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Easy-Build Polytunnels

The Easy-Build polytunnel is by far the quickest, easiest and most durable on the market - Now with a Lifetime Guarantee*

Simplicity and ease has been the driving force behind the Easy-Build design. No specialist tools or skills required, everything simply slots or bolts together.


Lifetime Guarantee - Find Out More

Screw Anchors - No digging, no mess and very quick

‘Wiggle Wire’ Polythene Fixing System - Quick, simple & secure

Aluminium Base Rails  - No need to trench-in the cover

Aluminium Door Frames  - Pre cut - no carpentry required

Aluminium Sliding Doors  - Easy to assemble and problem free

Stronger Steel Hoops  - For all weather conditions


8ft Wide Polytunnel
10ft Wide Polytunnel
12ft wide Polytunnel
14ft Wide Polytunnel
16ft Wide Polytunnel

Construction Service Available

What's so great about the Easy-Build?

Lifetime Guarantee

Strength and durability is the cornerstone of our business and we don't believe in cheap, flimsy materials. That's why all of our products are designed and manufactured in the UK using the best quality materials available. As of January 2018, all of our steel-hooped hobby polytunnels will be made from high-performing steel with a lifetime guarantee. ArmourGuard® is Northern Polytunnels' newly developed high-endurance tube, combining extraordinary levels of corrosion resistance with the durability of high strength steel. ArmourGuard® offers up to 20 times the corrosion resistance of galvanised tube thanks to its revolutionary zinc, aluminium and magnesium coating.

100 Years Exposure without Deterioration

ArmourGuard® is designed not just to survive in the most hostile environments but also to offer extreme longevity. In exhaustive tests carried out by Rotech Laboratories, one of the UK’s leading test houses, ArmourGuard® endured the equivalent of 100 years’ exposure to the harshest elements without undue deterioration.

Environmentally Friendly

ArmourGuard® even protects the environment by reducing the amount of zinc which is use in the manufacturing process compared to fully galvanised steel tube, and by extending the product life.

*Please note, our lifetime guarantee applies to pre-galvanised tubular steel components only (arches, stabilisers, bracings & ridge tubes). Even though all of our brackets and fittings are also fully galvanised, they are not protected with our ArmourGuard® coating and as such do not carry the same guarantee. Our polythene covers, and anti-hot spot tape have up to 7 years guarantee against UV degradation. All timber components are pressure treated with Tanalith E ™ and as such have a life expectancy of 15-20 years.

No Digging Required

Screw AnchorsBy far the best and most popular method. Suitable with most soil types, especially clay soils.  Avoid only on ground with a high stone/rubble content, peat soils, or loose soil which has been recently disturbed or deep cultivated.
Each screw anchor only takes 1-2 minutes to screw in to the ground. Compare this to the time it takes to dig each hole when using either the concreting method or ground anchor plates, and without any of the mess or exertion. In recent tests, we measured the strengths of different polytunnel foundation options.  The tests showed that our screw anchors out performed all other methods in most types of soil.  A close second place was traditional foundation tubes when concreted in position.  In third place, trailing a long way behind, was the use of ground anchor plates (sometimes called ground anchors).  They simply didn’t come anywhere close to the other two methods.  To give you some idea of the difference, we compared our screw anchors to one of our competitor’s heavy-duty ground plate kits, and found that it took four times more force to pull our screw anchors out of the ground. 

Quick and Easy Cover Securing System

Our aluminium base rails, doors and door frames all incorporate our unique ‘W-Wire’ polythene securing system.  Simply weave the ‘W-Wire’ in to the open channel of the aluminium rails & frames, securely trapping the polythene in place.  Don’t worry if you need to redo a section, it’s easily unclipped and can be ‘wiggled’ back in to place in a jiffy, ensuring a tight, neat finish every time!  This is especially useful when pleating the polythene around the door frames.  For those of you who have previously used timber rails you’ll already know how difficult it is to fasten polythene using wooden laths/battens - trying to pull the polythene tight whilst holding a lath in place, positioning the nails, and finally hammering them home, and all with only one pair of hands.  ‘W-Wire’ is the easiest and quickest system on the market and doesn’t require any specialist tools.


Stronger Steel Hoops For All Weather Conditions

Hoops that are made from three or four pieces are easier to make and more convenient to deliver, however, they are not as strong as a two piece hoop and often require extra bracing bars to support them.  That is why we only make two-piece hoops, and one of the reasons why we sell so many polytunnels to customers in the Scottish Highlands and Islands. 

All our steel tube is construction grade Z35 that is galvanised both inside and out.  It is 32mm diameter with a 1.5mm wall thickness.  

NOTE: Watch out for other manufacturers who use 25mm or 28mm tube, and sometimes with only a 1.2mm wall thickness (20% thinner).

 ArmourGuard: Available with all Hobby Polytunnels

No Timber = No Sawing, No Hammering, No Fuss

Due to the natural variances which occur in timber, and it’s much shorter lifespan, we now only use aluminium for our base rails, doors and door frames.  Aluminium is free from defects (such as knots, splits etc.) and will last a lifetime, unlike treated timber which has a lifespan of around 15 years.  

All the fixtures and fittings are simple to attach and allow a little room for adjustment, if required.  Every piece of aluminium is cut precisely to length, removing the need to trim off any excess. 

Our single door frames have a 0.8mtr opening. The double door frames have a 1.7mtr opening.  Due to the extra width of a double door frame they are only available for 12ft (3.66m) and 14ft (4.27m) wide polytunnels.  The height of the door lintel is approx. 2mtr.



Durable Aluminium Sliding Doors 

Aluminium Sliding Doors: Made from easy-to-assemble aluminium sections incorporating our unique ‘W-Wire’ polythene fixing system.  Supplied with enough materials to fully clad it with polythene, or to clad the top half with netting for extra ventilation.

PVC Ventilation Panels: Fabricated from translucent PVC fabric with a PVC mesh insert.  Comes with a removable translucent PVC fabric panel which simply attaches over the mesh (to seal the vent) with its Velcro edging.  Can be fully opened, fully closed or partially opened.  Gives ventilation without allowing unwanted pests to enter your polytunnel.  Quick and easy to fit. Only available with single door frames and only one per structure as this option isn’t used for access.


Easy to Follow Instructions and Instruction Video

Our new Easy-Build polytunnel not only comes with a comprehensive set of instructions, there is also an in-depth instruction video which can be viewed here... 


For prices or to find out more, select the width below...

8ft Wide Polytunnel
10ft Wide Polytunnel
12ft wide Polytunnel
14ft Wide Polytunnel
16ft Wide Polytunnel
Construction Service Available


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Mill Green, Waterside Road, Colne, Lancs, BB8 0TA