Quite small and yet perfectly formed, our 8ft wide polytunnels are a popular choice for domestic use, for gardens, allotments and other little community spaces. No matter how much growing space you have you always want more but an 8ft wide polytunnel is easily big enough to allow you to grow food all year round. Just choose the length of tunnel you require - we recommend going for a tunnel that is as long as you can fit in your space - there is always something more you will want to cram in! Then just click on any extras you may wish to buy. Not sure what's included? Click on 'What's In The Kit' to find out what you need to know.
Polytunnel extras will not only allow you to make the most of your space, maximise yield and make your life easier, they can also allow you to get some great savings with our bonus save scheme. Buy extras such as base rails, crop bars, sliding doors or staging and you can save up to 20% on your purchase. 8ft wide polytunnels are great value for money, allowing you to cut costs on feeding your family. With these bonus savings, they are even better for your household finances.
One of the most popular sizes in the entire range, the 8ft model with 3ft 3in (0.99m) high straight sides provides the growing space and air circulation that is essential for a wide range of plants, particularly those that are tall or are usually grown on staging.
Technical Specification
| Width | 8ft (2.44m) |
|---|---|
| Hoop Spacing | 5ft (1.53m) |
| Overall Height | 6ft 8in (2.03m) |
| Straight Side | 3ft 3in (0.99m) |
| Head Room (15cm from side) | 4ft 5in (1.34m) |
| Hoop Diameter | 1in (25.4mm) |
| Steel Specification | E370 Galv High Tensile |
| Door Opening Width | 2ft 3in (0.69m) |
| Door Opening Height | 6ft (1.83m) |
| Distance over Hoop | 18ft (5.48m) |
| Door Frame | 3in x 2in (75mm x 47mm) |
| Inner Door | 2in x 2in (50mm x 50mm) |
| Base Rail | 3in x 2in (75mm x 47mm) |
Downloadable instructions before you buy. All of our Polytunnels are supplied with a printed copy of the assembly instructions, however we invite you to visit our dedicated construction portal at construct.firsttunels.co.uk prior to purchase. There you will find comprehensive instructions and videos available for download. This ensures that you are fully informed about the assembly process and what to expect from your Polytunnel.
Complete build videos. We’ve created a series of detailed videos, showcasing the entire construction process of our Polytunnels. From the basic setup to the inclusion of every possible option, these videos are designed to guide you through each step of the build. By watching these, you’ll gain a clear understanding of the effort and craftsmanship that goes into each of our Polytunnels.
Embark on the thrilling adventure of constructing your expansive 8ft wide polytunnel with our exclusive playlist! Immerse yourself in a thoughtfully crafted series of step-by-step tutorials, expert tips, and insightful demonstrations designed to guide you through each phase of your polytunnel project. From the initial planning stages to the final embellishments, think of us as your dedicated companion.
Discover the essential tools and materials crucial for a triumphant build, and uncover clever hacks tailored to simplify the process, ultimately saving you valuable time and effort. Our committed experts are ready to personally guide you through foundation preparation, frame assembly, cover installation, and all the intricate details needed for crafting a resilient and functional 6ft wide polytunnel.
Join us on this captivating journey to transform your gardening space into an impressive 8ft wide polytunnel haven. Happy gardening!
Click on a video below to watch on YouTube:
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Graham Chappell
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Verified order
I can't image a better size for the space I had and I am sure it will give many years of service. Aside from that, I'm not posting pics of the tunnel as I don't like showing off my bent bits ;-) |
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Stuart Fuller
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Verified order
An excellent polytunnel with exemplary build instructions supported by video guides. High quality components and looks to be very durable. Highly recommended |
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Penelope Shoebridge-McGeown
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Verified order
Great tunnel for domestic setting - sturdy and easy to assemble |
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Linda Brimacombe
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Verified order
This is not the first polytunnel I have purchased from the company. I was thrilled with the first one and so decide to have a second, smaller one. It has been easy to put together. The quality of the materials is excellent. |
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Ellie
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Verified order
Really great size for a domestic poly tunnel. It’s now standing proud in the garden and we’re just working in a path around it. Can’t wait to get growing. |
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Warrick Ashcroft
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Verified order
A Fantastic polytunnel all materials... Frame, brackets and fixings are sturdy and easy to use, great quality for a great price. |
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Derek Togher
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Verified order
Excellent |
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Graham Harris
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Verified order
Excellent product, excellent company to deal with. |
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Spans
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Verified order
Excellent tunnel. Very good instructions and videos for construction. We found the construction process pretty straight forward and we had more than enough parts to complete it. Now looking forward to an abundance of fruit/veg over the summer. |
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Mr Paterson
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Verified order
great instructions, loads of video help if needed. great service. |
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Lindsay Simpson
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Verified order
Happy with everything excellent!! |
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Mr Ed Maclaren
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Verified order
Excellent thus far |
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Robert Davies
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Verified order
I'm giving a 4 star as I've only taken delivery as yet and what I've seen looks fine. When lockdown eases one of my first tasks will be to erect this polytunnel after which I'll be in a better position to give some proper feedback. |
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JulieB
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Verified order
Component parts look good. The manual recommends putting the tunnel up in warm weather so the plastic stretches. Delaying the erection until weather warms up a bit. |
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Ian Hawley
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Verified order
Excellent value and quality |
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kristin reed
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Verified order
A great size for the allotment plot. Feels spacious enough inside with a path down the middle. |
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Matt Duffy
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Verified order
Excellent quality |
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Elizabeth Youssef
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Verified order
Top class customer service.Any problems quickly solved.Good quality product,Value for money. |
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Struan
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Verified order
Fairly easy to build and great instructions! |
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Alyson
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Verified order
What a wonderful experience.. easy, clear and perfect for the newbie!!! The poly tunnel is not erected just yet.. but I ve no concerns as there seems to be a lot of after sales support.. thanks guys |
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John McCulloch
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Verified order
Excellent product, though some of the instructions are a bit vague and some of the diagrams are a little too small. Over all we have managed to construct most of it so far. We are still to install the second door, the aluminium rails and the polythene. We will get there eventually. |
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Rob at Lustleigh
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Verified order
Very good item. Not hard to build as long as you ensure you understand the process so read the instructions, watch the videos and then lay the parts out. Ours went up without any issues and went from a empty field to the tunnel with raised beds growing seeds within a week. |
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graham alexander
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Verified order
Instructions challenging for a couple of things but overall it is a great product and the service department was great. |
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Gary Ferguson
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Verified order
Excellent quality very happy with the product. |
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michael pipe
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Verified order
had no problem putting it together it stood up to the bad weather over the weekend very please with it |
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Jennifer Crowe
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Verified order
Really good quality. |
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Mark Owen
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Verified order
Really pleased with this, excellent quality polytunnel, perfect size for what I wanted, have not had chance too start growing yet, but am looking forward to many years use. |
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Rosemary Trick
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Verified order
Good size ideal for my allotment. Very durable and withstands the winds. Warm to sit in on winter days! |
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William legore
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Verified order
Very nice tunnel |
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melanie pursglove
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Verified order
Quality product from a great supplier |
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melanie pursglove
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Verified order
First class build quality. First Tunnels are an excellent company to deal with and very helpful. Not a quick construction but a very solid item. Very comprehensive instructions and videos available plus telephone help if needed. Highly recommended |
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Heather Hodgson
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Verified order
Well made polytonnel keeps everything warm |
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Brian Samson
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Verified order
Some instructions slightly incomplete |
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stephen richards
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Verified order
Easy to put up good instructions managed alone but easier with 2 probably |
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Colin Barber
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Verified order
Fantastic service very good product |
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Welcome Design and Build
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Verified order
Total quality difference to my cheaper tunnel. Very highly recommend |
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Peter Moneypenny
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Verified order
Superb product and delivered within 5 working days. Great product and well labelled and packaged. Will recommend to all. |
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Mrs J S from Cornwall
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Verified order
A quality product at a good price. |
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Carole D'Arcy
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Verified order
Whilst the Polytunnel is clearly excellent quality, do not attempt to construct it unless you have 3 or 4 fit, able and very capable people to help you. We are fairly elderly and it nearly broke us! |
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Christine Mark
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Verified order
The poly tunnel has already transformed our lives. It is a wonderful product. If only we had more level ground we would have more.... |
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Hannah Hill
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Verified order
Good solid construction - looks nice too. |
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gordon
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Verified order
Good strong materials. Easy to follow instructions given. |
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Mr Mathew Teale
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Verified order
Good service. Very prompt delivery. |
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Tommy Johnston
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Verified order
Great product. Printed instructions could be a bit clearer but the online videos are great! |
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Andrea Grealy
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Verified order
All parcels arrived, very well packed with all small parts carefully packed and labelled. The online video tutorials are excellent and the instruction booklet is very well laid out |
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Sara
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Verified order
I had helpful advice when I emailed to help me choose the right configuration for me. Delivery was speedy. Everything arrived well packaged. Most of the items (aside from the wooden parts) were clearly labelled and described in the instructions. Plenty more nails than required (useful when heads get knocked off!) The instructions are reasonably clear, but the videos are really useful for seeing exactly what you need to do. The self tapping screws took upwards of 10 mins each to fix and the one day build time assumes you're fit, have nothing else to do all day, and have probably built at least one other polytunnel. But it's a sturdy and well constructed item, and I think very good value. Really looking forward to years of extending the growing season at my allotment! |
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Geoff Allen
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Verified order
I cna't add anything to an excellent product and well made. |
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Stuart Walter
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Verified order
Just as described and built in a weekend |
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Pauline
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Verified order
Good quality product. Delayed in getting the tunnel up due to late spring and rain. We started this weekend and so far all good with excellent booklet |
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Mrs Pauline Willgoose
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Verified order
A great polytunnel, clear and concise instructions, it took me a little longer than most people but I-am a lady in my 70s ! Delighted with it |
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Dennis Morton
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Verified order
Big enough for the space that I had |
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Dr
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Verified order
excellent value for money. would not hesitate to recommend the company . the team of staff are helpful and only to willing to help you keep up the good work and would buy another if I had the space |
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Christopher Roberts
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Verified order
The product will only be evaluated properly when it is successful during one growing season. However most pleased with delivery,parts&build instructions.Must admit 2 men build in one day, was this one man(75 years old) target I missed spectacularly!! Completed the base poles insertion in one day,the rest was more time to complete than I would admit to in a court of law. |
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keith robertson
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Verified order
only one small niggle - would be the gaps around the two doors (back and front), going to cause difficulties in the cold weather................but otherwise great. |
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Jamie Cooper
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Verified order
Easy to install does what it says on the tin |
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Rachel
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Verified order
Very difficult to install. |
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PJ May
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Verified order
Most people only build one poly tunnel for themselves in their life time. First tunnels supply the support info, manual, videos and telephone back -up that is only just second best to them actually build the bloomin' thing for you! Everything arrives logged and itemised and all you need, apart from the tools, is there down to the last nut and washer. Following the instructions step by step could be done by a simple robot. The only problems occur when you think you might have a better way of doing things! It's like the old joke about the most dangerous nut in a car is the one behind the steering wheel. |
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michael kelly
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Verified order
This is my second from first tunnels and it's even better - it's the service that counts. |
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Stephen Brookman
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Verified order
Excellent quality. Robust materials. Easy assembly. Comprehensive instructions. Very good buy. |
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ANNE JACKSON-WILD
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Verified order
Review of tunnel under previous heading very satisfied |
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vicky trotter
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Verified order
Fab . Good quality. Gone for super therm poly sheet as I think it's worth spending that bit more on it |
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Anne-Marie MacGregor
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Verified order
Almost finished putting this up so haven't had a chance to try it out. Seems smaller than I imagined, but sure it will be fine. Could possibly have done with more P-clips - we ordered an extra 12, but then we possibly have more gales here in Orkney than on the mainland. |
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Mr Gibson
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Verified order
A good quality Product which was erected by me over 4 days |
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Wendy Hammond
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Verified order
Brilliant so easy to put together |
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Dave Hamilton
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Verified order
Still early days yet but the polytunnel is excellent and feels very sturdy. |
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Frances McNeill
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Verified order
Great polytunnel only down side is it took 3wks for it to be completely delivered so had to wait to erect it other than that a fantastic buy |
We supply Timber Hinged Doors at each end, Anti Hot Spot Tape, Timber Base Rails and of course the Framework to support our 200 micron Super Therm Polythene cover. These options are pre-selected below, but can be amended to suit your needs.
You will be required to secure the foundations into concrete, alternative methods of securing the polytunnel can be selected, eliminating the requirement of concrete – see ‘Polytunnel Foundation’ section.
Select the options below in order to configure your Polytunnel and when you’re happy, press "Add to basket"
Your first big decision when choosing a Polytunnel is almost always..."What size is ideal?". But there's other important factors to take into consideration..."What type of cover do I want?". It might not sound like something to give a lot of thought to, but the cover you choose will affect your day-to-day Polytunnel management, what and how you grow. We have 4 options to choose from...
Our most popular polythene cover incorporates an additive that increases its Thermic efficiency, yet still retains 90% light transmission. In simple terms the polythene helps trap and preserve higher temperatures inside the structures for much longer - in heated structures, a 15-20% fuel savings can be achieved. A beneficial side effect of this added additive is that light entering the polytunnel is diffused - scattering light evenly throughout the structure. This UV stabilised film is 200 microns (800 Gauge) and is supplied with a five year guarantee.
FOR USE WITH All crops where heat is important such as bedding/annual plants, propagation houses & over wintered vegetable production.
Our polythene is exclusively sourced from Sotrafa in Spain, the world's biggest producer of horticultural film with an enviable reputation for quality thanks to exhaustive testing in the demanding weather conditions of Almeria.
First Tunnels are the sole distributor of Sotrafa products in the UK, and we are proud to work with the global leader to deliver the best possible products for our customers. UK suppliers make cheaper alternatives, but the quality simply doesn't compare.
Although guaranteed for 7 years against its biggest threat of sunlight degradation, when fitted correctly, it is not uncommon to hear our polythene covers have lasted in excess of 10 years.
View the terms of the Guarantee here.
Sunlight is the biggest enemy of polythene. While it's essential for the wellbeing of whatever you're growing, it also 'kills' polythene in much the same way you can find old discarded crisp packets lose their colour and become very brittle. First Tunnels polythene covers are developed and tested in the extreme conditions to give optimum performance and are UV stabilised to prevent the polythene from breaking down prematurely.
What is a KLy?
A Kilo-Langley is the measure of Solar energy radiated in 1 year. It varies from a minimum of 60 KLy in the Polar regions to 120 KLy in warm regions, and to a maximum of 200 KLy in the African desert. Southern Spain receives about 140 KLy whereas the UK receives about half of that, just 78KLy.
Our Super Therm polythene is 800 gauge/200 micron and made up of 3 layers for outstanding strength and performance.
We use a 3 layer polythene made of exceptional quality material, which has a hugely beneficial thermal effect.
The common misconception about polythene is the more layers, the better the product. Unfortunately this isn't true. More layers simply hide poor quality films, which are sandwiched inside a very average inner and outer skin. The result of these multi-layer (often called 5 or 6 layer) films is a noticeably poorer all-round performance - the thermal effect is significantly decreased.
Total Transmission of Visible Light
The amount of available light entering the polytunnel through the film. Measured as a percentage of total light.
Super Therm = 95%
Diffusion
The scattering of direct light entering the polytunnel ensuring no shadows, so all plants receive equal light. Measured as a percentage of total light.
Super Therm = 30%
Thermal Effect
A pocket of additives within the layers of the film that ensure and maintain a stable and optimum temperature within the polytunnel, especially during the night when it is colder.
Super Therm = 85%
Strength at Break
The load on a tested sample when it breaks. This is expressed in Pascals or MPa.
Super Therm = MD24/TD23
Elongation at Break
The strain on a tested sample when it stretches. This is also expressed in Pascals or MPa.
Super Therm = MD920/TD920
Creep
As the weather changes becoming hotter or colder, so the Polythene expands and contracts. Creep is the terms used to express this.
Super Therm = 5
Dart Test
A test to measure the impact strength on a test piece of plastic, using a weighted falling 'dart'.
Super Therm = 450
This specialist film reduces light transmission to 65%, and ultimately the temperature inside the structure. This film is most useful where sun scorch is a problem for growers. It is also suitable for animal husbandry applications and other stock and storage houses where a great build up of heat is not ideal. This UV stabilised film is 180 microns (720 Gauge) and is supplied with a five year guarantee.
FOR USE WITH Animal Husbandry structures and those plants that would normally grow under a shade canopy.
Our polythene is exclusively sourced from Sotrafa in Spain, the world's biggest producer of horticultural film with an enviable reputation for quality thanks to exhaustive testing in the demanding weather conditions of Almeria.
First Tunnels are the sole distributor of Sotrafa products in the UK, and we are proud to work with the global leader to deliver the best possible products for our customers. UK suppliers make cheaper alternatives, but the quality simply doesn't compare.
Although guaranteed for 5 years against its biggest threat of sunlight degradation, when fitted correctly, it is not uncommon to hear our polythene covers have lasted in excess of 10 years.
View the terms of the Guarantee here.
Sunlight is the biggest enemy of polythene. While it's essential for the wellbeing of whatever you're growing, it also 'kills' polythene in much the same way you can find old discarded crisp packets lose their colour and become very brittle. First Tunnels polythene covers are developed and tested in the extreme conditions to give optimum performance and are UV stabilised to prevent the polythene from breaking down prematurely.
What is a KLy?
A Kilo-Langley is the measure of Solar energy radiated in 1 year. It varies from a minimum of 60 KLy in the Polar regions to 120 KLy in warm regions, and to a maximum of 200 KLy in the African desert. Southern Spain receives about 140 KLy whereas the UK receives about half of that, just 78KLy.
Our Smart White polythene is 720 gauge/180 micron and made up of 3 layers for outstanding strength and performance.
Total Transmission of Visible Light
The amount of available light entering the polytunnel through the film. Measured as a percentage of total light.
Smart White = 65%
Diffusion
The scattering of direct light entering the polytunnel ensuring no shadows, so all plants receive equal light. Measured as a percentage of total light.
Smart White = N/A
Thermal Effect
A pocket of additives within the layers of the film that ensure and maintain a stable and optimum temperature within the polytunnel, especially during the night when it is colder.
Smart White = N/A
Strength at Break
The load on a tested sample when it breaks. This is expressed in Pascals or MPa.
Smart White = MD23/TD22
Elongation at Break
The strain on a tested sample when it stretches. This is also expressed in Pascals or MPa.
Smart White = MD630/TD770
Creep
As the weather changes becoming hotter or colder, so the Polythene expands and contracts. Creep is the terms used to express this.
Smart White = 5
Dart Test
A test to measure the impact strength on a test piece of plastic, using a weighted falling 'dart'.
Smart White = 700
This green net incorporates durable flat tape threads and double lockstitch tearproof technology and is used as a windbreak or shade product to protect those hardier and specialists plants. This net has proven its durability in the toughest of conditions and also provides excellent protection against insect and birds. 50% density.
Tildenet is now considered to be one of the major brands of netting and textile manufacturers in the world. Exporting to over 100 countries, providing an extensive range of products for markets such as construction, sport and horticulture. Tildernet supply and manufacture extruded nets and meshes for all kinds of applications.
We have five options available. Foundation Tubes can be driven into the ground (if the polythene is to be trenched) alternatively you can use Anchor Plates. The Screw Anchor can be used if ground conditions are suitable. If you have a solid base of concrete or timber then Base Plates will be required.
We have three options available. The Trench method requires a trench digging all around the perimeter of the tunnel approx. 30cm wide and no less than 40cm deep. Quicker and easier than trenching the cover, are Base Rails, which are available in Timber or Aluminium versions.
We have two options available. Crop Bars are attached to every hoop apart from the first and last, Twin Support Brace runs down the full length of the tunnel, either side of the central ridge, both are ideal for hanging baskets, suspending canes/nets & crops.
We have three options available. Side Ventilation is a fixed rail (Timber or Aluminium) underneath which, is fixed a net windbreak, allowing ventilation and air flow. In addition we also have Timber Side Ventilation & Screen, which allows the net to be covered through the use of a screen, which can be lowered/raised, helping control temperature and air flow. Please note, the Screen is not compatible with Aluminium. All options available, for one or both sides.
Ground Cover inhibits the growth of annoying weeds. Acting as an excellent sub-base for use with bark, mulch or gravel. Ground Cover provides total floor coverage, supplied with metal staples.
Staging introduces a work surface at the ideal height of 75cm, significantly adding growing space. Complete with brackets, allowing you to attach a worktop (not supplied) of your choice.
Polythene Care Kit contains 1 roll of 4 inch repair tape and a 2.5 litre container of Algon Organic.
Overhead Irrigation comprises a water pipe suspended below the central ridge. Supplied with a header pipe, down tubes, sprinklers, inline tap, pressure regulator and hose connector. This complete kit is ready to go, just connect a hose and you’ll be amazed how quickly it will pay for itself in terms of time, money and improved productivity.
Automatic Overhead Irrigation is supplied with the added advantage of a weather resistant, battery operated hose end water timer. Essential for those days when you just can’t be there to operate the system manually.
All Polytunnels supplied come complete with two doors. We have hinged and sliding door options...
The top panel is covered in Shade Net to allow ventilation whilst the lower half is covered with polythene to prevent low level draughts.
The Outer Door Frame is 75mm x 47mm, whereas the Inner Door is 50mm x 50mm. All timber used is FSC® certified.
We also offer a DIY option...make your own doors and end frames. If you prefer to build your own bespoke doors - you can exclude the doors and timber end frames and receive a discount.
All door panels are covered with polythene, ventilation is easily controlled as you can slide the doors open to leave any gap of your choice. Sliding doors sit securely on the doorframe, flush to the polytunnel, and out of harm's way.
The Outer Door Frame is 75mm x 47mm, whereas the Inner Door is 50mm x 50mm. All timber used is FSC® certified.
We also offer a DIY option...make your own doors and end frames. If you prefer to build your own bespoke doors - you can exclude the doors and timber end frames and receive a discount.
When you buy one of our Polytunnels you will receive a Free Polytunnel Lucky Bag, consisting of the following:
A best selling Polytunnel book by Andy McKee and Mark Gatter.
Crop wheel, a wealth of growing information...when to sow, grow, harvest and a really useful measuring device too.
Tomato seeds, specially selected to help you get your polytunnel growing...they taste yummy too.
Polytunnel Growing Guide, will take you through a whole 12 months of activity in your polytunnel.
At First Tunnels, we really like to reward our customers. Every time you buy a commercial polytunnel or a domestic polytunnel from us, we will offer you great bonus savings based on the value of the goods you are buying. Of course we want you to choose us, for all your polytunnel needs – from the basic structures to all the add-ons that make life just that little bit easier. But with this bonus save scheme, what is good for us is also good for you. The more you buy from us, the greater the discount you will receive on the items you have bought.
There is no need to get out your calculator to work out how much you can save – an intelligent basket system will calculate the savings that will apply on the goods you have chosen while you shop – doing the hard work so you don't have to. If you have almost spent enough to qualify for our great bonus save, you will be informed and will have the option of including another small, useful item in your order and making even bigger savings.
Items such as base rails, sliding doors, crop bars and staging can all improve your polytunnel experience – purchasing them alongside your polytunnel can now help you save money too!
No. When we tell you that you can get great savings, that is what you will get. Our prices are already fair and competitive and these discounts mean even better value for money on our great polytunnels and polytunnel related products.
All you need to know is that bonus savings can only be made when one of our commercial polytunnels or domestic polytunnels, however large or small, is included in your purchase.
No matter whether you are buying a small polytunnel for your garden or allotment or a far larger commercial polytunnel for your business, smallholding or farm, you make great savings of up to 20% on your purchase!
Unfortunately, we cannot offer savings on accessories and polythene covers ordered separately, if a Polytunnel is ordered then there is no limit as to what you can order and save.
