About Our 6x4 Greenhouses
We stock 47 models of 6x4 greenhouse from six manufacturers, priced from £329 to £3,647. At the budget end, Palram Canopia aluminium models start under £350. Vitavia covers the mid-range between £395 and £649 with three glazing choices. For a British-made frame with integral base and 20-year warranty, the Elite range runs from £579 to £1,079. Swallow timber models sit at the top end and include free professional installation.
A 6ft-wide greenhouse gives you a full-sized sliding or hinged door. That matters when you're carrying grow bags and staging in and out. The 4ft depth keeps the total footprint under 2.5 square metres, so it fits against a fence or beside a shed on most plots. No planning permission needed.
Why We Chose This Range
"The 6x4 is our most popular size. Customers assume they need something bigger, but a well-organised 6x4 handles 12 to 15 tomato plants, a full run of seed trays, and still leaves room for a shelf of peppers. The Vitavia Venus 2500 at £395 is the one I recommend most. The Elite Craftsman costs more but it comes with an integral base that saves you £100 to £150 on a separate one. If someone rings up and says they've never owned a greenhouse before, I point them at the Venus every time."
— Matt, Founder of Greenhouse StoresTypes of 6x4 Greenhouse We Offer
Budget Aluminium (Palram Canopia)
The Mythos and Hybrid use polycarbonate glazing on aluminium frames that won't rust. Prices start at £329 with delivery in 3 to 5 working days. The Hybrid has a polycarbonate roof panel paired with crystal-clear sides. 5-year manufacturer warranty. Suited to sheltered gardens rather than exposed sites.
Mid-Range Aluminium (Vitavia)
The Venus 2500 starts at £395 in horticultural glass and is available in toughened or polycarbonate too. Frames come in silver, green, or black. The sliding door reverses to suit left or right-handed openings. 12-year frame warranty. Step up to the Apollo 2500 for a wider barn-door style entry.
Premium Aluminium (Elite)
Made in Bolton, England. The Craftsman and High Eave both come with an integral aluminium base included in the price. The High Eave gives you an extra 280 mm of headroom at the eaves. Pick from 11 frame colours. Locking doors on both models. 20-year warranty. From £579 to £1,079.
Premium Timber (Swallow)
The Kingfisher 6x4 is ThermoWood-treated redwood. No annual painting or retreatment needed. Prices start at £2,764 and that includes free professional installation by Swallow's own fitters. Toughened glass and automatic roof vents are standard. 12-year timber warranty. Allow 8 to 12 weeks for delivery.
Choosing a 6x4 Greenhouse: Quick Guide
💡 Tip: Measure your available space and subtract 150 mm on each side for access and maintenance. A 6x4 greenhouse is roughly 1,930 mm wide by 1,310 mm deep (Vitavia Venus dimensions). You need to reach the back wall to clean glass and tighten clips without climbing inside from the back.
🔧 Matt's Installation Tip: Getting the Base Right First Time
Every 6x4 greenhouse needs a level base. We recommend paving slabs on 50 mm of compacted sharp sand, levelled to within 3 mm across the full footprint. A concrete pad works too, but slabs are easier to adjust if your ground settles later. Always build the base before your greenhouse arrives.
If you're fitting an Elite Craftsman, the integral aluminium base bolts directly to the slabs. For Vitavia models, buy the optional steel base plinth (around £80) to raise the frame 60 mm off the ground and stop damp creeping into the lowest glass panels. Read our full paving slab base guide here.
Under £350 gets you a Palram polycarbonate model. The Vitavia range sits between £395 and £649 and covers all three glazing types. Spend £579 to £1,079 on an Elite and you get a British-made frame with integral base and a 20-year warranty. Swallow timber models start above £2,700 and include free installation.
Ventilation matters more than size. A single roof vent is not enough in summer. Look for models with a louvre side vent or plan to add one. Integrated gutters are worth having if you collect rainwater. Toughened glass costs £50 to £150 more than horticultural but it's four times stronger and doesn't shatter into shards.
Frequently Asked Questions
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How much does a 6x4 greenhouse cost?
6x4 greenhouses at Greenhouse Stores cost £329 to £3,647. Palram Canopia polycarbonate models start at £329. Vitavia aluminium with horticultural glass starts at £395. Elite British-made models with integral bases run from £579. Swallow timber greenhouses with free installation start at £2,764. All prices include free UK mainland delivery.
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What can I grow in a 6x4 greenhouse?
A 6x4 greenhouse fits 12 to 15 tomato plants comfortably. You can also grow cucumbers trained vertically, peppers, chillies, and aubergines. Use staging on one side for seed trays in spring. Lettuce, rocket, and spinach grow well in autumn and early spring without heating. A heated propagator extends your growing season by 6 to 8 weeks.
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Is a 6x4 greenhouse big enough?
Yes, for most beginners and small garden growers. The 2.5 square metre floor space holds a full season's tomatoes, a staging shelf of seedlings, and room to work. If you plan to overwinter large plants or need a potting bench inside, consider stepping up to a 6x6 or 6x8 greenhouse.
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What base do I need for a 6x4 greenhouse?
A flat, level base of paving slabs or concrete. Use 50 mm of compacted sharp sand under the slabs. Level everything to within 3 mm across the full footprint. An uneven base causes doors to jam and glass to crack under tension. Our base building guide covers the full process step by step.
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Should I choose glass or polycarbonate glazing?
Toughened glass is better for long-term performance. It transmits 90% of light versus 80% for polycarbonate. It won't yellow or cloud over time. Polycarbonate is lighter and cheaper, and it's safer if you have children nearby. But it scratches easily and loses clarity after 10 to 15 years. For a greenhouse you plan to keep, glass is the better investment.
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Do I need planning permission for a 6x4 greenhouse?
No, a 6x4 greenhouse does not need planning permission. It falls well under the 30 square metre permitted development limit for outbuildings. The maximum ridge height must stay below 2.5 metres within 2 metres of a boundary. All our 6x4 models meet this requirement. Check with your local authority only if you live in a conservation area or listed building.
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Which 6x4 greenhouse is best for beginners?
The Vitavia Venus 2500 at £395 is our top pick. It comes with a 12-year warranty, reversible sliding door, and a choice of three glazing types. Assembly takes one person around 4 to 5 hours. The Palram Canopia Hybrid at £349 is the cheapest option if budget is the main concern.