Halls ICON 6 6x4 Greenhouse 3mm horticultural glass - Mill HR01005

Designed for gardens where space matters, the Halls ICON 6 6x4 greenhouse combines a compact footprint with impressive internal height, offering a comfortable, well-proportioned growing environment without overpowering your outdoor space.

With its modest footprint, this 6x4 greenhouse slots easily beside borders, along fences, or into unused corners while still providing generous internal height for comfortable planting, watering, and daily plant care. The elevated eaves and efficient ventilation help maintain a healthy growing environment, allowing you to enjoy the practicality of a full greenhouse without overwhelming your outdoor space.

Constructed using a durable mill Aluminium finish and glazed with 3mm horticultural glass, the ICON 6 is designed for reliable, everyday use. The smooth-sliding door provides easy access while preserving valuable interior space, making it a practical choice for gardeners seeking a tidy, low-maintenance greenhouse that performs season after season. 

Frame colour and glazing options available 

The Halls ICON 6 6x4 greenhouse is available with a choice of mill-finish aluminium, powder-coated green, or black[LINK] frames, allowing you to match the greenhouse to both your garden style and long-term durability needs. The powder-coated frames feature a tough, weather-resistant finish that helps protect against corrosion, scratches, and general wear, while the mill aluminium option offers an industrial, low-maintenance appearance.

Glazing options include 3mm horticultural glass for excellent light transmission and easy replacement, 3mm toughened safety glass[LINK] for increased strength and safer breakage, or 4mm twin-wall polycarbonate[LINK] for improved insulation and diffused light. This range of frame colours and glazing types ensures the ICON 6 can be tailored to different growing requirements, budgets, and garden designs without compromising on build quality or usability.

 

Halls Icon 6 6x4 greenhouse key features

• Space-efficient 6x4ft footprint ideal for small to medium gardens
• 3mm horticultural glass for high light levels and healthy growth
• Strong mill finish aluminium frame for low-maintenance durability
• Increased eaves height for improved comfort and airflow
• Smooth sliding door to maximise usable internal space
• Pre-fitted integral guttering ready for 40mm downpipe connection
• Secure G-clip glazing system to hold glass firmly in place
• Reinforced roof ridge with optimised pitch for added structural strength
• Integrated glass stops to reduce movement and manage condensation
• Manufactured in Denmark with a 12-year manufacturer’s warranty

 

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

 

What makes the ICON 6 easy and safe to use day-to-day

Horticultural glass for excellent light and practical maintenance

The 3mm horticultural glass glazing provides high levels of light transmission to support healthy plant growth across the seasons. Made up of individual panes, it is straightforward to replace if damaged, making it a practical and cost-effective glazing choice for everyday greenhouse use.

Higher eaves for improved comfort and airflow

The increased eaves height creates a more open internal working area, improving airflow and making routine tasks such as watering, potting, and plant care more comfortable within a compact 6x4 greenhouse footprint.

Mill-finish aluminium frame for long-term reliability

The mill aluminium frame offers strong resistance to rust and weathering without the need for painting or regular treatment. This low-maintenance construction delivers dependable performance year after year while maintaining a clean, classic greenhouse appearance.

Sliding door for easier access and better use of space

The smooth-sliding door design avoids inward or outward swing, preserving valuable growing space inside the greenhouse and reducing effort when moving in and out with trays, tools, or compost.

Stable aluminium structure with minimal upkeep

Aluminium construction provides a rigid, lightweight framework that stands up well to changing weather conditions, offering long-term durability without the ongoing maintenance associated with timber alternatives.

Secure glazing with reduced movement and condensation

The G-clip glazing system and integrated glass stops help hold panes firmly in place, reducing vibration in exposed conditions while channelling condensation away more effectively to keep the interior cleaner and quieter.

Integral guttering for controlled rainwater collection

Built-in gutter channels run along the eaves and are ready for connection to an optional downpipe kit, allowing simple rainwater harvesting when paired with a water butt.

 

Optional accessories to complete your greenhouse

The Halls ICON 6 can be customised at the point of purchase with a range of optional extras, including a downpipe kit, water butt and stand, louvre vent kit, capping, and decorative cresting. These additions allow you to tailor the greenhouse to your growing style while improving durability, ventilation, and appearance.

Please note: accessories must be purchased at the same time as the greenhouse.

 

Who is the ICON 6 6x4 greenhouse best tailored for

The ICON 6 6x4 greenhouse is well suited to gardeners who want a dependable, compact structure for seed sowing, herbs, seasonal vegetables, and overwintering plants. It provides a controlled growing environment without the expense or visual dominance of a larger greenhouse.

If you require higher production capacity or clearly separated growing zones, a larger ICON model may be more appropriate, such as the 6x6[Link] or 6x10[Link]. For most home gardeners seeking a practical, long-lasting greenhouse in a modest footprint, the ICON 6 offers excellent value and usability.

 

Greenhouse specifications

• Model: Halls ICON 6 greenhouse (6'4" x 4'4")
• Size: 6ft x 4ft compact footprint
• Frame: Mill-finish aluminium frame for low-maintenance durability
• Glazing: 3mm horticultural glass panels for excellent light transmission
• Door: Smooth-sliding door to maximise internal growing space
• Ventilation: Manual roof vent with optional auto-vent compatibility
• Guttering: Integral guttering built in for optional rainwater collection
• Accessories: Compatible with base plinth, staging, louvre vent, capping, cresting, and downpipe kit
• Base: Galvanised steel base recommended for stability and anchoring

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.