Sainpoly 9x100m Low-Cost Plastic Film Polytunnel Greenhouse 1

Sainpoly 9x100m Low-Cost Plastic Film Polytunnel Greenhouse 2

Sainpoly 9x100m Low-Cost Plastic Film Polytunnel Greenhouse 3

Sainpoly 9x100m Low-Cost Plastic Film Polytunnel Greenhouse 4

Sainpoly 9x100m Low-Cost Plastic Film Polytunnel Greenhouse 5

Sainpoly 9x100m Low-Cost Plastic Film Polytunnel Greenhouse 6

Sainpoly 9x100m Low-Cost Plastic Film Polytunnel Greenhouse

At dawn, warm light pours through the Sainpoly 9x100m polytunnel, turning neat rows into a green sea beneath a soft plastic film. Built on a strong steel frame with UV-stable film, this low-cost greenhouse is quick to set up, shields crops from wind and rain, and gives farms a long, safe growing space. Easy on the wallet and big on room, it helps you start earlier, protect your plants, and dream bigger.

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Certificate

CE Certificate

Packing

Safe Packing

Covering

150/200micro PE Film

Color

Transparent

Structure

275g/m2 Hot Galvanized Steel Pipe

Features

Stable Structure Easily Assembled

Application

Vegetable Fruits Flowers

Warranty

5-10 Years

Instruction for use

With installation manual and installation video.

Affordable Sturdy UV-Protected Tunnel

The Berry Greenhouse is a cost-saving, space-efficient polytunnel that pairs a hot-dip galvanized steel skeleton with a high-performance plastic film cover to boost ventilation and steady crop production. Offered in customizable multi-span shapes (for example 9x100m), securely packaged for shipment, and available with film thickness options (120/150/180/200 micron), it balances low cost with durable quality and a 15+ year structural life. Factory-direct pricing, free samples (buyer pays freight), and professional after-sales support including planning drawings and installation engineers make procurement and assembly fast and reliable.

Spacious Affordable Crop Protection

The Sainpoly 9x100m Low-Cost Plastic Film Polytunnel Greenhouse, marketed as a Berry Greenhouse, combines a multi-span agricultural layout and customizable large size with a cost-effective plastic film cover (120–200 micro) and hot-dip galvanized steel tube frame. Its core and extended attributes—durable galvanized skeleton with 15+ years service life, strong ventilation, high space-efficiency and tailored sizing—deliver clear value by lowering construction and maintenance costs while optimizing conditions for vegetables, fruits and flowers. Functionally, the robust frame bears heavy loads, enables easy assembly with professional planning and after-sales engineering support, and yields a practical, long-lasting structure for scalable cultivation.

Economical Durable Polytunnel Film

The Sainpoly 9x100m Low-Cost Plastic Film Polytunnel, marketed as the Berry Greenhouse, is a cost-saving, space-efficient multi-span agricultural structure ideal for growing vegetables, fruits and flowers and can be customized to site needs. Its durable hot-dip galvanized steel skeleton offers long service life while the high-performance plastic film cover delivers strong ventilation and easy operation. Manufactured by Weifang Sainpoly, the product is available with film thickness options of 120, 150, 180 or 200 microns and a 300 m² minimum order, backed by planning drawings and after-sales support.

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Efficient Affordable Durable Protection

Sainpoly's 9x100m low-cost plastic film polytunnel greenhouse was crafted with galvanized steel arches and UV-stabilized polyethylene film to provide an affordable, durable shelter tailored for small farms and growers. As a versatile Berry Greenhouse solution it stabilizes temperature and humidity for extended seasons, offers easy roll-up side ventilation and secure anchoring for wind resistance, and enables simpler irrigation and pest management. Key features and advantages include economical construction, quick assembly, high light transmission for better yields, corrosion-resistant frame, customizable end doors, and low maintenance that together lower costs and boost productivity.

Material introduction

The Berry Greenhouse uses a hot-dip galvanized steel tube skeleton with an expected service life of over 15 years, providing a strong, durable frame to bear greenhouse loads and support accessories. Its covering is a cost-effective plastic film available in 120, 150, 180 and 200 micron thicknesses, offering strong ventilation and convenient operation for growers. This combination of galvanized steel structure and adaptable film sheeting makes the Sainpoly 9x100m polytunnel an economical, space-efficient solution for cultivating vegetables, fruits and flowers.

◎ Hot-dip Galvanized Steel Skeleton

◎ High-Performance Plastic Film Covering

◎ Integrated Berry Multi-Span System

FAQ

What is the Sainpoly 9x100m Low-Cost Plastic Film Polytunnel Greenhouse best used for?

This long, economical polytunnel is ideal for large-area protected cropping and season extension. Typical uses include commercial vegetable production (tomatoes, cucumbers, peppers, lettuce), nursery and seedling production, cut flowers and ornamentals, herb production, small-fruit and vine protection, and temporary covered storage. Its continuous 100 m length makes it suitable for mechanized operations, long planting rows, and multi-bay production systems.

How should I prepare the site and install the polytunnel?

Choose a reasonably level, well-drained site with good sun exposure (orient tunnels north–south for even sunlight on both sides). Clear vegetation, mark layout, and compact or level as needed. Follow the manufacturer’s assembly instructions: erect frames/bows, connect purlins and end frames, drape and tension the polyethylene film, and secure with anchors, ground rails, or burying the film. Install end doors, vents, and any roll-up sides or accessories last. Proper anchoring and tensioning are essential for stability and longevity.

How do I manage ventilation, temperature and humidity inside a 9x100m polytunnel?

Use a combination of passive and active systems: roll-up sidewalls and end vents for cross-ventilation, roof vents if available, exhaust or circulation fans for larger setups, and shade cloth to reduce solar gain in hot months. Drip irrigation and proper spacing help control humidity; install gutters or internal drains for water management. For colder seasons, pair with low-energy heaters or thermal screens to maintain target temperatures. Monitor conditions with simple sensors and adjust ventilation and shading as needed.

What crop systems and layouts work well in this greenhouse?

Long single-span tunnels are flexible: use raised beds, double-rows with central aisle, single-row trellising for vine crops, or modular nursery benches for seedlings. Common systems include drip irrigation with fertigation, trellised high-wire production for tomatoes and cucumbers, and bench systems for floriculture. Plan aisles wide enough for workers and equipment, and group crops with similar climate needs together to simplify management.

How long does the plastic film last and what maintenance is required?

Film life depends on material and local climate; UV‑stabilized polyethylene films typically last 2–5 years under normal conditions. Extend life by keeping the cover clean, maintaining good tension, avoiding sharp contacts, and repairing small tears promptly with patch kits. Replace the film when it becomes brittle, heavily stained, or damaged beyond repair. Regularly inspect frame connections, anchors, and doors, and tighten or replace fasteners as needed.

Can the polytunnel withstand wind, heavy rain, or snow?

When properly sited, anchored, and assembled, the polytunnel will handle moderate wind and rain. It is not designed for extreme windstorms or heavy, long-term snow loads without reinforcement. In regions with snow, periodically remove accumulated snow from the roof and consider adding extra bracing or a steeper roof pitch if available. For high-wind or heavy-snow areas, consult the manufacturer about reinforced frames, closer hoop spacing, or alternative greenhouse structures.

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