Upgraded Heavy-Duty Galvanized Frame: The tunnel greenhouse features load-bearing poles made from reinforced galvanized pipes (Diameter: 1", Wall Thickness: 0.02"), enhancing overall strength and stability. Reinforced door poles, added diagonal bars, U-shaped stakes, and tie-downs increase stability and protect your plants from harsh weather conditions. Thick High-Density PE Cover: This high tunnel greenhouse uses a high-quality 140g/m² PE plastic cover that is waterproof, sun-resistant, and insulating, promoting healthy plant growth. Double-stitched seams and reinforced window seams effectively prevent tearing. The extended PE cover edges can be weighted down or buried in soil to enhance insulation, airtightness, humidity, and temperature control. Spacious Walk-In Design: With a generous 29.2x9.7x6.5ft space, this walk-in greenhouse tunnel is ideal for growing a variety of plants. It allows easy access for management and maintenance, and can accommodate multiple plant shelves to meet both home gardening and commercial planting needs. Efficient Ventilation Design: This hoop house greenhouse is equipped with 12 windows and a large zipper door to ensure excellent airflow. The velcro on doors and windows allows for easy adjustments, while the mesh net helps keep small creatures out, protecting plant health. Versatile Use for Multiple Settings: Suitable for home gardens, farms, and small commercial planting, this green house provides an optimal growing environment for various plants. It effectively extends the planting season, allowing you to enjoy gardening throughout the year.