The Single Span Plastic Greenhouse with Vent System and Galvanized Steel Frame is built for growers who want one simple, low-cost house with reliable climate control. Its hot-dip galvanized steel frame spans 6.4 to 10 meters and stands 4.3 to 6.5 meters tall, while a 0.15 mm or 0.12 mm polyethylene film keeps cost down and light up. Ziyang Bozong supplies the frame, the film covering, and the ventilation system as one package, backed by a 10-year structural warranty, and can add cooling, heating, or irrigation as needed. It suits vegetable, seedling, and flower growers who need a single efficient tunnel rather than a large multi-span complex.
The Single Span Plastic Greenhouse with Vent System and Galvanized Steel Frame is one arched house built for growers who need a simple, low-cost structure with dependable airflow. Ziyang Bozong supplies the hot-dip galvanized steel frame, the polyethylene film covering, and the roof and side ventilation as one coordinated package. The single-span layout keeps construction and drainage straightforward, while the vent system controls heat and humidity during the growing season.
For a glazed alternative, see our polycarbonate covered greenhouse line.
The single-span layout suits operations that need one efficient tunnel rather than a large complex: vegetable and seedling production, flower benches, and season-extension houses. Because the bay is self-contained, it can be sited on uneven ground or added beside an existing house. For crop-scale context, see our vegetable growing greenhouse page.
Q: What is the lifespan of different types of greenhouses?
A: Up to 3-5 years for film, 20+ years for glass and polycarbonate greenhouses. Film covers require replacement every 3-5 years, while the galvanized steel frame lasts over 20 years. Glass and PC panels offer longer service life with minimal maintenance, making them ideal for permanent installations. Our greenhouse frames use hot-dip galvanized steel pipes with a double-sided zinc coating of 200-275 g/m², providing uniform, dense, and strongly adherent protection specifically engineered for high-humidity greenhouse environments and long-term corrosion resistance.
Q: How long does it take to install a commercial greenhouse?
A: Installation typically takes 2-4 weeks depending on project size and complexity. Standard multi-span greenhouses can be erected in 10-20 working days by our experienced technical team at Ziyang Bozong. On-site assembly time varies based on local conditions and project scale, but we provide detailed installation manuals and remote guidance to streamline the process.
Q: Can you customize greenhouse specifications for my farm?
A: Yes, we offer full customization including dimensions, span width, height, covering materials, and ventilation systems. Simply share your crop type, local climate conditions, and growing area requirements, and our engineering team at Ziyang Bozong will design a tailored solution that optimizes your growing environment and maximizes ROI.
Q: What is your warranty policy for greenhouses?
A: Our galvanized steel frame comes with a 5-year warranty against corrosion and structural defects. Film covers include a 3-5 year UV warranty depending on the grade selected, while glass and PC panels are covered by manufacturer warranties. Ziyang Bozong provides technical support and replacement parts throughout the lifespan of your greenhouse.
Q: What is the advantage of a multi-span greenhouse over multiple single-span tunnels for large-scale commercial production?
A: The primary advantage is land utilization efficiency. Multi-span greenhouses eliminate the gaps between individual tunnels—typically 1-2 meters per gap depending on drainage and access requirements—which can represent 10-15% of total land area in large single-span installations. This additional growing area translates directly to higher production capacity within the same land footprint. Beyond land savings, the continuous interior space simplifies equipment movement, reduces travel time for workers and machinery, enables more efficient irrigation system layout, and creates uniform growing conditions across the entire structure—supporting consistent crop quality and simplified management protocols.
Q: What ventilation is included?
A: Ridge vents and side windows are standard for natural airflow; drip irrigation for greenhouse and exhaust fans can be added for forced cooling.
Q: How long does the frame last?
A: The hot-dip galvanized steel pipe is rated for 15-20 years of service and backed by a 10-year structural warranty.
Q: Can it grow leafy crops?
A: Yes. Many buyers run lettuce growing greenhouse setups in this single-span format with bench and drip systems.
Mark Wu leads international projects at Ziyang Bozong, coordinating frame design, film selection, and ventilation layout for overseas buyers. He works from your local conditions and crop plan so the delivered house fits the site rather than a catalogue photo.
"One single-span house was enough to start, and the ridge vents kept it cool through summer." â small farm owner, confirmed grower
"Bozong matched the span to our block and the film to our budget." â project buyer, commercial farm
