The best polytunnels, compared.
Top pick: VOUNOT with four shelves – Highest score in this set: own 4.2 from 1,635 reviews, four shelves at 10 kg, 135 g/m² cover, about £69.99. Best value: VOUNOT 3 × 2 × 2 m – Lowest walk-in price at about £50.49 for 6 m² and a stated 140 g/m² cover, if you reinforce the anchors. Updated October 2026.
A polytunnel is a frame covered in flexible polyethylene. In the UK you buy one to warm a crop, shed rain and stretch the season. You recognise a suitable one by the job. A low cover reaches seedlings. A walk-in soil tunnel lets you stand over a bed. A shelf model holds pots. Check the stated height, whether plants sit in the ground or on shelves, and whether the listing tells you to bury a skirt and take the cover off in strong wind. Cover weight counts only when the listing prints it. If weight, year life or light transmission is absent, leave it absent. An exposed plot needs longer hooks, posts or weights. Read a weather sentence such as 'not suitable for bad weather' or 'remove the cover in wind' as a limit. England, Scotland and Wales do not share one boundary height. Listed buildings, flats and ground in front of the house need a council check. Work through type, size and anchors in the [polytunnel buying guide](/hub/garden-supplies/polytunnel/sub/polytunnel-buying-guide).
A polytunnel is a frame covered in flexible polyethylene. In the UK you buy one to warm a crop, shed rain and stretch the season. You recognise a suitable one by the job. A low cover reaches seedlings.
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Personal buying guide
Question 1 of 2
Where do the plants sit?
The VOUNOT shelf growhouse is the strongest editorial score in this set at £69.99: 143 × 215 × 195 cm, four removable shelves rated 10 kg each, and a 135 g/m² PE cover. The amazon.co.uk line is 4.2 from 1,635 reviews that belong to this listing, separate from the shared 5,410 block on the open-ground VOUNOT sizes. Plug-in assembly with no tools is claimed; one reviewer finished in under 30 minutes. Mesh vents and a weighted skirt help once it is tied, yet the same file records a zip off its track, a rear seam unstitched for about 15 cm, and lift in about 15 mph wind on concrete before ropes were fitted. The weather bullet claims rain, wind, frost and snow. That line is a maker claim.
Pros
Cons
Best for: Potted trays and staging on a patio or yard when you want shelves in the box and will weigh the skirt.
Less suitable: In-ground crop rows that need a full soil walk-in, or buyers who trust the all-weather bullet without extra anchors.
Specifications
Common questions
Does it include shelves?
Yes. Four removable shelves, with a stated maximum of 10 kg each.
Do you need tools?
The listing says no. It is a plug-in frame.
How is it held down?
Four ropes, four ground anchors and 16 cable ties. The skirt is longer than the frame and the bullet says to weigh it with soil or stones.
The Ohuhu 180 × 180 × 200 cm walk-in is £59.99 with 4.1 from 1,080 amazon.co.uk reviews and a stated 3.24 m² footprint. Two zip doors and a sandbag hem you can fill with sand, soil or bottles are the practical hooks. The material field says plastic for the frame; reviewers still argue about metal bars, so keep the field wording. Praise covers roomy beginner use and labelled parts; criticism covers zips that fail, covers that break up after one season, and at least one calm-day bend. Reviews mention a thigh-high shelf the bullets do not list, and call it weak. No wind class is printed.
Pros
Cons
Best for: A smaller patio or garden walk-in when you will fill the hem, tie the ropes, and accept a plastic-framed field line.
Less suitable: Long-term cover life without a replacement sheet, or buyers who need a steel-frame specification on the card.
Specifications
Common questions
How many doors does it have?
Two zipper doors, front and back, and two side windows.
Are shelves in the specification?
No. UK reviews mention one shelf or a piece of staging. The bullets do not list shelves.
Does the listing say you need tools?
No. It says no tools, with labelled parts.
The Outsunny white 2.5 × 2 × 2 m walk-in sits at £53.99 with 4.1 from 548 amazon.co.uk reviews on its own listing line. The pack lists four stakes, four guy ropes, and a 15 cm skirt meant to be buried. One reviewer finished the build alone in about 45 minutes against a 120-minute, two-person instruction; another in Wales said it was still up almost two years after an October 2023 purchase. The same file reports poles that bend, covers that rip in light wind, and collapses even in a sheltered spot when the door is not pinned. The listing itself says it is not suitable for bad weather. One review discusses a height in feet that does not match this 2 m tunnel, so read sizes carefully.
Pros
Cons
Best for: A compact white soil tunnel on a sheltered plot when you will bury the skirt and add better pegs.
Less suitable: Exposed allotments, stormy sites, or buyers who need a printed wind class.
Specifications
Common questions
Does it have a door?
Yes. One roll-up door with a zip. The bullet also describes six windows, while the vents field says four.
What holds it down?
Four ground stakes, four guy ropes, and a 15 cm skirt the listing says to bury.
Is it sold for bad weather?
The bullet says it is not suitable for bad weather conditions.
The VOUNOT 3 × 2 × 2 m walk-in is the lowest-priced soil tunnel in this set at £50.49, with a stated 140 g/m² PE cover and six windows on 6 m². The amazon.co.uk line is 3.7 from 5,410, but that figure and the UK review text are shared with the 4 × 3 m and 3 × 3 m sizes, so it is not a sample of this size alone. Reviewers praise floor area for the money and a frame one person can build, then report a skirt too short to trench, a thin cover that flaps onto plants, and zip doors that need tying shut. Extra anchors and cover work come up often. Pipe diameter is not printed on this card.
Pros
Cons
Best for: A budget 6 m² soil bed when you will trench, reinforce anchors, and accept a shared 3.7 review line.
Less suitable: Exposed plots, buyers who need a size-specific review sample, or anyone who will not add pegs and weight.
Specifications
Common questions
Does this size state a pipe diameter?
No. 19 mm is printed on the 4 × 3 m listing, and this card leaves the diameter out.
Are the 5,410 reviews only for this size?
The listing matches the 4 × 3 m and 3 × 3 m listings on the star line and the review text. Treat them as one shared block.
How many windows does the listing state?
Six.
The VOUNOT 4 × 3 × 2 m walk-in is the largest VOUNOT soil tent here at £75.49, with 12 m², a stated 19 mm galvanised steel pipe, 140 g/m² PE, and eight mesh windows. The amazon.co.uk line is still 3.7 from 5,410 shared with the 3 × 2 m and 3 × 3 m cards, including the same UK review text. This card is the one that prints the wind warning: remove the cover in wind. Reviewers who built a large size praise floor area and a roughly two-hour solo frame job, then report a skirt too short to bury, thin cover stretch, failed zips, and frames that need timber or steel reinforcement. Every joint is a nut and bolt.
Pros
Cons
Best for: A large open-ground bed when you will trench, reinforce, and strip the cover before strong wind.
Less suitable: Set-and-forget winter use, or shoppers who treat 5,410 as a 4 × 3 m-only sample.
Specifications
Common questions
Does the listing claim it survives strong wind?
It says burying the base is required, and that you should still remove the cover when there is wind.
What pipe size is stated?
19 mm steel pipe, on this size. The 3 × 2 m card does not state a diameter.
Why is the review count the same as the smaller VOUNOT tents?
The listings share the 3.7 from 5,410 line and the same UK review text.
The VOUNOT 3 × 3 × 2 m walk-in is £78.99 for 9 m² with a stated 140 g/m² PE cover and six windows. It carries the same 3.7 from 5,410 amazon.co.uk line and the same UK review text as the 3 × 2 m and 4 × 3 m sizes. Praise in that shared block covers floor area for the money and a short instruction sheet; criticism covers a short skirt, a cover that stretches onto plants, failed zips, and a frame that moves unless you add anchors. Pipe diameter is not printed here. The wall-thickness field says 1.9 cm while the 4 × 3 m sister card says 1.9 mm. Both figures stay as printed.
Pros
Cons
Best for: A square 9 m² soil plot when you accept shared reviews and will reinforce the base.
Less suitable: Buyers who need a unique review sample or a printed pipe diameter on this ASIN.
Specifications
Common questions
What does the wall-thickness field say?
1.9 cm. The 4 × 3 m listing’s field says 1.9 mm. Both are recorded as written.
How many windows?
Six, on this card.
Is the 5,410 count unique to this size?
It matches the other two open-ground VOUNOT listings in this set, including the review text.
The Outsunny green walk-in is titled 3 × 2 × 2 m and measured 2.98 × 1.96 × 1.98 m on the item line, at £60.99 with 3.7 from 434 amazon.co.uk reviews. Four stakes and four ropes come in the box; the door is stated at 170 × 120 cm. Reviewers like screw joints over plastic T-pieces and say it stands if you add posts and bury the skirt. The listing tells you not to leave it up in heavy weather, and UK text reports covers off within days in medium wind, split door stitching, and a Scotland review that called it too weak. Vent counts disagree: six in the field, eight in the highlight.
Pros
Cons
Best for: A green 3 × 2 m class soil tunnel on a calm plot when you will bury the skirt and add corner posts.
Less suitable: Exposed Scottish or coastal sites, or buyers who refuse seasonal take-down.
Specifications
Common questions
Which size figure should you use?
The title says 3 × 2 × 2 m. The item line says 2.98 × 1.96 × 1.98 m. The door is given as 170 × 120 cm.
What is in the anchor kit?
Four guy ropes and four ground stakes. The bullet says not to leave it up in heavy weather.
How many windows are listed?
The vents field says six. The highlight says eight mesh windows.
The Outsunny about 6 × 3 × 2 m walk-in is the largest and dearest soil tunnel in this set at £94.99, with 3.5 from 478 amazon.co.uk reviews, the lowest star line here. The title says 6 × 3 m; a bullet says 5.95 × 3 × 2 m. Two extra slant rods are claimed. Reviewers call the footprint useful once standing and report four weekends of about 40 mph wind after adding 12-inch galvanised hooks bought separately. The same file describes thin poles that bend or snap, a cover too short to reach the base even after digging the frame down about 20 cm, and pegs that fail with the door open. The listing says protect from light wind and rain only, and put the cover away in heavy snow, strong wind, and heavy rain.
Pros
Cons
Best for: A large sheltered soil bed when you will buy longer hooks, reinforce joints, and strip the cover in storms.
Less suitable: Budget first tunnels, exposed sites, or buyers who need a skirt long enough to bury as supplied.
Specifications
Common questions
Which length is printed?
The title says 6 × 3 m. The bullet says 5.95 × 3 × 2 m. The item line says 6 × 3 × 2 m.
What does the listing say about wind?
It claims protection from light wind and light rain, and says to put the cover away in heavy snow, strong wind and heavy rain.
Are extra supports listed?
Yes. Two slant supporting rods.
The Heekcaa mini tunnel is a 122 × 45 × 45 cm clear polyethylene low tunnel at £16.99. You unfold the cover, push the iron-wire hoops into soil, and open the ends for air. The amazon.co.uk listing has no star line and no customer-review text, so there is no UK usage sample to confirm frost or wind claims. At 45 cm high it covers short seedlings and low crops. Patio raised-bed fit is unanswered in the bullets. Treat the weather line as a maker claim. The listing gives no review sample to check a UK season.
Pros
Cons
Best for: A short row of seedlings or low herbs where you only need a push-in cloche and accept no UK review sample.
Less suitable: Anyone wanting a walk-in polytunnel, a proven wind record, or a rated amazon.co.uk listing.
Specifications
Common questions
How high is this tunnel?
The item line says 122 cm long, 45 cm wide and 45 cm high. It is a row cover. You cannot stand inside it.
Does it need tools?
The bullet says no tools. You unfold it and push the hoops into the ground.
Is there a star rating on the listing?
No. The listing has no customer-review line and no review text.
Nine amazon.co.uk listings were scored from shelf prices, star lines and UK review themes captured on 19 October 2026. This is a listing comparison, with no laboratory wind test. A shared 3.7 from 5,410 on three open-ground VOUNOT sizes is one star component on each card. A missing star line scores 0 on that part, which is a gap in the evidence. The top pick is the highest total. Best value is the lowest walk-in price against a usable soil footprint. The weights below sum to 100.
Amazon evidence
30%Stars divided by 5, times 30, then rounded. A listing with no review line scores 0 on this part. The shared 5,410-line block on the three open-ground VOUNOT sizes uses the same star component on each card.
Listing fit
35%Clear type, stated size, cover weight or thickness where printed, frame, door, vents, anchors or skirt, and an honest weather limit. A missing pipe diameter or a conflicting size line loses points. A weather claim the listing itself withdraws scores lower than a cautious limit.
Review outcome
20%UK review themes that name assembly time, wind lift, zip failure, skirt burial or season length score higher than a star average alone. A missing review text cannot fill this band.
Value
15%Shelf price in GBP against footprint, printed cover weight, shelves in the box, and how usable the anchor kit looks on the card.
Choose the type before the star line. A low cover, a shelf growhouse and a walk-in soil tent are different tools. Then read the skirt, the weather sentence and any printed cover weight. The nine rows are amazon.co.uk listings dated 19 October 2026. There is no laboratory wind test.
A polytunnel is a frame with a flexible polyethylene cover. In a UK garden or on an allotment you use it to warm a crop, shed rain and stretch the season. A glazed greenhouse is a different structure, and a farm building is a different permission question. The listings in this class are low tunnels you cannot stand in, walk-in tents about 2 m high over soil, and a shelf growhouse for pots.
A 45 cm low tunnel, a shelf growhouse and a 12 m² soil tent do different jobs. A missing star line on the low tunnel is a gap in the evidence. It is a poor reason to place that cloche above or below a walk-in.
The 3 × 2 m, 3 × 3 m and 4 × 3 m VOUNOT soil tents share one 3.7 from 5,410 line and the same review text. That is one pool. The shelf growhouse has its own 4.2 from 1,635.
Four short stakes are a thin kit on an open plot. If the card says the cover comes off in wind, or that the tent is unsuitable for bad weather, that sentence is the limit. A UV word on these listings is not a stated year life.
Match the tool before you sort by stars. A cloche about 45 cm high covers short seedlings. A walk-in about 2 m high is for standing over a soil bed. A shelf growhouse is for pots and trays, with a stated load per shelf when the listing prints one. A patio tent of about 3 m², a 6 m² bed and a 12 m² bed are different purchases, and a star line does not turn one into the other. Read the size line twice.
Burial is the stability method only if you can trench a skirt. The usual box is a handful of short stakes and guy ropes. UK reviews on open plots add longer hooks, posts or weights. A skirt the reviews call too short to bury is a real fault even when the bullet says to trench it. On paving, a sandbag hem you can fill, or a skirt you can weigh with soil or stones, is the same idea in a form that suits a hard surface. Read the weather sentence as a limit.
Three typical situations, each with a recommendation from this comparison.
You want trays out of the rain and you can weigh a skirt on paving. The VOUNOT shelf growhouse is about £69.99, 143 × 215 × 195 cm, with four shelves at 10 kg and 4.2 from 1,635 reviews on this listing. Tie the ropes before you trust the weather bullet.
You can trench a skirt and you will add anchors. The VOUNOT 3 × 2 × 2 m is about £50.49, with a stated 140 g/m² cover on 6 m². The 3.7 from 5,410 line is shared with two other sizes. Allotment use still needs written site permission.
You want a smaller white walk-in and you will bury a skirt. The Outsunny 2.5 × 2 × 2 m is about £53.99, with 4.1 from 548 reviews, four stakes, four ropes and a 15 cm skirt. The listing says it is not suitable for bad weather.
The top pick is the VOUNOT shelf growhouse at about £69.99. It has the highest score in this set: four shelves rated 10 kg each, a 135 g/m² cover, and 4.2 from 1,635 amazon.co.uk reviews on this listing. UK reviews include a zip fault and lift in about 15 mph wind before the ropes were on. It is for pots. The best value is the VOUNOT 3 × 2 × 2 m at about £50.49, the lowest walk-in price here, with a stated 140 g/m² cover on 6 m². Its 3.7 from 5,410 is shared with the 4 × 3 m and 3 × 3 m cards. Reviews praise the floor area, then report a short skirt and zips that need tying. Reinforce the anchors if you buy it.
VOUNOT with four shelves
Highest score in this set: own 4.2 from 1,635 reviews, four shelves at 10 kg, 135 g/m² cover, about £69.99.
VOUNOT 3 × 2 × 2 m
Lowest walk-in price at about £50.49 for 6 m² and a stated 140 g/m² cover, if you reinforce the anchors.
Editorial
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Guides on what to look for, how to use a product, and common mistakes.
Public UK sources for this comparison. Prices, stars and review counts are the amazon.co.uk listings in this set, captured 19 October 2026. Page updated 22 October 2026.
Expert source (DIY & tools): Lee Burkhill (Garden Ninja) (external profile) – public expert commentary used as a research source, not as a contributor to our pages.
This page contains affiliate links to amazon.co.uk. If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts are from the amazon.co.uk listings. This is not a laboratory test.
