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Great in communication. Attentive. Concrete base layer needed and link to him enabled him to do it. Lean to greenhouse efficiently assembled. Highly recommended
About Our 6x4 Greenhouses
A 6x4 is the greenhouse most people should start with. It gives you about 2.5 square metres inside, enough for a staging run down one side and grow bags down the other, yet it tucks into a corner most gardens can spare. We stock 47 of them across Vitavia, Elite, Palram Canopia and Swallow, from £344 to £3,283.
Your first decision is glazing. Polycarbonate is light, holds heat, and will not smash, which makes it the safe pick for a windy plot or a garden with children. Horticultural glass is the cheapest and gives the clearest light. Toughened glass is the safe-but-clear middle ground. If you want a bigger footprint, step up to our 6x6 greenhouses; for less, see the 4x4 range.
Why We Chose This Range
"A 6x4 is the size I fit more than any other, so I am fussy about which ones we stock. The Vitavia Venus is the one I hand most first-time buyers: it goes together cleanly, the glazing clips actually hold, and parts are easy to get years later. If money is tight the Palram Mythos in polycarbonate is genuinely good for the price. Spend more and the Swallow Kingfisher is a different thing altogether, a timber greenhouse you hand down."
— Matt, Founder of Greenhouse Stores💡 Tip: Order the right base kit with the greenhouse. A 6x4 wants a level, square base before the frame goes up, and retro-fitting one under an assembled greenhouse is a miserable job.
🔧 Matt's Installation Tip: Anchor against the wind
A 6x4 is light enough to move in a gale before it is loaded with pots. Bolt it down to the base on every corner, not just two, and add the diagonal roof bracing if the kit includes it. We have been called out to more storm-damaged greenhouses that were never properly anchored than ones that failed on their own.
Matt's Pick: Vitavia Venus 2500 6x4
Best For: A reliable first greenhouse that you will not outgrow in a year.
Why I Recommend It: It is the easiest 6x4 to build well, spares are easy to source, and it takes horticultural, toughened, or polycarbonate glazing so you can match it to your plot.
Price: from £395
6x4 greenhouse glazing compared
| Glazing | Best for | Watch out for |
|---|---|---|
| Horticultural glass | Clearest light, lowest price | Thin panes, not child-safe |
| Polycarbonate ⭐ Matt's Pick for windy plots | Warmth, safety, exposed gardens | Slightly less clear than glass |
| Toughened glass | Clear light plus safety | Costs more than horticultural |
Frequently Asked Questions
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How much space do I need for a 6x4 greenhouse?
Allow a level patch about 6ft by 4ft, plus room to walk around it. The frame measures close to its name, but a base kit adds a few centimetres. Leave a gap behind it so you can clean the glass and reach the vents.
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What can I grow in a 6x4 greenhouse?
Plenty for a household. A 6x4 holds two grow bags of tomatoes down one side with staging for seedlings, herbs and cuttings opposite. It is enough to raise your own bedding plants and keep a steady crop of salad going through summer.
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Do I need a base for a 6x4 greenhouse?
Yes, every 6x4 needs a firm, level base. A manufacturer base kit on slabs or concrete is the usual route. The frame relies on that base being square, so it is worth getting right before the greenhouse goes up.
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Which glazing is best for a 6x4 greenhouse?
Polycarbonate suits most gardens. It holds heat, will not shatter, and copes with wind. Choose horticultural glass for the clearest, cheapest light, or toughened glass if you want glass clarity with added safety near a path or play area.
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Can I build a 6x4 greenhouse myself?
Yes, most people manage it over a weekend. The aluminium kits bolt together with basic tools and two pairs of hands. If you would rather not, we can arrange installation, and Swallow timber models include it free south of Glasgow.