A cost-effective choice for large-scale farming, providing reliable year-round protection for crops
For modern growers, the core challenges are expanding cultivation scale, withstanding extreme weather, and increasing crop yields—all while controlling costs. The multi-span high tunnel is becoming the ideal choice for commercial growers, offering outstanding cost-effectiveness, structural stability, and flexible scalability.
What Are Multi-Span High Tunnels?
A multi-span high tunnel is a type of greenhouse formed by connecting multiple individual arched tunnels via drainage gutters. Compared to standalone high tunnels, they significantly improve land utilization and ensure a highly stable internal environment.
Key Advantages Comparison:
| Comparison Item | Single Tunnel Greenhouse | Multi-Span Greenhouse |
| Land Utilization | Lower (independent walls occupy more space) | Land Utilization: More Efficient (shared sidewalls reduce land occupation) |
| Space & Scale | Limited, not ideal for mechanized operations | Large-span space, supports mechanized farming |
| Environmental Stability | Large temperature fluctuations | High thermal capacity, more stable temperature and humidity |
| Scalability | Difficult to plan uniformly | Modular design, allows gradual expansion |
Why Choose Our Multi-Span High Tunnel? Four Key Advantages
- Lower Investment Costs, Larger Growing Space
The multi-span design significantly reduces the number of side walls and the proportion of land occupied by them. On the same land area, the growing area increases by 15–25%, and the cost per unit area is significantly lower—60–70% less than that of glass greenhouses, making it the optimal path for large-scale farm upgrades.
- Comprehensive Crop Protection Against Extreme Weather
The sturdy galvanized steel frame, combined with professional wind-resistant design, effectively withstands:
🌪️ Strong winds (wind resistance up to Beaufort scale 8–10)
🌧️ Heavy rain (rapid drainage via gutter systems)
🧊 Hail damage (impact cushioned by elastic film)
This creates a safe and stable growing environment for crops, significantly reducing losses from weather-related disasters.
- Easy Installation, Saving Time and Labor
All components feature standardized prefabricated designs, with key connections utilizing a socket-and-spigot jointing process. This design offers several on-site benefits:
No complex tools required; ordinary workers can perform the installation
On-site assembly is quick and smooth, reducing construction time by over 40%
A standard 4-span unit can typically be assembled in 2–3 days
- Customizable Height to Meet Diverse Needs
We offer standard specifications while supporting full-scale customization:
Span width: Customizable to 6m, 8m, 10m, and larger spans
Shoulder height/peak height: Flexibly adjustable based on crop height and machinery requirements
Length extension: Unlimited extension based on plot conditions
Structural and Material Details: Quality stems from every component
Our multi-span greenhouses use national standard-grade materials, ensuring a service life of over 10 years.
Main Frame System
| Component Name | Specification Parameter | Technical Feature |
| Column / Ground Stake | Φ48mm Hot-dip Galvanized Steel Pipe | End frame extruded for enhanced ground anchoring strength |
| Arch Rib / Bow | Φ48mm Pre-galvanized Steel Pipe | Split design with socketed middle section for easy on-site assembly |
| Longitudinal Tie Rod (Purlin) | Φ32mm Pre-galvanized Steel Pipe | Reinforces structural strength at both ends of the tunnel |
| End Wind Bracing | Φ32mm Pre-galvanized Steel Pipe | Specifically strengthens the end-face wind resistance |
| Side Wind Bracing | Φ32mm Pre-galvanized Steel Pipe | Improves overall stability of the side walls |
Anchoring and Covering System
Helical Ground Anchors: 27mm diameter hot-dip galvanized steel, screwed into the ground to provide strong pull-out resistance and ensure the overall stability of the greenhouse
Top Covering: 0.15mm triple-layer co-extruded PE agricultural film, with a light transmittance of over 90%, an anti-aging formula, and a typical service life of 4 years
Main Applications
- Cash Crop Cultivation
Early spring and late fall cultivation of fruit and vegetable crops such as tomatoes, cucumbers, and peppers, extending the harvest period by 2–3 months and increasing yield per unit area by over 30%.
- High-Value Fruit Production
Rain-protected cultivation and greenhouse growing of berries such as strawberries, blueberries, and grapes, effectively reducing disease incidence and significantly improving fruit quality and marketable yield.
- Flowers and Seedling Propagation
Provides a stable and controllable environment for flower growth and seedling propagation. Temperature and humidity are easily regulated, improving survival rates and seedling uniformity.
- Agritourism and Pick-Your-Own Gardens
Spacious and clean interior spaces are ideal for conversion into eco-tourism, science education, or pick-your-own experience zones, creating diverse business value.
Our Service Commitment
- Over a Decades of Industry Expertise
Specializing in greenhouse engineering, we possess in-depth knowledge of regional climate characteristics and crop cultivation requirements, delivering tailored professional solutions.
- High-Quality Materials, Sourced Directly
All steel components meet national standards for hot-dip galvanization, with a zinc coating thickness of ≥60μm, ensuring exceptional rust resistance.
Our greenhouse films utilize imported additive formulations, with UV resistance and anti-aging performance verified through field testing.
- Comprehensive Technical Support
From site surveys, layout planning, and foundation construction guidance to post-construction maintenance, we provide one-stop technical services to ensure the smooth implementation of your project.
Get Your Customized Solution Today
Whether you need a single multi-span high tunnel or multiple units for a large-scale farm, we have a solution. Contact us today to get a free quote and professional site planning.
Contact us to receive the following free of charge:
- Professional site planning and design proposals
- Detailed cost estimates and ROI analysis
- Construction guidance and post-sales maintenance support