Our small polytunnel greenhouse combine UV-protected PE mesh covers with heavy-duty galvanized steel frames, creating an affordable and spacious growing environment for commercial and home growers. The tunnel design maximizes internal growing space while the roll-up side vents provide excellent airflow control. Available in various lengths and widths with easy assembly. Ideal for season extension, plant protection, and high-yield vegetable cultivation.

Specification of sturdy polytunnel for Sale

Why Choose This strong polytunnel?

Reinforced UV-Protected PE Cover

The reinforced PE mesh cover helps create a protected growing environment while allowing natural light to reach the plants. Available cover weights range from 140gsm to 180gsm, allowing buyers to select a specification that matches their market positioning and target price. The mesh reinforcement helps improve tear resistance compared with a basic unsupported plastic film. Buyers can also source compatible replacement PE greenhouse covers for after-sales service or repeat retail sales.

Hot-Dipped Galvanized Steel Frame

The polytunnel greenhouse uses a hot-dipped galvanized steel frame with tube diameters ranging from 18mm to 25mm. The arched structure creates walk-in growing space while the screw-connected frame supports straightforward assembly and packing. Different tube diameters may be selected according to the greenhouse size, target retail price and structural requirements.

Zippered Access and Ventilation

A zippered entrance provides convenient access for watering, plant maintenance and harvesting. Depending on the selected model, side windows or roll-up ventilation openings can help users manage airflow and indoor temperature.

Spacious Walk-In Growing Area

The small poly tunnell shape provides usable planting space along both sides of the structure and sufficient access through the center. It is suitable for raised beds, vegetable rows, plant containers and seasonal growing activities. Customers who need a more compact structure with integrated shelving can compare the walk-in poly tunnel garden greenhouse.

DIY-Friendly Assembly

The frame uses screw connections and is designed for customer assembly. Clearly numbered components, illustrated instructions and installation support can reduce assembly difficulty and after-sales questions. Additional greenhouse kits and accessories are available for buyers who want to create a broader garden product assortment.

What Is Included in the Tunnel greenhouse wholesale?

A complete tunnel greenhouse package may include the following components:

Galvanized steel frame tubes

Reinforced PE mesh greenhouse cover

Zippered door panel

Ventilation window panels

Frame connectors and screws

Ground stakes

Wind ropes

Cover fixing components

Illustrated installation manual

Optional Accessories

Depending on the model and buyer requirements, optional products may include:

Additional ground anchors

Greenhouse clips

Irrigation or sprinkler kits

Planting shelves

Replacement doors and windows

Replacement PE covers

Additional fixing ropes

Repair tape or cover repair kits

Buyers can view more greenhouse accessories and replacement parts when planning a retail product bundle.

OEM greenhouse poly tunnel Greenhouses for Retailers and E-commerce Brands

PSO supports OEM and ODM greenhouse programs for distributors, garden retailers and online sellers. Customization can be planned around the target market, selling channel, price range and packaging requirements.

Available customization options may include:

Standard or customized greenhouse dimensions

Different steel tube diameters

Optional PE cover weights

Cover color selection

Printed brand logo

Custom carton artwork

Multilingual installation manuals

Product labels and warning labels

Barcode or FNSKU labelling

Mail-order packaging

Replacement cover and spare-parts programs

Final specifications should be confirmed through a sample or pre-production unit before mass production.

OEM Order Process

1. Model Selection

Select a standard tunnel greenhouse from the PSO catalogue or provide the required dimensions and a reference product.

2. Market Requirements

Confirm the destination market, sales channel, target retail price, product specification and packaging expectations.

3. Branding and Packaging

Provide the logo, carton artwork, manual language, barcode requirements and other brand materials.

4. Sample Confirmation

Review a sample or pre-production unit before mass production.

5. Production and Quality Inspection

Production begins after the specification, packaging and sample have been approved. Quality checks should cover the frame, cover, accessories, carton and installation components.

6. Packing and Shipment

PSO prepares the cartons, loading plan and shipping documents according to the confirmed order.

Tunnel Greenhouse Installation and Outdoor Use

The screw-connected frame is intended for step-by-step assembly using the supplied components and instructions. Buyers and end users can also view the tunnel greenhouse installation video before setting up the product.

A typical installation process includes:

Select a flat and well-drained installation area.

Arrange and identify all frame components.

Assemble the galvanized steel arches and connecting tubes.

Check that the frame is square and stable.

Fit the PE cover over the completed frame.

Align the door and ventilation openings.

Tension the cover evenly without overstretching it.

Install all supplied ground anchors and wind ropes.

Check the greenhouse again after the first period of use.

The greenhouse should be secured using all anchoring components supplied with the selected model. Additional anchoring may be required for exposed gardens, soft soil or areas with stronger seasonal winds. Users should close doors and ventilation openings before windy weather and remove accumulated water or snow from the cover when necessary.

Tunnel Greenhouse FAQ

What tunnel greenhouse sizes are available?

The current product range covers lengths from 200cm to 800cm, widths from 200cm to 300cm and heights from 200cm to 240cm. Standard model dimensions should be listed separately so buyers can quickly select the most suitable option.

Can PSO customize the tunnel greenhouse size?

Custom dimensions may be discussed based on the required order quantity, frame structure, cover specification and packaging limits.

What is the MOQ for a tunnel greenhouse order?100 sets

100 sets.

Can the cover, color and packaging be customized?

OEM options may include the cover weight (140 - 180gsm）, cover color （clear,green and white), logo, carton artwork, instruction manual language, barcode and FNSKU labels. Final availability depends on the selected model and order quantity.

Do you provide replacement portable polytunnel covers?

PSO supplies replacement greenhouse covers in different materials, weights and dimensions. Buyers should provide the original greenhouse model or exact frame measurements when requesting a replacement cover.

What is included in each greenhouse kit?

A typical kit may include the metal frame, PE cover, doors, windows, connectors, screws, anchors, ropes and installation instructions.

How long does production take?

7-10 days for 100 sets.  30 days for 2000 sets.

What's your sample policy ?

Sample for each model for free but need charge for the air shipping costs. Will refund the sample costs in the next transaction.

How's your packaging?

We provide Default 5-layer top and bottom carton for protection. We support customized services such as ink customization and barcode spraying.

If you are looking for a reliable greenhouse factory, please contact us.

For more information about polytunnel 3m x 6m and polytunnel small garden, please feel free to contact us!