Description
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[Patented Dual Swing Doors | Easy Access & Stronger Structure]
Unlike zipper-door greenhouses, this Quictent tunnel greenhouse features patented dual swing-door frames that open a full 180°. The rigid, lockable doors allow effortless entry with carts and tools, improve airflow, and add structural strength for year-round plant protection. -
[Winter-Ready Heavy-Duty Frame | No Sagging, No Collapse]
Built as a true heavy-duty greenhouse for winter, the reinforced roof includes 4 extra crossbars to prevent snow and water buildup. The upgraded 0.7mm galvanized steel frame, secured with spiral ground stakes, stays stable against strong winds and harsh outdoor conditions. -
[140g Tear-Resistant Cover | High Light, High Durability]
The premium 140g PE mesh cover features UV protection and Oxford-reinforced stress points to resist tearing and sun damage. With 85% light transmission, your plants get the sunlight they need while staying protected. The extended 8-inch ground skirt can be buried for added wind resistance and winter insulation. -
[All-Season Growing with Controlled Ventilation]
Designed to extend your growing season, this walk-in greenhouse supports vegetables, flowers, and seedlings from early spring through winter. Equipped with multiple mesh screen windows (size dependent) and full-perimeter velcro seals, it balances airflow, heat retention, and pest protection. -
[Quictent Promise | Long-Term Support You Can Trust]
We stand behind our greenhouse kits. Enjoy lifetime replacement for connectors and stakes, 365-day complimentary replacement for major components, and continued parts support beyond the service period for peace of mind.


Specification
| Parameter Items | Detailed information |
|---|---|
| Frame Material | Metal |
| Nominal Wall Thickness | 140g/sqm |
| Number of Doors | 2 |
| Number Of Vents | 8 |
| Manufacturer | Quictent |
| Size | 20'x10'x6.6' |
| Indoor/Outdoor Usage | Outdoor |
| Special Feature | Increased Top Ribs, Oxford Cloth, Premium, Swing Door |
| Product Dimensions | 236.3 x 118.2 x 78.8 inches |
| Item Weight | 92.6 pounds |
Seasonal Usage Guide
Spring | Early-Season Preparation & Seedling Protection
In early spring, this greenhouse can be used as a soil pre-warming enclosure before planting begins. Setting up the structure one to two weeks in advance helps raise ground temperatures naturally, making soil conditions more suitable for early sowing. During this stage, partial ventilation is recommended to prevent excessive dryness while allowing heat to accumulate gradually.
The greenhouse also functions as a transition and recovery space for young seedlings after transplanting. Newly planted seedlings benefit from reduced wind exposure and more stable temperatures, which helps minimize transplant shock. During the first few days, keeping only one door or a limited number of mesh windows open can create a gentle airflow environment while maintaining warmth.
Usage notes for spring:
- Avoid fully sealing the greenhouse on sunny days to prevent overheating.
- Monitor soil moisture closely, as warmer air can accelerate drying.
Summer | Rain Protection & Heat Management
In summer, the greenhouse is best used as a protective structure against excessive rainfall rather than a heat-retaining space. In regions with frequent rain or storms, it helps shield moisture-sensitive plants such as herbs, strawberries, tomatoes, cucumbers, lettuce and young vegetable plants from waterlogging and fungal diseases. Controlled ventilation through mesh windows and open doors is essential to maintain airflow and reduce humidity buildup.
Rather than continuous enclosure, many users find it effective to operate the greenhouse in an open or semi-open configuration during the hottest parts of the day. This approach allows plants to benefit from rain protection while avoiding heat stress caused by direct sunlight and trapped warm air.
Usage notes for summer:
- Prioritize ventilation over heat retention.
- Avoid leaving the greenhouse fully closed during midday, even for short periods.
Fall | Harvest Extension & Temperature Moderation
In fall, the greenhouse can be used to moderate temperature fluctuations and delay crop maturity. Instead of promoting rapid growth, it creates a more stable environment that protects plants from early frost and cold winds. This is particularly beneficial for leafy greens, herbs, and late-season vegetables that benefit from extended harvest windows.
By closing doors and windows earlier in the evening, users can retain daytime warmth and reduce nighttime temperature drops. During mild fall days, selective ventilation helps prevent excess humidity while maintaining a balanced internal climate.
Usage notes for fall:
- Remove fallen leaves or debris from the roof regularly.
- Adjust ventilation based on daily temperature swings.
Winter | Cold Protection & Structural Care
In winter, the greenhouse serves primarily as a wind and frost barrier rather than a heated growing space. During daylight hours, it captures solar warmth, helping reduce extreme temperature drops at night. This allows cold-tolerant plants to survive longer into the season and protects overwintering plants from harsh wind exposure.
In regions with snow or strong winter storms, structural care becomes essential. Snow accumulation should be removed promptly to prevent excessive load on the roof. During extreme weather events, temporarily removing the cover while leaving the frame in place can help prevent damage and extend the product’s lifespan.When sustained wind speeds exceed 35 mph (56 km/h), additional anchoring or temporary disassembly is strongly recommended.
Usage notes for winter:
- Do not rely on the greenhouse as a heat source in severe cold.
- Inspect anchors and frame connections after storms or heavy winds.
Q&A
Q: Is this greenhouse suitable for winter use?
A: Yes, this greenhouse is specifically engineered for winter use and improved snow-load resistance. To address common issues reported with snow accumulation and roof collapse, we have upgraded the top structure with a reinforced anti-sagging design.
In addition to the standard 44.5" top curved poles, the frame now includes 4 additional 44.5" auxiliary supporting poles and 12 reinforced 59.6" horizontal poles across the roof. This upgraded structure increases load distribution and stability, helping reduce the risk of water or snow buildup. All steel components are made from upgraded 0.7 mm thickened galvanized steel for enhanced strength and rust resistance.
However, even with these reinforcements, we strongly recommend additional precautions in areas with frequent heavy snowfall or winter storms. Extra anchoring, regular snow removal, or temporarily removing the cover or disassembling the greenhouse during extreme weather conditions can significantly help prevent damage and extend the product’s lifespan.
This greenhouse is designed to improve winter performance, but it is not intended to replace permanent structures in severe weather environments.
Q: What wind speed can this greenhouse withstand?
Q: Can this greenhouse be installed on a slope?
A:It is not recommended to install it on a slope as a standard installation method.If installation on a slope is unavoidable, the ground must first be leveled to create a stable, horizontal base. This can be done by cutting into the slope, building a retaining edge, or creating a raised platform. The slope should be gentle; installation is not recommended on surfaces with a gradient greater than approximately 5°.
Additional anchoring is strongly advised, including deeper ground stakes, supplemental anchors, or weighted supports on the uphill side. Uneven ground may increase stress on the frame and connectors over time.
Q: Can I use it as a "work shed" in the forest?
Q: Do you provide warranty service?
A: Quictent has been doing tents business since the early 21st century. We believe in our product quality and after-sales service. Please rest assured to buy and contact us at first if any doubt or problems with this 20x10x6.6 FT Tunnel Hoop Greenhouse.
- one year free warranty for the frame
- 6 months warranty for the cover
- Lifetime Replacement for Connectors, Stakes, Bases.

















