Single-Span Tunnel Greenhouse - PC Cover, Galv. Steel Pipe 1

Single-Span Tunnel Greenhouse - PC Cover, Galv. Steel Pipe 2

Single-Span Tunnel Greenhouse - PC Cover, Galv. Steel Pipe 3

Single-Span Tunnel Greenhouse - PC Cover, Galv. Steel Pipe 4

Single-Span Tunnel Greenhouse - PC Cover, Galv. Steel Pipe 5

Single-Span Tunnel Greenhouse - PC Cover, Galv. Steel Pipe 6

Single-Span Tunnel Greenhouse - PC Cover, Galv. Steel Pipe 7

Single-Span Tunnel Greenhouse - PC Cover, Galv. Steel Pipe

A single-span tunnel greenhouse with a galvanized steel pipe frame and polycarbonate (PC) cover that gives a bright, warm, and stable space for growing. Simple to build and low maintenance — the rust-proof steel is strong while the tough PC panels are UV-resistant, impact-proof, and insulate to keep heat in and shield plants from wind and hail. Selling points: long life and corrosion resistance, excellent light diffusion and thermal insulation, weatherproof performance, easy assembly and customization, and great value for home growers and small farms.

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Irrigation System

Optional

Roof Rolling up System

Optional

Side Rolling up System

Optional

Color

Transparent

Height

3-4.5m

Heating System

Optional

Width

Length

30m

Instruction for use

customization

Weatherproof Galvanized PC Shelter

The Single-Span Tunnel Greenhouse — one of our Top sale products — delivers hassle-free installation and maximized crop yield with a no-upright arched shape that improves light diffusion and allows mechanized operations. Packaged as modular kits with clear assembly manuals, the hot-dip galvanized steel frame and high-quality PC/plastic cover (120/150/200 μm options) combine durable construction, sleek tunnel style and stable, heat-resistant, waterproof performance. Customizable sizes, side ventilation, cooling pads or NFT hydroponic options, free sample availability and factory-direct pricing plus professional planning drawings and installation support ensure growers get the tailored service and reliable quality they need.

Here are three 4-word subtitle options:

The Single-Span Tunnel Greenhouse with PC cover and hot-dip galvanized steel pipe frame is a customizable, large agricultural structure (MOQ 300 sqm) built for long service life and high light transmission; its arched, no-upright skeleton enhances lighting, eases mechanical operations and optimizes land use. As one of our Top sale products, it supports seed breeding, vegetable, fruit and flower cultivation and poultry rearing while offering integrated climate solutions—manual side ventilation with roll-film rod, exhaust-fan-plus-pad cooling—and optional NFT hydroponics for water- and fertilizer-efficient, high-yield production. The durable galvanized skeleton combined with PC cover or high-performance plastic film (120/150/200 micron) provides heat resistance, anti-freezing, waterproofing and excellent ventilation, supported by Sainpoly’s factory capacity, sample service and installation guidance.

Durable Single-Span PC Greenhouse

The single-span tunnel greenhouse is built with a hot-dip galvanized steel tube skeleton and offers a PC cover or high-performance plastic film in customizable sizes, providing durable support and enhanced lighting for easy mechanical operations. Cover options (120/150/200 μm) are waterproof, heat-resistant and anti-freezing, while side ventilation, exhaust fans and cooling pads deliver reliable climate control and improved crop environments. Suitable for vegetables, fruits, flowers, seed breeding and poultry, this efficient design is one of our Top sale products and includes factory-backed service, sample availability and installation guidance.

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Sturdy Insulating High-Yield Protection

Crafted by a family-driven brand with decades of greenhouse engineering experience, the single-span tunnel greenhouse pairs a rigid galvanized steel pipe frame with a high-transmissivity PC cover for a durable, precision-built growing environment. Its single-span layout maximizes usable interior space while the polycarbonate sheet and ventilated design deliver excellent light diffusion, thermal insulation, and reliable protection from weather and pests for year-round crop production. As one of our Top sale products, key features and advantages include corrosion-resistant galvanized tubing, impact-resistant twin-wall polycarbonate, quick-assembly bolt connections, low-maintenance operation, and scalable sizes that shorten installation time and boost yields.

Material introduction

The greenhouse frame is built from hot-dip galvanized steel pipes with zinc coatings of 120/150/200 μm, offering strong, corrosion-resistant support that endures mechanical loads and provides over a decade of reliable service. The PC (polycarbonate) cover delivers high light transmission, UV stabilization, heat resistance, anti-freeze and waterproof performance for stable ventilation and crop protection. As one of our Top sale products, this durable Galv. steel skeleton paired with advanced PC covering is a cost-effective, easy-to-assemble solution for large-scale agricultural use.

◎ Galvanized Steel Skeleton

◎ Durable PC Cover

◎ Single-Span Tunnel Greenhouse

FAQ

What is a Single-Span Tunnel Greenhouse with PC cover and galvanized steel pipe best used for?

This type of greenhouse is ideal for season extension and protected cultivation of vegetables, herbs, flowers, seedlings and high-value specialty crops. Its single-span design provides an unobstructed interior for benches, trolleys or crop rows, making it suitable for small commercial farms, nurseries, research plots, and hobby growers who need a simple, efficient growing space.

How does the PC (polycarbonate) cover affect growing conditions compared to plastic film?

Twin-wall or multi-wall polycarbonate panels offer better insulation, light diffusion, UV protection and impact resistance than single-layer plastic films. That means more even light distribution for crops, improved thermal retention for cooler nights, lower condensation, and a longer-lasting cover that typically reduces replacement frequency.

Is this greenhouse suitable for cold, windy or snowy climates?

Galvanized steel pipe frames are corrosion-resistant and strong, but suitability depends on frame thickness, arch spacing and design load ratings. In windy or snowy regions you should choose a model rated for local wind and snow loads, add proper anchoring, and include bracing if needed. In heavy-snow areas, a steeper arch and timely snow removal are recommended.

What foundation and anchoring options are recommended for installation?

Typical options include concrete footings, ground anchors/earth screws, or perimeter anchor channels fixed into a compacted base. The right choice depends on soil type, local wind conditions and farm practice. Proper anchoring prevents uplift and keeps the single-span structure aligned; consult supplier load specs to select anchors and spacing.

What ventilation, irrigation and climate control systems are commonly used with this greenhouse?

Common setups include roll-up sidewalls or roof vents for passive ventilation, exhaust fans and circulation fans for active airflow, shade cloth for solar control, and drip irrigation or overhead sprinklers for watering. For temperature/humidity control, many growers add thermostats, heaters, evaporative cooling pads or automated vent openers depending on crop needs.

How long does the structure last and what maintenance is required?

With proper installation and care, galvanized steel frames and polycarbonate panels can last 10–20 years or more. Routine maintenance includes cleaning panels to maintain light transmission, checking and tightening bolts, inspecting anchors and bracing, clearing snow, and replacing seals or worn gaskets. Address any surface rust or fastener corrosion promptly to extend service life.

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