How to choose a walk in polytunnel
Updated: 22 October 2026
Every amazon.co.uk listing is calling itself a polytunnel. A walk in polytunnel buying guide only helps if it puts type and site before the star line. A 45 cm cloche, a shelf growhouse and a 6–12 m² soil tent are not the same tool. The nine listings, with prices in GBP, are on the [polytunnel comparison](/hub/garden-supplies/polytunnel). Peter F. compared those listings and public UK notes, and did not run a lab test. A qualifying purchase can earn us a commission at no extra cost to you.
Every amazon.co.uk listing is calling itself a polytunnel. A walk in polytunnel buying guide only helps if it puts type and site before the star line.
Every amazon.co.uk listing is calling itself a polytunnel. A walk in polytunnel buying guide only helps if it puts type and site before the star line. A 45 cm cloche, a shelf growhouse and a 6–12 m² soil tent are not the same tool. The nine listings, with prices in GBP, are on the polytunnel comparison. Peter F. compared those listings and public UK notes, and did not run a lab test. A qualifying purchase can earn us a commission at no extra cost to you.
Our top picks
| Badge | Product | Type | Stated size | Cover line | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  VOUNOT VOUNOT with four shelves | Shelf growhouse | 143 × 215 × 195 cm | 135 g/m² PE | 8.9 | about £69.99 | View offer |
| Best value |  VOUNOT VOUNOT 3 × 2 × 2 m | Walk-in soil | 3 × 2 × 2 m | 140 g/m² PE | 8.2 | about £50.49 | View offer |
 Heekcaa Heekcaa mini tunnel, 122 cm | Low tunnel | 122 × 45 × 45 cm | Clear PE, weight not stated | 0.0 | about £16.99 | View offer |
On this page
Three different tools
Start with what you will grow under, not with who has the most reviews. The Heekcaa mini tunnel is 122 × 45 × 45 cm at about £16.99. You push wire hoops into soil and leave the ends open for air. It is a row cover for seedlings and low crops. It is not a walk-in, and the listing has no star line, so there is nothing honest to rank against a 2 m tent. The VOUNOT shelf growhouse (about 143 × 215 × 195 cm, about £69.99) is the other non-bed option in this set. Four removable shelves are rated 10 kg each and the cover is printed at 135 g/m². That card is for pots and trays, not a 12 m² soil house. Everything else kept here is a walk-in soil tunnel about 2 m high. Walk-in shelf prices in this capture run from about £50.49 to about £94.99. Sorting those rows by stars alone mixes a cloche with no reviews, a patio tent with its own 4.2 from 1,635, and three VOUNOT sizes that share one 3.7 from 5,410 block. Choose the type first.
Size, access, and the numbers that disagree
Leave room to walk around the frame and open the door. Premier Polytunnels’ small-garden widths of about 1.83–2.44 m are a planning band, not a fit promise. Several cards print two sizes. The white Outsunny is 2.5 × 2 × 2 m on the item line and 2.45 m long in one bullet. The large green Outsunny is titled 6 × 3 m and measured 5.95 × 3 × 2 m in a bullet. The green 3 × 2 × 2 m Outsunny item line is 2.98 × 1.96 × 1.98 m. Do not average those figures. Pick the more cautious number for siting, or measure the live listing before you dig. Pipe diameter is printed on the 4 × 3 m VOUNOT (19 mm) and missing on its sister sizes. The Ohuhu material field says plastic for the frame. If the plants are already in the ground, read the skirt on the how to anchor a polytunnel page before you order.
Rules before you order a 2 m frame
A 2 m hoop can still fail a planning test even when the bed fits. In England, Planning Portal Class E covers many householder outbuildings and names greenhouses. It does not name polytunnel as a magic exemption. Height limits, the 50 per cent garden-area rule and the boundary distance sit on the live Portal pages. Scotland’s Class 3A and Wales’s Class E use different distances beside the house. Scotland’s 1 m rule and Wales’s 1.5 m rule are not England’s 2 m rule. Front gardens, listed buildings and conservation areas change the answer. Farm-polytunnel paragraphs are about agricultural land, not a typical back garden. Do not paste England’s wording onto a Scottish plot.
What the cover line does and does not say
Where this set prints a cover weight, take it as a listing figure, not a year guarantee. The open-ground VOUNOT sizes state 140 g/m² polyethylene. The shelf VOUNOT states 135 g/m². Other cards leave the weight unstated. None of the nine prints a specialist film-year warranty. Do not convert 140 g/m² into microns and call it a lab result. A specialist tunnel from about £705, Northern Polytunnels’ EasyBuild, is a different purchase from a £50–£95 PE tent. Stars do not repair a missing film life. RHS guidance frames polythene tunnels as useful for summer crops such as tomatoes, not as a frost-free winter house. Plastic versus glass belongs on the polytunnel vs greenhouse page.
What to do next
If you want in-ground rows, match the footprint to the bed and treat a shared review count as one pool. Conditional picks, and when none of the nine is the right structure, sit on the best polytunnel UK page. On paving, look at the Ohuhu sandbag hem or the shelf tent rather than a bury-only instruction. If the sheet must stay on through winter gales, or you want a frost-free house, leave this amazon band.
Common questions
What counts as a walk-in polytunnel rather than a cloche?
A walk-in is tall enough to enter, about 2 m on these soil tents, with a door you roll or zip. The Heekcaa at 45 cm high covers a short row and stays outside that class.
Why do the title and the dimension line disagree?
Several Outsunny cards print both a rounded title and a more precise bullet or item line. Use the cautious figure for siting, or check the live page. Do not invent a midpoint.
Do I need planning permission in England, and is that the same in Scotland or Wales?
Often a small rear-garden structure falls under householder rules, but the boundary distances differ. England’s Class E is not Scotland’s Class 3A or Wales’s Class E. Ask the council if the site is tight, listed, or in a conservation area.
Is 140 g/m² the same as a specialist film with a year guarantee?
No. It is a printed cover weight on some VOUNOT cards. These nine listings do not state a specialist film-year life.
When is this amazon set the wrong buy?
When the sheet must stay on in strong wind, when you need a frost-free winter, or when you want a guaranteed film life and a base rail. Then a specialist hoop or a glazed house is the next buy, not another £60 tent.
Related pages
Sources
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.
- Planning Portal: outbuildings (retrieved 22 October 2026)
- GPDO 2015 Class E (retrieved 22 October 2026)
- mygov.scot: shed, garage or greenhouse (retrieved 22 October 2026)
- GOV.WALES: planning permission for outbuildings (retrieved 22 October 2026)
- RHS: choosing greenhouses (retrieved 22 October 2026)
- RHS: ventilation and shading (retrieved 22 October 2026)
- Northern Polytunnels: EasyBuild (retrieved 22 October 2026)
- Consumer Rights Act 2015, section 22 (retrieved 22 October 2026)