and roof ventilation. It fits growers who have room for a 12-foot run and require adaptable ground anchoring.
PABIMIA 8x16 Aluminum Polycarbonate Greenhouse
Best for: Large-scale gardening with ample backyard space
- Frame Material
- Aluminum
- Panel Material
- 4mm double-wall polycarbonate
- Size
- 8 x 16 ft
- Height
- 80.7 in
- Ventilation
- Adjustable roof vent
- Assembly
- Slide-in PC panels
View on Amazon: PABIMIA 8x16 Aluminum Polycarbonate Greenhouse Affiliate link
The PABIMIA 8x16 FT greenhouse offers a spacious 80.7-inch interior height for walk-in access. Its aluminum frame supports 4mm double-wall polycarbonate panels that block UV rays while allowing light transmission. An adjustable roof vent helps manage internal temperatures. A side gutter system channels rainwater for plant use. This large structure suits gardeners needing significant growing space and durable all-season protection.
Pros
- 8x16 FT footprint provides ample growing area
- 80.7-inch height allows comfortable walk-in access
- 4mm double-wall polycarbonate panels offer UV resistance and insulation
- Adjustable roof vent enables precise airflow control
- Side gutter system collects rainwater for irrigation
Cons
- 80.7-inch height may be tight for very tall gardeners
- No mention of a locking door mechanism
- Large 8x16 FT size requires a substantial outdoor footprint
Good fit if
- You need a large growing area for multiple plants
- You want a structure with natural light transmission and UV protection
- You prefer aluminum frames for durability and rust resistance
Skip if
- You have limited backyard space for an 8x16 FT footprint
- You require a greenhouse with a locking security feature
- You need a structure taller than 80.7 inches for tall crops
Verdict: PABIMIA 8x16 FT Aluminum Polycarbonate Greenhouse is a robust option for gardeners who need a large, durable space for year-round growing. Its combination of UV-resistant panels and rainwater collection makes it suitable for serious hobbyists with ample yard space.
EASYHAWK 10x18 ft Polycarbonate Greenhouse
Best for: large-scale backyard gardening
- Frame Material
- Powder-coated aluminum
- Panel Material
- 4mm double-wall polycarbonate
- Size
- 10X18 FT
- Height
- 98 inches
- Door Type
- Walk-in
- Ventilation
- Adjustable roof vent
View on Amazon: EASYHAWK 10x18 ft Polycarbonate Greenhouse Affiliate link
This EASYHAWK greenhouse offers a spacious 10x18 FT footprint with 98-inch height. It features a powder-coated aluminum frame and 4mm double-wall polycarbonate panels for durability and light diffusion. An adjustable roof vent helps regulate temperature. The slide-in panel design simplifies assembly for two adults. It suits gardeners needing ample room for raised beds and shelves in outdoor spaces.
Pros
- 10x18 FT spacious walk-in layout
- 98-inch height for comfortable movement
- 4mm double-wall UV-resistant polycarbonate panels
- Adjustable roof vent for airflow control
- Powder-coated aluminum frame for weather resistance
Cons
- Large 10x18 FT footprint requires significant yard space
- 98-inch height may exceed local zoning height limits
- No side windows mentioned for cross-ventilation
Good fit if
- You need maximum interior volume for large plants
- You have a large backyard suitable for this footprint
- You prefer natural light diffusion from double-wall panels
Skip if
- You have limited yard space for a 10x18 FT structure
- You need a compact greenhouse under 8x12 FT
- You require side windows for additional airflow
Verdict: EASYHAWK 10x18 FT Aluminum Greenhouse is ideal for serious gardeners with ample space who need a large, durable structure for extended-season growing.
SLEKVERSA 6x10 Walk-in Polycarbonate Greenhouse
Best for: Gardeners needing extra linear growing space
- Frame Material
- Aluminum alloy
- Panel Material
- Polycarbonate, 720 g/m²
- Size
- 6x10 ft
- Height
- 76 inches
- Door Type
- Lockable sliding door
- Ventilation
- Adjustable roof vent
View on Amazon: SLEKVERSA 6x10 Walk-in Polycarbonate Greenhouse Affiliate link
This SLEKVERSA greenhouse offers a 6x10 ft footprint with a 76-inch peak height. It features a reinforced aluminum alloy frame and 720 g/m² UV-coated polycarbonate panels. The structure supports 110 lb/sq ft snow loads and includes an adjustable roof vent. You get a lockable sliding door and integrated rain gutters. This model suits gardeners needing extra length compared to standard 6x6 options.
Pros
- Reinforced aluminum alloy frame resists rust
- 720 g/m² polycarbonate panels block harmful UV
- Supports 110 lb/sq ft snow load
- Integrated rain gutter system for runoff
- Lockable sliding door for security
Cons
- 6x10 ft size is longer than typical 6x6 alternatives
- Weighs 86.1 pounds, making it bulky to move
- Only includes an adjustable roof vent, lacking side windows
Good fit if
- You need more growing length than a 6x6 shed provides
- You want a walk-in structure with a lockable door
- You prefer slide-in panel assembly for faster setup
Skip if
- You require a compact 6x6 footprint for tight spaces
- You need side window ventilation for better airflow control
- You prefer a lighter structure that is easy to relocate
Verdict: SLEKVERSA 6x10 ft Polycarbonate Greenhouse provides a sturdy, snow-resistant option for gardeners who need extra linear space. It fits buyers prioritizing a secure, walk-in layout with robust weather protection over a compact footprint.
Garvee 6x8 ft Polycarbonate Greenhouse
Best for: secure, compact gardening with drainage
- Frame Material
- Aluminum steel frame
- Panel Material
- 720 g/m² polycarbonate
- Size
- 6 x 8 ft
- Height
- 76 in
- Door Type
- Lockable door
- Ventilation
- Adjustable roof vent
View on Amazon: Garvee 6x8 ft Polycarbonate Greenhouse Affiliate link
This Garvee greenhouse offers 6 by 8 feet of growing space with a 76-inch peak height. It uses 720 g/m² polycarbonate panels and an aluminum steel frame for durability. The design includes a lockable door and an adjustable roof vent for climate control. A side gutter system manages water runoff. It is a solid option for gardeners needing a secure, weather-resistant structure for their patio or backyard.
Pros
- 720 g/m² polycarbonate panels for weather resilience
- Adjustable roof vent for airflow control
- Lockable door for security
- Side gutter system for water drainage
Cons
- Heavier at 73.7 pounds compared to lighter alternatives
- Smaller footprint than the 8x12 and 10x18 options
- Shipped in two separate boxes
Good fit if
- You need a secure greenhouse with a lockable door
- You want effective drainage via a side gutter system
- You prefer a compact 6x8 ft structure
Skip if
- You require a larger 8x12 ft or bigger space
- You need multiple side vents for cross-ventilation
- You prefer a single-box delivery
Verdict: Garvee 6x8 FT Polycarbonate Greenhouse provides a secure, weather-resistant space with a lockable door and side gutters, making it ideal for gardeners who prioritize security and drainage in a compact footprint.
Jocisland 6x12 Walk-in Polycarbonate Greenhouse
Best for: Long narrow garden spaces
- Frame Material
- Aluminum
- Panel Material
- 4mm polycarbonate
- Size
- 6x12x6.3 FT
- Height
- 75.6 inches
- Door Type
- Dual doors
- Assembly
- Expansion bolts, screws
View on Amazon: Jocisland 6x12 Walk-in Polycarbonate Greenhouse Affiliate link
The Jocisland 6x12x6.3 FT greenhouse provides a long, narrow footprint for gardeners needing extra growing length. It features a black aluminum frame and 4mm semi-transparent polycarbonate panels that block 99.99% of UV rays. Dual doors and two roof vents opening up to 160 degrees allow for adjustable airflow. This walk-in shelter is designed for year-round outdoor use and sturdy wind resistance.
Pros
- 6x12x6.3 FT size offers ample interior length for organizing plants and tools
- 4mm polycarbonate panels block 99.99% of harmful UV rays
- Two roof vents open up to 160 degrees for effective temperature control
- Aluminum frame uses screws at every joint and expansion bolts for stability
Cons
- Narrow 6-foot width limits interior maneuverability compared to wider models
- Semi-transparent panels may reduce light intensity for light-sensitive crops
- No mention of included shelving or internal storage solutions
Good fit if
- You have a long, narrow space available for gardening
- You need strong UV protection for delicate plants
- You prefer a walk-in design with dual entry points
Skip if
- You require a wide interior for large equipment or multiple workstations
- You need fully opaque panels for temperature-sensitive species
- You prefer a greenhouse with built-in storage shelves
Verdict: Jocisland 6x12 Polycarbonate Greenhouse is a solid choice for gardeners with linear yard space who prioritize UV protection and adjustable ventilation over wide interior room.
Specifications side by side
| Spec | Outsunny 6x6 Polycarbonate Walk-in Greenhouse | IDEALHOUSE 8x12 ft Aluminum Polycarbonate Greenhouse | PABIMIA 8x16 Aluminum Polycarbonate Greenhouse | EASYHAWK 10x18 ft Polycarbonate Greenhouse | SLEKVERSA 6x10 Walk-in Polycarbonate Greenhouse | Garvee 6x8 ft Polycarbonate Greenhouse | Jocisland 6x12 Walk-in Polycarbonate Greenhouse |
|---|---|---|---|---|---|---|---|
| Frame Material | aluminum | Reinforced aluminum | Aluminum | Powder-coated aluminum | Aluminum alloy | Aluminum steel frame | Aluminum |
| Panel Material | polycarbonate | Polycarbonate (PC) | 4mm double-wall polycarbonate | 4mm double-wall polycarbonate | Polycarbonate, 720 g/m² | 720 g/m² polycarbonate | 4mm polycarbonate |
| Size | 6' x 6' | 8x12 FT | 8 x 16 ft | 10X18 FT | 6x10 ft | 6 x 8 ft | 6x12x6.3 FT |
| Height | 6.4' H | 75.6 in | 80.7 in | 98 inches | 76 inches | 76 in | 75.6 inches |
| Door Type | lockable door | Sliding lockable door | not stated | Walk-in | Lockable sliding door | Lockable door | Dual doors |
| Ventilation | adjustable roof vent | Adjustable roof vents | Adjustable roof vent | Adjustable roof vent | Adjustable roof vent | Adjustable roof vent | not stated |
| Assembly | easy-to-assemble | Slide-in panel system | Slide-in PC panels | Slide-in polycarbonate panel design | Slide-in panels | Slide-in PC panels | Expansion bolts, screws |
| Snow Load | not stated | not stated | not stated | not stated | 110 lb/sq ft | not stated | not stated |
| Material | Polycarbonate | Polycarbonate | Polycarbonate | Polycarbonate | Polycarbonate | Polycarbonate | Polycarbonate |
| Features | Lockable Doors, Vents, Roof Vent | Lockable Doors, Vents, Roof Vent | Vents, Roof Vent | Vents, Roof Vent | Lockable Doors, Vents, Roof Vent | Lockable Doors, Vents, Roof Vent | Vents |
| Recommended Use | Garden, Patio, Backyard, Outdoors | Garden, Patio, Backyard, Outdoors | Garden, Backyard, Outdoors | Garden, Backyard, Outdoors | Outdoors | Garden, Patio, Backyard | Garden, Outdoors |
| Color | Silver | Green | Black | Black | Green - 6x10FT | Silver | Black |
| Style | Walk-in | Walk-in | Walk-in | Walk-in | Walk-in | not stated | Walk-in |
| Dimensions | 72 × 71.7 × 76.8 inches | 144 × 96 × 75.6 inches | 189 × 129 × 80.7 inches | 213 × 120 × 98 inches | 119 × 72.1 × 76 inches | 96 × 72 × 76 inches | 139 × 69.8 × 75.6 inches |
| Weight | 58 pounds | 80 pounds | not stated | not stated | 86.1 pounds | 73.7 pounds | not stated |
| Model | 845-243 | zHXoNfPf3Bepgi54f8Hmmwjd3vL27 | PAPG-X16BK | JJ-APG-18YBK | crD-XVyfCnMiXNBZbn9sJQqVcAY-L | 1bAiYARhqDLV37079KEjKALl1u | YPG105 |
Frequently asked questions
Which alternative offers the largest growing area?
The EASYHAWK 10x18 ft Polycarbonate Greenhouse provides the largest footprint among these picks. It measures 120 inches wide by 213 inches long, offering ample space for serious gardeners. This model features an aluminum frame and black polycarbonate panels to support extended-season growing in large backyards.
Are there walk-in options with lockable doors?
Yes, several models include lockable doors for added security. The IDEALHOUSE, SLEKVERSA, and Garvee greenhouses all feature this attribute. These units allow you to secure your plants and tools while maintaining the walk-in style that makes accessing crops easier during daily gardening tasks.
Do these greenhouses include rainwater collection gutters?
Some models are designed with built-in gutters for water management. The IDEALHOUSE 8x12 ft and Garvee 6x8 ft units both include side gutters. These features help channel rainwater away from the structure, which is useful for gardeners who want to manage runoff or collect water for irrigation.
Which model is best for narrow garden spaces?
The Jocisland 6x12 Walk-in Polycarbonate Greenhouse is ideal for linear yard spaces. It measures 69.8 inches wide by 139 inches long, providing extra length without requiring a wide footprint. This layout suits buyers who have limited width but need more linear growing area for their plants.
What colors are available for these polycarbonate greenhouses?
These alternatives come in silver, green, and black finishes. The Outsunny and Garvee models feature silver frames, while the IDEALHOUSE and SLEKVERSA units are green. The PABIMIA, EASYHAWK, and Jocisland options are available in black. You can choose a color that matches your backyard aesthetic.
How do the heights compare across these models?
Heights range from 75.6 inches to 98 inches. The EASYHAWK model is the tallest at 98 inches, offering more vertical headroom. Most other models, including the Outsunny and Garvee, sit around 76 inches. Taller structures can accommodate larger plants or improve airflow for year-round growing.
Do all these greenhouses have roof vents?
Yes, every listed model includes roof vents for temperature control. These vents allow you to adjust airflow manually, which is critical for maintaining stable conditions inside the structure. Whether you choose a compact 6x6 or a large 10x18 unit, ventilation remains a standard feature across all picks.
Which option is the lightest to assemble?
The Outsunny 6x6 Polycarbonate Walk-in Greenhouse is the lightest at 58 pounds. Its compact size and lower weight make it easier to handle during setup. Heavier models like the SLEKVERSA weigh 86.1 pounds, which may require more effort or additional help during the assembly process.