• 1. Frame
  • 2. Doors
  • 3. Ventilation
  • 4. Cover
  • 5. Extras
Northern Polytunnels logo

Enviropro Single Span Polytunnel

Prefer to speak to us? Call 01282 873120.

1. Frame

Width*

Note: Width selection affects hoop spacing and available length options. Click i for full details.

Width

Hoop Spacing & Width

Your selected width determines the hoop spacing and impacts other customisation options:

  • 5m & 6m widths = 2.5m hoop spacing

  • 7m, 8m & 9m widths = 2.0m hoop spacing

Changing the width will affect compatible length, and will reset your options. Please review your selections if you make a change.

Length*

Length

Note

Available lengths are dependent on your width choice.
5m, 6m widths = 2.5m length increments
7m, 8m, 9m widths = 2m length increments

Length*

Length

Note

Available lengths are dependent on your width choice.
5m, 6m widths = 2.5m length increments
7m, 8m, 9m widths = 2m length increments

Need a tunnel longer than 30 metres? We’re ready to go the distance. Let's make it happen.

Going big? We can provide extended lengths beyond our standard options. Drop us a line and we’ll tailor it to your space.

📞 Call us on 01282 873120
📧 Email: sales@npstructures.co.uk

Foundations*

Choose the most suitable method for securing your tunnel. All options use our heavy-duty 2.5mm MAGNAtube® galvanised steel tubes, designed with a unique hoop jacking system that allows each hoop to be raised and locked into position after the cover is fitted - delivering a perfect, drum-tight finish. Click i for more info.

Foundations*

Choose the most suitable method for securing your tunnel. All options use our heavy-duty 2.5mm MAGNAtube® galvanised steel tubes, designed with a unique hoop jacking system that allows each hoop to be raised and locked into position after the cover is fitted - delivering a perfect, drum-tight finish. Click i for more info.

Crop Bars Options

Add extra strength to your tunnel and support for hanging crops. Check zone map for recommendations, click i.

Crop Bars Options

EnviroPro Single Span crop bar arrangement

Crop Bars Options

Add extra strength to your tunnel and support for hanging crops. Check zone map for recommendations, click i.

Crop Bars Options

EnviroPro Single Span crop bar arrangement

Crop Bars Options

Add extra strength to your tunnel and support for hanging crops. Check zone map for recommendations, click i.

Crop Bars Options

EnviroPro Single Span crop bar arrangement

Crop Bars Options

Add extra strength to your tunnel and support for hanging crops. Check zone map for recommendations, click i.

Crop Bars Options

EnviroPro Single Span crop bar arrangement

Crop Bars Options

Add extra strength to your tunnel and support for hanging crops. Check zone map for recommendations, click i.

Crop Bars Options

EnviroPro Single Span crop bar arrangement

2. Doors

Front Door Option

We only offer sliding doors on our tunnels - they’re more reliable, easier to operate, and built to last. Choose between our standard aluminium or heavy-duty aluminium options. Click i for full specs.

Rear Door Option

3. Ventilation

Side Vent

Side Vent

For longer tunnels, airflow from open doors alone may not be enough to prevent stagnant air and uneven temperatures. Side vents improve internal circulation by drawing fresh air through the length of the tunnel.

Helps reduce heat buildup in summer

Limits heat loss when closed in colder months

Encourages earlier planting and consistent growing conditions

Works alongside doors and roof vents for full climate control

Available Options:

None – Choose this for simple setups or shorter tunnels

Side Vent without Curtain – Standard venting system for enhanced airflow

Side Vent with Curtain – Includes protective curtain to shield crops from direct wind and rain

Side Vent

Side Vent

For longer tunnels, airflow from open doors alone may not be enough to prevent stagnant air and uneven temperatures. Side vents improve internal circulation by drawing fresh air through the length of the tunnel.

Helps reduce heat buildup in summer

Limits heat loss when closed in colder months

Encourages earlier planting and consistent growing conditions

Works alongside doors and roof vents for full climate control

Available Options:

None – Choose this for simple setups or shorter tunnels

Side Vent without Curtain – Standard venting system for enhanced airflow

Side Vent with Curtain – Includes protective curtain to shield crops from direct wind and rain

Side Vent

Side Vent

For longer tunnels, airflow from open doors alone may not be enough to prevent stagnant air and uneven temperatures. Side vents improve internal circulation by drawing fresh air through the length of the tunnel.

Helps reduce heat buildup in summer

Limits heat loss when closed in colder months

Encourages earlier planting and consistent growing conditions

Works alongside doors and roof vents for full climate control

Available Options:

None – Choose this for simple setups or shorter tunnels

Side Vent without Curtain – Standard venting system for enhanced airflow

Side Vent with Curtain – Includes protective curtain to shield crops from direct wind and rain

Side Vent

Side Vent

For longer tunnels, airflow from open doors alone may not be enough to prevent stagnant air and uneven temperatures. Side vents improve internal circulation by drawing fresh air through the length of the tunnel.

Helps reduce heat buildup in summer

Limits heat loss when closed in colder months

Encourages earlier planting and consistent growing conditions

Works alongside doors and roof vents for full climate control

Available Options:

None – Choose this for simple setups or shorter tunnels

Side Vent without Curtain – Standard venting system for enhanced airflow

Side Vent with Curtain – Includes protective curtain to shield crops from direct wind and rain

Side Vent

Side Vent

For longer tunnels, airflow from open doors alone may not be enough to prevent stagnant air and uneven temperatures. Side vents improve internal circulation by drawing fresh air through the length of the tunnel.

Helps reduce heat buildup in summer

Limits heat loss when closed in colder months

Encourages earlier planting and consistent growing conditions

Works alongside doors and roof vents for full climate control

Available Options:

None – Choose this for simple setups or shorter tunnels

Side Vent without Curtain – Standard venting system for enhanced airflow

Side Vent with Curtain – Includes protective curtain to shield crops from direct wind and rain

Left Curtain Controls
Side Vent 2

Improve airflow and control the internal climate with side vents. Choose with or without protective curtains with manual or automated opening.

Side Vent 2

For longer tunnels, airflow from open doors alone may not be enough to prevent stagnant air and uneven temperatures. Side vents improve internal circulation by drawing fresh air through the length of the tunnel.

Helps reduce heat buildup in summer

Limits heat loss when closed in colder months

Encourages earlier planting and consistent growing conditions

Works alongside doors and roof vents for full climate control

Available Options:

None – Choose this for simple setups or shorter tunnels

Side Vent without Curtain – Standard venting system for enhanced airflow

Side Vent with Curtain – Includes protective curtain to shield crops from direct wind and rain

Side Vent 2

Side Vent 2

Our side ventilation panel gives your EasyBuild Polytunnel even better ventilation, helping you to create the best possible growing environment.

As part of our re-engineered ventilation panel we also incorporated draught exclusion panels at each end of the vent to ensure draughts are kept to a minimum to help maintain higher temperatures during the colder months when your side curtain is closed.

Side Vent 2

Side Vent 2

For longer tunnels, airflow from open doors alone may not be enough to prevent stagnant air and uneven temperatures. Side vents improve internal circulation by drawing fresh air through the length of the tunnel.

Helps reduce heat buildup in summer

Limits heat loss when closed in colder months

Encourages earlier planting and consistent growing conditions

Works alongside doors and roof vents for full climate control

Available Options:

None – Choose this for simple setups or shorter tunnels

Side Vent without Curtain – Standard venting system for enhanced airflow

Side Vent with Curtain – Includes protective curtain to shield crops from direct wind and rain

Side Vent 2

Side Vent 2

For longer tunnels, airflow from open doors alone may not be enough to prevent stagnant air and uneven temperatures. Side vents improve internal circulation by drawing fresh air through the length of the tunnel.

Helps reduce heat buildup in summer

Limits heat loss when closed in colder months

Encourages earlier planting and consistent growing conditions

Works alongside doors and roof vents for full climate control

Available Options:

None – Choose this for simple setups or shorter tunnels

Side Vent without Curtain – Standard venting system for enhanced airflow

Side Vent with Curtain – Includes protective curtain to shield crops from direct wind and rain

Side Vent 2

Side Vent 2

For longer tunnels, airflow from open doors alone may not be enough to prevent stagnant air and uneven temperatures. Side vents improve internal circulation by drawing fresh air through the length of the tunnel.

Helps reduce heat buildup in summer

Limits heat loss when closed in colder months

Encourages earlier planting and consistent growing conditions

Works alongside doors and roof vents for full climate control

Available Options:

None – Choose this for simple setups or shorter tunnels

Side Vent without Curtain – Standard venting system for enhanced airflow

Side Vent with Curtain – Includes protective curtain to shield crops from direct wind and rain

Right Curtain Controls
Front Above Door Louvre*

âš  Above door louvres are available on 8m and 9m EnviroPro Single Spans.

Front Above Door Louvre

Ventilation Louvres - Rack and Pinion (Above the door)

These louvres feature a rack and pinion system for opening, controlled by a gearbox with winding handle. The rack and pinion louvres are fully adjustable.

Rear Above Door Louvre*

âš  Above door louvres are available on 8m and 9m EnviroPro Single Spans.

Rear Above Door Louvre

Ventilation Louvres - Rack and Pinion (Above the door)

These louvres feature a rack and pinion system for opening, controlled by a gearbox with winding handle. The rack and pinion louvres are fully adjustable.

Front Above Door Louvre*

âš  Above door louvres are available on 8m and 9m EnviroPro Single Spans.

Front Above Door Louvre

Ventilation Louvres - Rack and Pinion (Above the door)

These louvres feature a rack and pinion system for opening, controlled by a gearbox with winding handle. The rack and pinion louvres are fully adjustable.

Rear Above Door Louvre*

âš  Above door louvres are available on 8m and 9m EnviroPro Single Spans.

Rear Above Door Louvre

Ventilation Louvres - Rack and Pinion (Above the door)

These louvres feature a rack and pinion system for opening, controlled by a gearbox with winding handle. The rack and pinion louvres are fully adjustable.

4. Cover

Cover Options

Choose from clear, diffused, or twin-skinned covers - each designed to suit different growing environments and energy needs. Click i for more info.

Cover Options

Choose from clear, diffused, or twin-skinned covers - each designed to suit different growing environments and energy needs. Click i for more info.

Cover Options

Choose from clear, diffused, or twin-skinned covers - each designed to suit different growing environments and energy needs. Click i for more info.

Cover Options

Choose from clear, diffused, or twin-skinned covers - each designed to suit different growing environments and energy needs. Click i for more info.

Cover Options

Choose from clear, diffused, or twin-skinned covers - each designed to suit different growing environments and energy needs. Click i for more info.

Let’s talk twin-skinned.

We can supply twin-skinned coverings for extra insulation. Just get in touch and we’ll help tailor the perfect setup.

📞 Call us on 01282 873120
📧 Email: sales@npstructures.co.uk

Gable End Finish

5. Extras

Irrigation*

Irrigation*

Ground Cover

Suppress weeds and improve growing efficiency with UV-stabilised ground cover. Durable, permeable, and designed for accurate plant spacing. Click i for more info.

Ground Cover

High-performance black polypropylene weed suppressant, designed to improve hygiene and reduce maintenance in commercial tunnels.

  • Light Transmission: Less than 5% – highly effective at blocking weeds
  • Material: UV-stabilised polypropylene (100g/m²)
  • Permeability: 15 litres/m²/second – allows water through while maintaining a dry surface
  • Grid Lines: 25cm x 25cm green grid for easy and accurate plant spacing
  • Application: Suitable for both above-ground and below-ground use
Danish Trolley Track

Danish Trolley Track

Heavy duty weed suppressant membrane.

With less than 5% light transmission, ground cover is an effective weed control fabric. Manufactured from black polypropylene (100gsm) with 25cm x 25cm green grid lines for accurate plant spacing.

Optimum water permeability (15ltr/m2/second). Ideal for above-ground or below-ground applications.

Can be fixed to the ground with staples or pegs.

Require Construction?

We have a number of recommended contractors. Get in touch and we’ll help arrange the perfect setup.

📞 Call us on 01282 873120
📧 Email: sales@npstructures.co.uk

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