About Our 8x10 Greenhouses
We stock 41 products in the 8x10 greenhouse size from four manufacturers, priced from £845 to £8,847. Vitavia aluminium greenhouses with glass glazing start at £845 for the Neptune 8300. The Vitavia Jupiter 8300 at £1,049 adds double sliding doors and four roof vents. British-made Elite models run from £1,099 with integral bases and locking doors. Every Elite carries a 20-year warranty. Belgian-made Janssens greenhouses start at £2,875 with 4 mm toughened glass and rubber gasket glazing. Swallow timber models begin at £4,357 with free professional installation.
An 8x10 greenhouse has 8.3 square metres of growing space. That is 66% more than an 8x6 for an extra 4 ft of depth. The 8 ft width is the key difference from the 6x10. It lets you run staging down both sides and still walk comfortably through the middle. Most 8x10 models come with double doors as standard, making wheelbarrow access straightforward.
Why We Rate the 8x10
"The 8x10 is the sweet spot for serious growers. You get that extra 2 ft of width over a 6x10, which changes the layout completely. Staging on both sides with a clear central path. There is room for grow bags underneath the staging too. Most of the models in this size come with double doors too, so you can wheel a barrow straight in without clipping the frame. The Vitavia Neptune at £845 is the cheapest way to get 8.3 square metres of growing space. If you want something that will last 20 years without worry, the Elite Belmont at £1,099 is where I would start."
— Matt, Founder of Greenhouse StoresTypes of 8x10 Greenhouse We Offer
Entry-Level Aluminium (Vitavia)
The Neptune 8300 at £845 is the cheapest glass 8x10 we sell. It comes with two roof vents, a single sliding door, and integral gutters with a free downpipe kit. The Jupiter 8300 (from £1,049) upgrades to double doors and four roof vents. The Phoenix 8300 (from £1,225) adds an integrated base plinth and low-threshold entry. Silver, black, or green frames available. 12-year warranty across all Vitavia models.
Mid-Range British-Made (Elite)
Made in Bolton, England. The Belmont 8x10 starts at £1,099 with two roof vents and an integral base. The door locks with a key. The Thyme (from £1,859) adds Victorian-style crestings and finials with two louvre vents. At £2,259, the Titan is the strongest 8x10 we stock: Core-Vect frame with bar capping as standard. Double sliding doors give 1,150 mm of access width. 20-year warranty across the range. 12 colour options.
Premium Belgian (Janssens)
Engineered in Belgium with Qualicoat-certified powder coating. The Eos Junior at £2,875 uses rubber gasket glazing instead of clips, making it the most weather-tight aluminium greenhouse in this size. The Master (from £2,875) adds 2,010 mm eaves for full standing height at the sides. All Janssens models use 4 mm toughened glass and stainless steel fittings. 13-year warranty.
Premium Timber (Swallow)
The Raven 8x10 is handmade from ThermoWood-treated Scandinavian redwood. No painting needed. Toughened glass and four Bayliss automatic roof vents come as standard. A full length of slatted staging is included too. Prices start at £4,357 with free professional installation by Swallow's own fitters. The Rook potting shed variant (from £5,185) adds a built-in potting area with shelving. Allow 8 to 12 weeks.
8x10 Greenhouse Comparison: Key Models at a Glance
| Model | From | Frame | Glazing | Eaves (mm) | Ridge (mm) | Warranty | Best For |
|---|---|---|---|---|---|---|---|
| Vitavia Neptune 8300 | £845 | Aluminium | Glass or poly | 1,350 | 2,300 | 12 years | Budget buyers, cheapest glass 8x10 |
| Vitavia Jupiter 8300 | £1,049 | Aluminium | Glass | 1,510 | 2,300 | 12 years | Double doors, 4 roof vents |
| Vitavia Phoenix 8300 | £1,225 | Aluminium | Glass or poly | 1,510 | 2,460 | 12 years | Includes base plinth, low-threshold entry |
| Elite Belmont | £1,099 | Aluminium | Glass or poly | 1,585 | 2,475 | 20 years | British-made, 12 colours, locking door |
| Elite Thyme | £1,859 | Aluminium | Toughened glass | 1,585 | 2,480 | 20 years | Victorian styling, louvre vents, rear shelf |
| Elite Titan | £2,259 | Aluminium | Toughened glass | 1,585 | 2,475 | 20 years | Exposed sites, double doors, bar capping |
| Janssens Master | £2,875 | Aluminium | 4 mm toughened | 2,010 | 2,600 | 13 years | Tall gardeners, rubber gasket glazing |
| Swallow Raven | £4,357 | ThermoWood | Toughened glass | 1,730 | 2,660 | 12 years | Premium timber, free installation |
Buying Guide: How to Choose the Best 8x10 Greenhouse
💡 Tip: An 8x10 greenhouse needs a base roughly 2,570 mm x 3,210 mm (Vitavia) or 2,545 mm x 3,205 mm (Elite). That is 640 mm wider and 640 mm deeper than a standard 8x6 base. Measure your space carefully before ordering. You need at least 600 mm clearance around all sides for maintenance access.
🔧 Matt's Installation Tip: Building a Base for an 8x10
Use paving slabs on 50 mm of compacted sharp sand. Level to within 3 mm corner to corner. The base must be square: measure diagonally from corner to corner in both directions and check the two diagonals match to within 5 mm. An out-of-square base causes doors to jam and glass to crack under tension.
The Vitavia Neptune 8300 needs an optional steel base plinth (£95) to raise the frame off the ground. The Phoenix 8300 has one built in. All Elite models include their integral base as standard. Build the base before your greenhouse arrives. Read our full paving slab base guide here.
Under £1,100 gets you a Vitavia Neptune in glass or the Elite Belmont with its 20-year warranty. The Vitavia Jupiter at £1,049 is the cheapest model with double doors and four roof vents. The Elite Titan at £2,259 has bar capping and a Core-Vect frame built for exposed or coastal sites. Janssens models start at £2,875 with rubber gasket glazing and 4 mm toughened glass as standard. Swallow timber models start at £4,357 with free installation.
Ventilation matters more in an 8x10 than in smaller sizes. The larger volume of air needs to move efficiently on hot days. Two roof vents is the minimum for this size. The Vitavia Jupiter and Phoenix both include four. If your chosen model has only two, budget £60 to £80 for a louvre vent and fit it low on the opposite end from the door. Toughened glass costs £190 to £310 more than horticultural in this size. It is five to seven times stronger and shatters safely if hit.
Frequently Asked Questions
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How much does an 8x10 greenhouse cost?
8x10 greenhouses at Greenhouse Stores cost £845 to £8,847. The Vitavia Neptune 8300 in horticultural glass starts at £845. Elite British-made models with integral bases run from £1,099. Belgian Janssens models with 4 mm toughened glass start at £2,875. The Swallow Raven in ThermoWood costs £4,357 including free professional installation. All prices include free UK mainland delivery.
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What can I grow in an 8x10 greenhouse?
An 8x10 fits 10 to 14 cordon tomato plants comfortably. Run grow bags down both sides with staging above for seed trays. The 10 ft depth gives room for cucumbers trained vertically at the back and peppers in pots along the staging. Keep a separate propagation zone near the door. You can also overwinter tender plants at one end.
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Is an 8x10 greenhouse worth the upgrade from an 8x6?
Yes, the 8x10 gives you 66% more space for roughly £300 to £350 extra. Both are 8 ft wide, so the layout stays the same. The extra 4 ft of depth adds a full growing zone at the back. If you found an 8x6 too cramped for staging and grow bags at the same time, the 8x10 solves that problem without needing a wider base.
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What base do I need for an 8x10 greenhouse?
A flat, level base of paving slabs or concrete. The standard 8x10 footprint is 2,570 mm x 3,210 mm for Vitavia models and 2,545 mm x 3,205 mm for Elite. Use 50 mm of compacted sharp sand under the slabs. Level to within 3 mm corner to corner. Our base building guide covers the full process step by step.
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Do I need planning permission for an 8x10 greenhouse?
Most 8x10 greenhouses fall within permitted development. Ridge heights range from 2,300 mm (Neptune) to 2,660 mm (Swallow Raven). The 2.5 metre limit applies within 2 metres of a boundary. Models with ridges above 2,500 mm include the Janssens range and the Swallow Eagle. Check your positioning if the greenhouse sits close to a boundary fence or wall.
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Which 8x10 greenhouse is best for beginners?
The Vitavia Neptune 8300 at £845 is our top budget pick. It has a 12-year warranty, two roof vents, a sliding door, and integral gutters with a free downpipe kit. Assembly takes a full weekend for two people. If your budget stretches to £1,099, the Elite Belmont adds a 20-year warranty and a locking door.
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How long does it take to build an 8x10 greenhouse?
Allow a full weekend for two people. Day one is typically the base frame and side sections. Day two is the roof bars and glazing. The 8x10 has more glazing panels than an 8x6 but the assembly method is the same. Do not leave a partially glazed frame overnight as wind can buckle unsupported bars. Swallow timber models include free professional installation.