Grey Greenhouses On Sale

6.4' H x 10' W x 6' D

The polycarbonate greenhouse is built to last, featuring a rust-proof aluminium alloy frame and 4mm twin-wall PC panels that are 200 times stronger than glass—so no bending, no cracking, and no constant maintenance. It delivers over 80% natural light transmission while trapping heat inside, keeping your plants warmer in winter and cooler in summer, with UV-resistant panels that stay crystal clear for years. The walk-in design offers generous growing space, available in popular sizes like 6x4 and 6x10ft, perfect for plants, flowers, vegetables, and even tool storage. The slanted roof vent lets you release trapped hot air with one hand from inside—no ladder needed—while dual-side rain gutters prevent pooling and protect the foundation. With a lockable door for security, shatter-proof panels for safety, and lightweight modular components for effortless assembly, this greenhouse is ready when you are—just enjoy your growing space.

Absolutely love my new greenhouse it’s easy to put up and very sturdy well worth the cost which was very reasonable. Very happy with this product. Anonymous. Sun Mar 08 2026

A stylish mini wooden greenhouse with shelves, perfect for small spaces in your garden or patio area.

Useful little greenhouse, ideal for storing plants in winter or for bringing on seeds in spring. Geoffrey. Bradford-on-avon, GB. Wed Jun 24 2026

Anthracite

This greenhouse can accommodate a considerable number of plants and is a great solution for protecting your plants from the cold weather. EU responsible party Haba Trading B.V. Mary Kingsleystraat 1 5928SK Venlo The Netherlands [email protected]

Nice greenhouse but got so far and had to ask a friend, who’s an engineer, to help as instructions just pictures and not clear. Built a base with black grids and pea gravel. Hammered ballast stakes into ground and drilled holes in frame. Secured with metal angles pieces. My only disappointment is the window does work on 5 angled options, there is nothing for the holes in the latch to sit on to support the open window. Spent hours looking on u tube for videos but nothing. Photo is not showing complete greenhouse.. Annamaria. Swindon, GB. Sun May 17 2026

A large open design, this Outsunny 3 x 2m polytunnel greenhouse offers plenty of room for plants and more. Walk in and walk out - it's that spacious. A galvanised steel frame for a strong core, it comes with a two-layer mesh cover to create safe shelter inside; the middle reinforcement makes the cover extra tough. A large door for easy access, with six windows to bring fresh air in easily. Set comes with 4 x ground stakes, 4 x guy ropes, 6 x plant labels and 1 x pair of gloves.- Reinforced and galvanised steel frame for a strong, stable structure; - Centre reinforced plastic cover: holds in place, creates a safe shelter; - Roll-up door and six windows for easy access inside and ventilation. Mesh screen to keep bugs away; - 15cm other edge to bury cover into soil; - 4 x ground stakes, 4 x guy ropes, 6 x plant labels and 1 x pair of gloves included; - Assembly required, 3-4 people recommended;- Colour: White, Grey; - Material: Galvanised Steel, 140 GSM PE, Polyester; - Overall Dimensions: 296L x 200W x 200Hcm; - Side Window Dimensions: 47W x 40Hcm; - Outer Door Dimensions: 110W x 170Hcm; - Inner Mesh Door Dimensions: 90W x 185Hcm; - Windproof Level (when fully fixed): Level 5-6; - Item Label: 845-921V02WT;

I'm super pleased with this polytunnel. It was quite easy to construct - I did it on my own also and I'm pleased with it's sturdiness and quality. The poly cover was easy to put on and is well made and adds to the overall durability. Instructions were easy to follow. Once up, the velcro window openings and double skinned door make it easy to ventilate. Overall for the really cheap price it's great.. Hugh. Killyleagh Downpatrick, GB. Tue Apr 28 2026

Anthracite

This greenhouse can accommodate a considerable number of plants and is a great solution for protecting your plants from the cold weather. EU responsible party Haba Trading B.V. Mary Kingsleystraat 1 5928SK Venlo The Netherlands [email protected]

Fit for purpose Easy to assemble. Ruth. Spalding, GB. Mon Jul 13 2026

Anthracite, 202cm H x 169cm W x 114cm D

This greenhouse can accommodate a considerable number of plants and is a great solution for protecting your plants from the cold weather. EU responsible party Haba Trading B.V. Mary Kingsleystraat 1 5928SK Venlo The Netherlands [email protected]

Just right size for me small easy to put together. Debbie. Bury St. Edmunds, GB. Tue Aug 18 2026

Dark Grey

Experience the magic of greenhouse gardening with the polycarbonate greenhouse, which provides optimal light transmission and insulation against harsh weather. The spacious interior and sturdy aluminium alloy frame accommodate plants of all sizes. An adjustable roof vent and a sliding door to control ventilation and humidity and for easy access. Invest in the Dakota Fields Greenhouse and enjoy fruitful harvests in your garden oasis.- Retains heat and blocks weather elements and small animals; - Consists of 4mm twin-wall polycarbonate sheets and powder-coated aluminium alloy frame; - Sturdy foundation keeps stable standing; - Sliding door allows easy access to your plants and makes maintenance hassle-free; - five-level adjustable roof vent for fresh air circulation and humidity control; - built-in gutter system for effective drainage and rainwater collection; - slide-in-slot assembly;- colour: dark grey, clear; - material: aluminium alloy, polycarbonate; - overall dimensions: 190W x 70D x 200Hcm; - interior space: 183W x 63Dcm; - door size: 62W x 172Hcm; - window size: 61W x 59Dcm; - foundation size: 191W x 70D x 5Hcm; - item label: F73BB3B5175A490BBCFDB4D3288D7A67;

I do not recommend this greenhouse at all. It has a million parts and screws, and after the first difficult assembly, a light wind completely destroyed it. I absolutely do not recommend this product.. Anonymous. Sun Apr 05 2026

This Dakota Fields wooden growhouse is a great addition to any gardener. Cold frames for garden clearance is made from fir wood and polycarbonate panels, with 2 shelves to place plants. This clean to greenhouse is ideal to keep the temperatures cool for the summer and warm in the winter. The coldframe for garden comes complete with 2 shelves, top access opening and double doors for forward opening. Our indoor growing tent is a great solution for any gardener and ideal for any time of the year.- Stylish and sturdy compact wooden design greenhouse - Fully equipped for outdoor use - Extend growing season and protect young plants from frost - Made from fir wood frame and polycarbonate panels - UV proof polycarbonate walls with flip-top hinged lid - With 2 slatted wood shelves for added storage space - Galvanized metal parts for rust proofing - Assembly required- Material Used: Fir Wood, Polycarbonate - Colour: Dark Grey - Product Dimension: 58L x 44W x 78H cm - Weight Capacity: 15kg (each shelf) - Net Weight: 6.8kg - Flat Pack: YES - Assembly Required: YES - Other Key Info: Lid Size: 58L x 44W Shelf Size: 55L x 40W x 2H cm- Item Label: 85F2A2FF88A343599CDD26CFEBBD863A

Absolutely brilliant well worth the money. Brogan. Crewe, GB. Mon Apr 27 2026

Grey

This cold frame greenhouse can be a perfect choice for you to take care of your lovely plants. Solid wood frame for reliability. Transparent polycarbonate panels allow maximum light transmission while retaining heat for early seed sprouting or for protecting plants late in the season. Double doors and a 3-tier shelf make planting easier. This greenhouse provides an environment with an ideal temperature, your plants can enjoy the sunlight and grow healthily. The practical greenhouse can extend the growing season. Transparent polycarbonate boards with good light transmittance to let plants fully absorb sunlight. Openable roofs for good ventilation. Double doors with latches for easy management of plants.

Much better than I’d expected!!! Super easy to put together and I have peppers months ahead of where they’d usually be. Im thinking of getting another.. Anonymous. Sun Jun 14 2026

This 3 tier hobby greenhouse is a good helper in your garden. It can be used in the garden after a simple assembly. Put your flowers and plants in the greenhouse, you can let the plants fully enjoy the outdoor sunshine, and grow heartily. You don't need to worry about too much wind and rain, turning over the flowerpot and other problems, all you need to do is to water regularly. With the greenhouse, even if you don't have the skill to plant flowers, your flowers can grow well.

Wished this item had better instructions on how to build it, but once we’d manage to construct it I was very pleased with the outcome. Jackie. Fri May 29 2026

Give your plants and vegetables somewhere to grow healthily, thanks to this small wooden greenhouse. This mini grow house is made using a wood frame, so it solidly keeps in shape, fitted with transparent polycarbonate panels: they keep the heat inside whilst the transparency allows the sun to shine through as best as possible. Roof opening provides proper ventilation and easy access to your plants. Add a touch of green to your garden with this simple cold frame design. Sturdy compact garden cold frame greenhouse for outdoor and indoor use. Extend the growing season and protect young plants from frost. Clear polycarbonate panels allow maximum light transmission, whilst retaining heat. Solid wood frame with a coat of paint for protection. Adjustable roof opening provides proper ventilation and easy access to your plants.

Perfect addition to raised bed. Prompt delivery and easy to assemble. Robust attractive design. Excellent!. Michael. London, GB. Thu Mar 05 2026

Anthracite, 202cm H x 224cm W x 169cm D

This greenhouse can accommodate a considerable number of plants and is a great solution for protecting your plants from the cold weather. EU responsible party Haba Trading B.V. Mary Kingsleystraat 1 5928SK Venlo The Netherlands [email protected]

This 3 tier hobby greenhouse is a good helper in your garden. It can be used in the garden after a simple assembly. Put your flowers and plants in the greenhouse, you can let the plants fully enjoy the outdoor sunshine, and grow heartily. You don't need to worry about too much wind and rain, turning over the flowerpot and other problems, all you need to do is to water regularly. With the greenhouse, even if you don't have the skill to plant flowers, your flowers can grow well.

Bought this for the summer time grown lettuce, sown seeds great little greenhouse reasonable price fast delivery highly recommend if you haven't got alot of space. My husband however found it quite difficult to assemble instructions not too clear. Anonymous. Burtonwood Warrington, GB. Tue Sep 06 2022

Anthracite

This greenhouse can accommodate a considerable number of plants and is a great solution for protecting your plants from the cold weather. EU responsible party Haba Trading B.V. Mary Kingsleystraat 1 5928SK Venlo The Netherlands [email protected]

Martyn. Wed Jul 15 2026

This cold frame greenhouse can be a perfect choice for you to take care of your lovely plants. Solid wood frame for reliability. Transparent polycarbonate panels allow maximum light transmission while retaining heat for early seed sprouting or for protecting plants late in the season. Double doors and an adjustable shelf make planting easier. This greenhouse provides an environment with an ideal temperature, your plants can enjoy the sunlight and grow healthily. The practical greenhouse can extend the growing season. Transparent polycarbonate boards with good light transmittance to let plants fully absorb sunlight. The adjustable shelf can be used to place some potted plants or store gardening tools. Double doors with handles for easy management of plants.

A perfect size for my patio & good for the price. It’s a pity it doesn’t have a catch to prevent the top opening when windy so I’ve had to weigh it down until I can buy a catch for it, but otherwise excellent.. Elaine. Cumbria, GB. Fri Jul 08 2022

Anthracite

This greenhouse can accommodate a considerable number of plants and is a great solution for protecting your plants from the cold weather. EU responsible party Haba Trading B.V. Mary Kingsleystraat 1 5928SK Venlo The Netherlands [email protected]

Bought this as I have limited space in the garden. Part of the frame work for the door was missing it's clamp fixing. Tried to get the part from the supplier OUTOFSTOCK had a complete assembly sent as replacement The same part was missing. Supplier clearly distributed the product incomplete.. Robert. Broadheath Altrincham, GB. Wed May 06 2026

Whether it's early Spring or late Autumn, you'll be sure to grow plants, vegetables and more to their best - get this greenhouse from Outsunny. It comes with a steel frame for a steady core, with accessories included for extra stability. The plastic coat creates a protective shell, holding in the heat and shielding from harmful UV rays. The back window allows air in easily, with a zipped front door to enter and leave to access your plants at any time. Simply put up and go.

Happy with the purchase, well made, but zip is a bit flimsy and looks like it may fail soon!. James. Chinnor, GB. Sun Jan 26 2025

This cold frame greenhouse is a great choice to care for your plants. Solid fir wood frame for reliability. Transparent polycarbonate panels allow maximum light transmission, whilst retaining heat for early seed sprouting or for protecting plants late in the season. Features three removable shelves for organizing plants. This plant grows house creates an ideal-temperature environment, so plants can grow healthily. Polycarbonate window panels create shelter. The top windows are open for ventilation. Double door design to enter inside easily latch lock for security. Three inner shelves to hold lots of plants, vegetables, pots and more. Can be removed. Solid fir wood frame with a treated surface for durability. The shelves can be removed to suit plants of different heights. Assembly required.

Poor quality, missing pieces and the hinges for the top doors are not fit for purpose.. Rebecca. Four Marks, GB. Mon May 20 2024

Grow and nurture plants, small vegetables, and flowers even in the smallest and lowest of spots, with this cold box greenhouse from Outsunny. The wood frame makes the structure reliable, with transparent polycarbonate panels for allowing light inside, whilst helping heat for maximum growth. The roof can be opened to get inside and allow air in. Green fingers, anywhere, thanks to this compact little piece.

Love it. Anonymous. Belton Great Yarmouth, GB. Tue Apr 18 2023

Anthracite, 195cm H x 445cm W x 169cm D

This greenhouse can accommodate a considerable number of plants and is a great solution for protecting your plants from the cold weather. EU responsible party Haba Trading B.V. Mary Kingsleystraat 1 5928SK Venlo The Netherlands [email protected]

Grey

This greenhouse can accommodate plants and herbs and is the perfect choice for any flower enthusiast and professional gardener.

Get this portable greenhouse from Dakota Fields to extend your growing season by protecting plants from cold and birds. It comes with a steel frame for a steady core. The PE cover creates a protective shell, holding in the heat and shielding from wind and rain. The roll-up door, with zip fastening, allows you to enter and leave to access your plants at any time. Simply put up, go and grow. Do not leave standing in heavy weather conditions.- UV-resistant PE plastic cover for protection against water, wind and damaging sun rays- Large roll-up door for easy in and out- Metal wire shelves to store and display plants above the ground- The metal frame is solid and stable- Reinforced piping edges of the cover protect it from potential tears and enhance the strength.

Needs to be in a sheltered location as it is very light but is exactly what I need, good price and value for money.. Anonymous. Tue Feb 06 2024

A large open design, this Dakota Fields 6 x 3m polytunnel greenhouse offers plenty of room for plants and more. Walk in and walk out - it's that spacious. A galvanised steel frame for a strong core, it comes with a two-layer mesh cover to create safe shelter inside; the middle reinforcement makes the cover extra tough. A large door for easy access, with eight windows to bring fresh air in easily. Set comes with 4x ground stakes, 4x guy ropes, 15x plant labels and 1x pair of gloves.- Reinforced and galvanised steel frame for a strong, stable structure;- Centre reinforced plastic cover: holds in place, creates a safe shelter;- Roll-up door and eight windows for easy access inside and ventilation. Mesh screen to keep bugs away;- 15cm other edge to bury cover into soil;- 4x ground stakes, 4x guy ropes, 15x plant labels and 1x pair of gloves included;- Assembly required, 3-4 people recommended;- Colour: White, Grey;- Material: Galvanised Steel, 140 GSM PE, Polyester;- Overall Dimensions: 591L x 300W x 196Hcm;- Side Window Dimensions: 47W x 38Hcm;- Outer Door Dimensions: 174W x 165Hcm;- Inner Mesh Door Dimensions: 154W x 165Hcm;- Windproof Level (when fully fixed): Level 5-6;

Transform your gardening with the Garden Greenhouse! This four-tiered lean-to greenhouse with shelves offers lots of space for flower pots and seed trays, enveloped by a 140g/m² PE cover that shields plants from UV damage while bathing them in sunlight. Plus, the roll-up zipped door ensures easy access and optimal ventilation. Great for any small greenhouse enthusiast looking to create a lush portable garden oasis!- Four-tier plant shelf maximizes storage for gardening essentials; - 140g/m² PE cover shields plants from UV, enhances longevity; - Roll-up zipped door ensures easy entry and optimal ventilation; - Sloped roof design prevents water accumulation, protecting structure; - Powder-coated steel frame offers robust, stable support; - Overlong cover to bury into ground for seal and stability; - Easy Assembly;- Colour: Grey, White; - Materials: Steel, Polyethylene; - Overall Dimension: 110W x 50D x 171/158Hcm; - Door Dimension: 92W x 157Hcm; - Wire Shelf Dimension: 53W x 46D x 38Hcm; - Edging Width: 10cm; - Each Shelf Weight Capacity: 8kg; - For Assembly: 1-2 people recommended; - Item Label: 84H-242V00WT;

Protect and grow your plants in cold weather with this portable greenhouse. Made with a strong powder-coated steel frame, it features four inside shelves to keep your plants, herbs, and vegetables neatly displayed and organized. On the outside is a PE gridding cover that allows sunlight to reach the flowers and plants, and it is finished with two zips for quick and convenient access. It's ideal for those with little space, such as balconies and patios. Clear PE gridding cover to allow sunlight to your plants, flowers, and vegetables. Protect plants from too much heat or cold, and keep out the pests. Four inside shelves to place plants. Portable and compact design that's ideal for balconies and patios. Sturdy powder-coated steel framing. Rollable double-zipped door for quick and easy access. Grey banding for stronger durability. The outer cover is 10cm longer and needs to be buried in the soil to enhance stability.

Perfect, my cuttings and seedlings have vastly improved since the metalling this grow rack.. Shevonne. Sun Oct 24 2021

Sliver, 194.5cm H x 185cm W x 246.6cm D

To become a qualified gardener, you must first have a professional greenhouse. This tilting greenhouse, made of durable translucent polycarbonate, offers excellent insulation and is crack-resistant. Its sturdy aluminum frame requires minimal maintenance and provides a stable structure to help your plants endure cold winters and extreme weather. Featuring a ventilated single window for optimal sunlight and air circulation, it’s perfect for sowing, cuttings, and nurturing tender plants.

Anthracite

This greenhouse can accommodate a considerable number of plants and is a great solution for protecting your plants from the cold weather. EU responsible party Haba Trading B.V. Mary Kingsleystraat 1 5928SK Venlo The Netherlands [email protected]

【ULTIMATE POLYCARBONATE GREENHOUSE】 Crafted to withstand unpredictable British weather, our premium greenhouse pairs heavy-duty 720g/m² twin-wall panels with a reinforced aluminium-steel frame. This rugged construction ensures unwavering stability during storms and high winds, making it the perfect, durable green house for garden spaces to protect your plants year-round.【EFFORTLESS & QUICK SETUP】 Transform your outdoor space in record time! Our complete kit includes detailed instructions and all necessary tools. Featuring innovative slide-in panels and a secure, tool-free locking mechanism, assembly is significantly quicker than traditional screw-based models. Enjoy a sturdy, reliable green house structure with minimal effort.【SPACIOUS WALK IN GREENHOUSE】 Whether you need a dedicated tomato greenhouse for tall vines or a functional potting shed to organise your gardening tools, this versatile structure delivers. The generous headroom and practical layout make it an ideal sanctuary for starting seeds, overwintering tender plants, and cultivating thriving crops.【SMART VENTILATION SYSTEM】 Promote thriving, healthier plants with our strategically positioned, adjustable roof vent. It enables precise control of airflow, temperature, and humidity, helping maintain an ideal growing environment. Even operating as a small greenhouse, this intelligent layout encourages continuous air circulation to prevent overheating during warmer days.【VERSATILE GARDEN ADDITION】 Designed to maximise your growing potential, this sleek unit complements any patio, backyard, or allotment. Whether you position it freestanding or place it securely against a wall as an alternative to a lean to greenhouse, it acts as the ultimate greenhouse solution. Start cultivating a lush, flourishing garden today!