Large (8 - 20 Ft. D) Greenhouses On Sale

200cm H x 300cm W x 397cm D

Discover the joys of year-round gardening in the spacious interior of the Outsunny Polytunnel Greenhouse. Featuring three convenient roll-up doors and multiple mesh windows for optimal ventilation, this walk-in greenhouse ensures your plants thrive in any weather. The robust 140 gsm PE cover bathes your greens in 85% sunlight while guarding against UV. Great for every green thumb looking for a spacious garden tunnel to cultivate their garden polytunnel paradise!- Three roll-up doors enhance ventilation and access options; - Six mesh windows improve airflow; - 140 gsm PE cover allows 85% sunlight penetration, resists UV; - Reinforcement grid prevents cover tearing, extends lifespan; - Galvanised steel frame with bracing for robust stability; - Ground stakes and guy ropes increase wind resistance; - Extended cover improves warmth, blocks weed entry; - Assembly required;- Colour: Green; - Material: 140 gsm PE, Galvanised Steel; - Overall Dimension - Front Door Dimension: 117W x 180H cm; - Side Door Dimension: 102W x 150H cm; - Window Dimension: 46W x 46H cm, 47W x 45H cm; - Edging Width: 15 cm; - Windproof: Level 4 (wind speed below 17.5mph); - For Assembly: 3-4 people recommended; - Item Label

Good greenhouse.. Paul. GB. Sat Mar 22 2025

Perfect for the home gardening enthusiast, looking for a way to grow and nurture plants from the summer through to winter. Six windows to let in the air at different parts of the tunnel, it also comes with a zipped door for easy access in and out. Vegetables, flowers, fruits and plants beyond, this is a fantastic place to let your fingers become greener than ever before. Large zipped door for access.

Perfect for all my needs in potting and growing fruit and veg and flowers . Thanks. Peter. Trillick, Dub. Tue Jun 06 2023

This Dakota Fields 15x10ft greenhouse is perfect for every gardening enthusiast, who is looking for a way to stay in the soil all year round! The plant greenhouse offers all the protection your plants need to thrive without having to spend a great deal of green yourself. The steel frame and PE cover create a safe, protective shelter for all your plants. The six windows, with netting, allow fresh air inside, whilst the roll-up door gives easy access.- Large, walk-in design, protects plants from weather and nature (like birds)- Galvanized steel frame, structure is strong and tough.- Six mesh-lined windows and mesh zipped door.- Protective PE cover, with 15cm extended edges.- Assembly required, four guy ropes and four ground pegs included.- Color: Green.- Material: Galvanized Steel, PE.- Overall Dimension: 447L x 300W x 200Hcm.- Window Size: 46L x 36Wcm.- Door Size: 170W x 173Hm.- Windproof Level: 3-4.- Item Label: D2BCA4B918634D0FA226435A52105B47.- NOTE: Please do not use acidic farm chemical to avoid chemical reactions with the alkaline PE cover, which result in breakage.

Small spots count for growing too, thanks to this Outsunny 300 x 300cm greenhouse. The open inside allows you to set up inside however you want - how about placing shelves for organisation? The zipped doors ensures easy access; it rolls up and stays in place. Mesh windows allow fresh air inside whenever you want. A steel frame for a strong core, fitted with a protective plastic cover to create a safe shield from outside weather. Comes with ground stakes and guy ropes to secure to ground.- Roll-up doors and mesh windows: access inside and allow fresh air in; - Steel frame, with arched top to reduce saggings; - Three-layer plastic cover to protect. Middle reinforcement grid for extra durability; - Extended cover edges to bury into soil. Ground stakes and guy ropes for extra stability; - Two people recommended to assemble;- Colour: Green; - Material: Steel, Polyethylene; - Overall Dimensions: 300L x 300W x 200Hcm; - Door Dimensions: 180W x 170Hcm; - Side Window Dimensions: 125W x 50Hcm; - Edging Width: 10cm; - Windproof: Level 4 (wind speed below 17.5mph); - Item Label: 845-958V02GN;

181 x 423 x 195 cm

Extend your growing season with this 1.8 × 3.6 m Walk-In Polycarbonate Greenhouse, built to deliver a comfortable, protected environment for gardening in spring, fall, and winter. Featuring twin-wall translucent PC panels with 99.99% UV protection, it helps diffuse sunlight while shielding plants from harsh exposure. The greenhouse measures 1.8 × 3.6 × 1.95 m, and for added stability, a 1.98 × 3.96 m foundation is recommended. Designed for strength you can rely on, the durable aluminum frame pairs Quick-Fit joints and reinforced screws, while expansion screws secure the base for a solid, long-lasting setup. Enjoy better climate control with two roof vents and a lockable swing door, making it easy to adjust airflow, temperature, and humidity as conditions change. Built for real outdoor use, it offers a 20 psf snow load capacity and a 56 mph wind rating. Installation is refreshingly simple thanks to quarter-turn Quick-Fit locks that ensure precise alignment and fast snap-in connections—reducing screws and setup time so even beginners can assemble with confidence.

Green, 285cm H x 600cm W x 600cm D

This spacious greenhouse can accommodate a considerable number of fruits, vegetables and plants. It is ideal for protecting your plants from adverse weather conditions.

198cm H x 298cm W x 399cm D

Transform your garden into a haven for growth, thanks to this Outsunny walk-in polytunnel greenhouse. The integrated spray system is easy: simply connect your hose - keeps plants hydrated and happy. The galvanised steel frame and reinforced support bars ensure a strong standing structure, all protected with a plastic cover.- Sprinkler system for easy plant watering; - Plastic cover for safe shelter inside; - Roll-up door and windows ensure easy access, ventilation and temperature control; - Galvanised steel structure for a strong core, with reinforced diagonal rods on the corners for enhanced stability; - Extended edges to bury into the soil, with guy ropes and ground stakes included; - Two-person assembly recommended;- Colour: Green; - Material: Φ24mm Galvanised Steel, 140gsm Polyethylene; - Overall Dimensions: 298L x 200W x 197Hcm; - Window Dimensions: 35W x 35Hcm; - Door Dimensions: 132W x 167Hcm; - Extended Edge Width: 15cm; - Built-in Water Pipe Diameter: Φ20cm; - Inner Diameter of Suitable Hose: Φ13mm, Φ19mm; - Windproof Level (when fully fixed): Level 4-5; - Item Label: 845-949V00GN;

Great product easy to install. Anonymous. Sun Feb 15 2026

White

The greenhouse can effectively protect your flowers and plants from cold, frost, rain and sun. It can serve as a winter quarter for sensitive potted plants or as a tomato house for growing fresh organic vegetables. The shape of the tunnel

Very good.. Anonymous. Wed Feb 19 2025

This Dakota Fields garden polytunnel greenhouse is for all gardening enthusiasts - especially those who want to grow and nurture all year! long. The galvanised steel frame means a strong structure, with the plastic cover offering safe shelter for plants and vegetables inside. The plastic greenhouse features a large zipped door for easy access, with 6 windows to allow air inside too. For ultimate aeration inside, look to the side roll-up panels. Set comes with 4x guy ropes and 4x ground stakes.- Walk-in tunnel greenhouse: lots of room for growing plants and more with shelter;- Plastic cover is durable. 15cm extended edges to bury into soil;- Strong galvanised steel frame;- Two roll-up sides and 6 windows for inside ventilation;- A zipped roll-up door for easy access in/out;- Assembly required, 4x guy ropes and 4x ground nails included;- Colour: Green;- Material: Galvanised Steel, PE;- Overall Dimension: 300L x 304W x 200Hcm;- Front Door Size: 174W x 175Hcm;- Side Door Size: 290W x 165Hcm;- Window Size: 47L x 37Wcm;- Windproof Level: 4;- NOTE: 1. Please do not use acidic farm chemical to avoid chemical reactions with the alkaline PE cover which result in breakage;2. Not suitable for bad weather conditions

I have previously questioned this product that was delivered I have said all along this it is not the polytunnel that I ordered and paid for. Really it is not Dakota Fields that I have ordered and I have not had any more from you I was informed that as the box says Outsunny it is Dakota Fields but once I have opened it says Outsunny on the inside label. Can someone rectify this for me 07870861364. Anonymous. Mon Aug 04 2025

Extend the growing season, this year and beyond - thanks to this upgraded Dakota Fields polytunnel greenhouse. A galvanised steel frame for it to stay in shape, with guy ropes and stakes included to pin to the ground. The 9.8x6.6ft size is great for holding plenty of plants - the open design means you can set it up inside how you want it. Comes completed with a zipped roll-up mesh door, six mesh windows and two roll-up sidewalls; easy access and ventilation, whenever.- PE cover offers UV and mild weather protection inside for plants to grow well;- Roll-up door, windows and sidewalls for easy access inside and ventilation;- Door and windows with mesh screens to keep bugs out;- Galvanised steel frame with reinforcement slant bars for a stable structure;- Long edges to bury into soil, with guy ropes and ground stakes also included;- Fitted with eight plant labels and a pair of gloves;- Assembly required;- Colour: White;- Material: Galvanised Steel, PE; - Overall Dimension: 300L x 200W x 200Hcm; - Window Size: 47W x 40Hcm; - Door Size: 104W x 164Hcm;- Sidewall Roll-up Height: 103cm;

6.2' W x 11.9' D

This spacious greenhouse has a total surface of 5,74 m². It can accommodate a considerable number of plants, vegetables or fruits. This solid greenhouse is made of double-walled polycarbonate panels, which makes it UV resistant and thermally insulated. It can withstand temperatures from -20°C up to 70°C and thus create your own greenhouse effect for the best results when growing. Consequently, it makes for a warm temperature and increased humidity inside. The greenhouse has a sturdy and maintenance-free aluminium construction for extra stability. The gutter system drains water effectively and the two roof vents ensure optimum ventilation on hot days. The roof window is designed with sliding function to ensure easy installation which makes this greenhouse stronger than those with clips. No fundament is required for the slide. The assembly is easy due to the required installation accessories included in delivery. Please note that the roof of our greenhouse cannot withstand heavy snowfall. Warning: The greenhouse is not a construction building or conservatory, intended for leisure purposes. It is an impermanent standalone agricultural installation intended for hobby gardening only.

I haven't set up the greenhouse yet, but I think the greenhouse could have stronger corners ... thanks. Albinas. Wisbech, GB. Tue Dec 31 2019

Silver

Looking forward to this 243.8cm x 182.9cm walk-in greenhouse? The greenhouse has a sliding door for entry and exit, skylights to open and breathe, and most importantly, this greenhouse will keep your plants at a steady humidity and keep your plants from frost in the winter.

This greenhouse seems a fantastic deal for the price. It was well packaged in two separate boxes and even though one was damaged, as you can see in the image, it was boxed well enough to protect the paneling inside. It’s winter in Maine, so I can’t get the house up yet, but I’m very excited to have a place to start the garden early this year. I gather from the number of pieces, this may be fairly time consuming to assemble.. Jennifer. Palermo, ME. Fri Jan 19 2024

This plant warmer measures 6 x 3 x 2 meters, using a sturdy steel tube frame with green PE mesh cloth, the material is safe and environmentally friendly, with good light transmission, providing plants with sufficient light. Hot-dip galvanized process treatment, pipe wall thickness of 0.5mm, effective rust and corrosion prevention, to ensure a solid and durable structure to adapt to all kinds of bad weather. Whether it is a home garden, small farm or gardening enthusiasts, this warm room can provide plants with a warm and stable growing environment, helping plants grow strong and evergreen in all seasons.