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Tomato greenhouse vs walk-in

Updated: October 2026

You are on a patio or an allotment with one grow bag, or with several pots along a fence, and amazon.co.uk prints walk-in on a polyethylene cover about 76 cm deep. A tomato greenhouse vs walk-in search also returns a structure of about 2 × 3 m and a glazed house, which are different purchases. This page keeps two footprints: a house about 100 cm long for one bag, and a cover about 200 cm long. Treat walk-in as the title on the listing. Upright standing is a separate question. Prices stay on the [tomato greenhouse comparison](/hub/raised-beds-greenhouses-and-compost/tomato-greenhouse). Footprint, anchors and cloth are on the [tomato greenhouse buying guide](/hub/raised-beds-greenhouses-and-compost/tomato-greenhouse/sub/tomato-greenhouse-buying-guide). Figures are from those amazon.co.uk listings on 16 October 2026.

You are on a patio or an allotment with one grow bag, or with several pots along a fence, and amazon.co.uk prints walk-in on a polyethylene cover about 76 cm deep.

Our top picks

VOUNOT VOUNOT tomato grow house, white, 100 cm

Best overall

VOUNOT VOUNOT tomato grow house, white, 100 cm
7.8/10about £23.49
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Ohuhu Ohuhu tomato greenhouse, white, 200 cm

Rank 2

Ohuhu Ohuhu tomato greenhouse, white, 200 cm
8.2/10about £49.99
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Outsunny Outsunny tomato greenhouse, 200 cm

Best value

Outsunny Outsunny tomato greenhouse, 200 cm
7.7/10about £27.99
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On this page
  1. 1.Two covers, not three products
  2. 2.One grow bag
  3. 3.A 200 cm cover with walk-in in the title
  4. 4.What still is not a glazed house

Two covers, not three products

This comparison is two polyethylene footprints: a house about 100 × 40–50 × 150 cm, and a cover about 200 × 76–77 cm in plan, about 168–170 cm high. Some UK guides use walk-in for a structure from about 2 × 3 m, with room to stand. For one standard bag, the narrow house is the match.

One grow bag

For one standard growing bag, use the house about 100 cm long. Prices in this set run from £14.99 to £24.99. Two plants is the Royal Horticultural Society rate for one bag. Which of these 100 cm houses fit that bag is on the tomato greenhouse grow bag page. Put the 100 cm house against a fence. Pegs belong in soil, and on paving you weight the skirt.
VOUNOT VOUNOT tomato grow house, white, 100 cm

Testsieger

VOUNOT VOUNOT tomato grow house, white, 100 cm
7.8/10about £23.49
View offer

A 200 cm cover with walk-in in the title

Choose a 200 cm cover when you have several pots and you want to step inside, and read walk-in as the wording on the listing. Outsunny is £27.99, stated as 200 × 76 × 150–168 cm, with a door 145 cm high and 120 cm wide. Most adults duck at a 145 cm door. Ohuhu white and green are both £49.99 at 200 × 77 × 170 cm, with 130 g/m² cloth and one shared 4.3 from 814 reviews. One reviewer says an adult cannot walk in upright. Use this size for several pots, and use the narrow house for one bag.

What still is not a glazed house

These polyethylene covers are less stable than a rigid greenhouse. The RHS says polythene tunnels are not usually frost-free over winter, and none of these listings states a frost-free claim. Outsunny tells you not to leave it up in high winds. If you need to stand upright through winter, buy a polytunnel or a glazed house.

Common questions

Is a 200 cm cover the same as a walk-in greenhouse?
On these amazon.co.uk listings a 200 cm cover is about 200 × 76–77 cm in plan and about 168–170 cm high. Outsunny prints the height as 150–168 cm. Shop guides that use walk-in for a structure from about 2 × 3 m mean a larger footprint, with room to stand. The word on the Outsunny, VOUNOT and Ohuhu titles does not make these covers that structure. You can step through the door. Upright walking is a separate question.
Can an adult stand up in it?
Outsunny’s door is 145 cm high and 120 cm wide, so most adults duck. The frame height of about 150–170 cm is the outside measurement, not clear headroom under a sloping cover. One Ohuhu reviewer says an adult cannot walk in upright. The depth is only about 76–77 cm, so you stay close to the cloth once you are inside. If standing upright is the requirement, these rows are the wrong product.
Which size is for one grow bag?
Use a house about 100 × 40–50 × 150 cm. In this set those covers cost £14.99 to £24.99. The depth matches one standard bag more closely than a 200 cm frame, which leaves spare floor along the length. Two plants is the Royal Horticultural Society rate for one bag. Choose the narrow house when one bag is the whole crop. Several pots that will not sit on that bag belong on the longer cover.
Which size is for several pots?
Use a cover about 200 cm long and 76–77 cm deep when the pots will not fit on one bag and you want to step inside. Outsunny at £27.99, VOUNOT at £36.99 and both Ohuhu colours at £49.99 are that length. The depth is still shallow, so a single row of pots fits better than a wide bed. Walk-in on the title is the product wording. One bag still belongs under the 100 cm house.
Why not use the VOUNOT 4.4 as proof the 200 cm house is better?
The 4.4 from about 146 reviews is the same text as the 100 cm VOUNOT house. The 200 cm listing is £36.99 at 200 × 77 × 170 cm and states 135 g/m², but the stars are not a separate test of that frame. Outsunny’s 3.9 from 554 reviews belongs to a 200 cm listing. Read a VOUNOT comment as a note on the smaller house unless the reviewer names the 2 m size.
What is the wind line on the cheaper 2 m cover?
Outsunny, at £27.99, tells you not to leave the cover up in high winds. The kit is four guy ropes and four pegs, and the cloth weight is not stated. When a gale is forecast, take it down. Pegs hold in soil, and on paving you weight the base and still follow that warning. Some Ohuhu reviewers remove a 130 g/m² cover for winter. None of these listings claims the house can stay up through a storm.

Related pages

How to put up a tomato greenhouse

Best tomato greenhouse

Tomato greenhouse

Tomato greenhouse buying guide for bags and covers

Tomato greenhouse for a grow bag holding two plants

Sources

Public UK sources from the research digest, last checked on 16 October 2026.

  1. RHS — How to grow tomatoes (retrieved 16.10.2026)
  2. RHS — Tomato blight (retrieved 16.10.2026)
  3. RHS — Choosing a greenhouse (retrieved 16.10.2026)
  4. RHS — Ventilation and shading (retrieved 16.10.2026)
  5. Planning Portal — Outbuildings (retrieved 16.10.2026)
  6. Class E, GPDO 2015 (retrieved 16.10.2026)
  7. GOV.UK — General Product Safety Regulations 2005 (retrieved 16.10.2026)
  8. National Allotment Society — Allotment laws (retrieved 16.10.2026)