Halls ICON 6 6×6 Greenhouse 4mm Polycarbonate - Mill HR01048

A smart step up in space and performance: the Halls ICON 6 6x6 4mm polycarbonate greenhouse in a mill finish for a stable, insulated growing environment

The Halls ICON 6 6x6 greenhouse delivers a perfect balance between compact garden footprint and generous growing space. Its square layout provides ample room for staging shelves, tending plants, and moving around without feeling cramped, yet it still fits neatly into most family gardens. The improved headroom and airflow create a calm internal environment where everyday gardening tasks feel relaxed and efficient.  Built around a resilient aluminium frame and glazed with 4mm twin-wall polycarbonate glass, this greenhouse combines strength, insulation, and thoughtful design. The low-threshold sliding door enables easy access for trays, compost, and tools while preserving valuable internal space. Ideal for gardeners stepping up from smaller models or looking to expand productive growing areas, this greenhouse offers reliable year-round performance with a low-maintenance finish

Frame colour and glazing options available

The ICON 6 range offers multiple frame finsihes and glazing options to suit both practical needs and garden style. Options typically include powder-coated black or green frames that are corrosion-resistant and weather-tough, and a mill-finish aluminium frame for a timeless, understated look that requires minimal upkeep. The mill finish available on this model provides a clean, neutral aesthetic that blends seamlessly into traditional and contemporary garden settings alike.

Glazing choices give gardeners flexibility in performance and appearance. While 3mm horticultural glass gives traditional clarity and excellent light transmission, and 3mm toughened safety glass adds strength and peace of mind, the 4mm twin-wall polycarbonate glazing on this model enhances insulation, diffuses direct sunlight to protect plants from scorch, and stands up to harsher weather conditions while remaining highly durable.

 

Halls ICON 6 6x6 greenhouse features

• Excellent 6×6 footprint offering comfortable growing and working space
• 4mm twin-wall polycarbonate glazing for better insulation and impact resistance
• Mill-finish aluminium frame for a timeless, low-maintenance look
• Freestanding design for flexible placement in your garden
• High eaves for improved airflow and comfortable headroom
• Low-threshold sliding door for smooth access
• Wide integrated gutters ready for optional downpipe connection
• Optimised roof pitch designed for reliable performance in varied UK weather
• Manufactured with a reinforced frame for long-lasting use
• Supported by a 12-year frame warranty

 

Don't forget greenhouse bases and accessories—delivery of these is also free at the same time as purchasing a Halls greenhouse.

 

What makes the ICON 6 6x6 easier and safer to use day to day

4mm twin-wall polycarbonate glazing for controlled growing conditions

The polycarbonate panels help retain warmth, reduce heat loss, and diffuse sunlight evenly, creating a stable internal climate ideal for seedlings, vegetables, and tender plants.

Comfortable, manoeuvrable footprint

 The square 6×6 layout gives you room to arrange staging, manage taller plants, and move comfortably without congestion.

Mill aluminium frame for durability and low maintenance

The corrosion-resistant mill aluminium frame remains neutral in appearance and requires minimal upkeep, making it ideal for long-term use.

 High eaves for comfort and airflow

Increased internal height supports better ventilation and makes routine tasks such as watering and potting more comfortable.

Low-threshold sliding door for practical access

The smooth-glide sliding door allows easy movement of tools, trays, and compost while maximising the usable internal growing area.

Stable structure for dependable performance

Reinforced framing and an optimised roof pitch provide reassurance in changing UK weather conditions.

Integrated guttering for rainwater collection

Wide gutters are ready for optional 40mm downpipes, making rainwater harvesting simple and sustainable.

 

Optional add-ons to create a complete setup from the start

Make your Halls ICON 6 6x6 greenhouse complete with optional accessories available at the point of purchase. Choose a galvanised steel base plinth for secure installation, a downpipe kit and waterbutt and stand for rainwater collection, louvre vents for improved airflow, glazing capping for added durability, or decorative cresting for a finished appearance. Folding modular staging and shelving are also available and fit neatly inside the ICON 6 range, providing flexible storage for plants, trays, and tools.

Accessories must be ordered at the same time as your greenhouse.

 

Who the ICON 6 6x6 greenhouse is best suited to

The ICON 6 6x6 is ideal for gardeners who want a versatile greenhouse that offers a noticeable step up in space from compact models without moving to a much larger structure. It suits seed propagation, growing vegetables and herbs, organising pots and staging, and protecting plants year-round. The equal-sided footprint makes daily use feel relaxed and practical, particularly for those upgrading from a 6×4 greenhouse or looking for a balanced size that won’t dominate the garden.

 

Greenhouse specifications

• External width: Approx. 1.93m (6 ft 4″)
• External depth: Approx. 1.93m (6 ft 4″)
• Eaves height: Approx. 1.22m (4 ft 0″)
• Ridge height: Approx. 1.95m (6 ft 5″)
• Internal growing area: Approx. 3.7m²
• Frame material: Mill-finish aluminium
• Frame type: Freestanding greenhouse design
• Roof style: Apex roof with optimised pitch
• Door type: Low-threshold sliding door
• Glazing: 4mm twin-wall polycarbonate
• Glazing system: Secure panel fixing for stability
• Roof ventilation: Provision for manual or automatic vents
• Guttering: Integrated gutters ready for optional 40mm downpipes
• Performance: Reinforced frame for reliable UK weather use
• Warranty: 12-year frame warranty

Why order from Steam and Moorland?

Based in North Yorkshire, Steam and Moorland is a family-run business with a long-standing reputation for practical advice and dependable service. Our focus is simple: we aim to get things right first time, and if anything does need attention, we stay with it until it’s properly resolved. You are dealing with real people who take genuine ownership of your order from start to finish.

Delivery is direct from the supplier and typically takes 7-10 working days. For deliveries to Scottish Highlands, Islands, or other remote areas, please contact us before ordering so we can confirm timescales and access.

 

Frequently asked questions

Do I need a base for my greenhouse?

In most cases, yes, a base is strongly recommended. A purpose-made greenhouse base makes installation far easier, ensures the structure sits level, and provides long-term stability. This helps protect both the frame and the glazing over time.

If your greenhouse is being installed onto an existing solid surface such as a concrete pad, brick base, or wall-mounted foundation, you may not require a separate steel base. However, where no suitable foundation already exists, a proper base is the safest and most straightforward option.

Occasionally, bases may be included as part of a special offer. If that applies, the option can simply be selected at zero cost when ordering.

Do I need professional installation?

All greenhouses are supplied with full instructions and many customers do successfully install them themselves. However, installation does require time, careful preparation, and suitable weather conditions. Many customers choose professional installation for added convenience and peace of mind. If you do opt for installation for your Icon 6 greenhouse, it is essential that the area is fully prepared ahead of time. This means the ground must be level, clear of debris, and easily accessible for the installation team.