Halls ICON 6 6x4 Greenhouse 4mm Polycarbonate - Black HR01010

Create a warmer, safer growing environment with the Halls ICON 6 6×4 Black greenhouse, using 4mm polycarbonate panels to retain heat and protect plants in your garden.

 

Designed for gardeners who want a compact greenhouse that feels secure and easy to live with, the ICON 6 6x4 makes efficient use of garden space without feeling restrictive. Its neat footprint suits smaller gardens, patios, and allotments, while the generous eaves height improves airflow and headroom for watering, potting, and everyday plant care. It delivers the practicality of a full-size greenhouse in a structure that sits naturally within your outdoor layout.

Built around a reinforced aluminium frame and glazed with 4mm twin-wall polycarbonate panels, this ICON 6 prioritises insulation, safety, and durability. The polycarbonate glazing helps reduce heat loss, softens direct sunlight, and offers strong impact resistance—making it well suited to family gardens and exposed locations. A low-threshold sliding door allows smooth access for trays, compost, and tools while preserving valuable internal growing space. For gardeners seeking a robust, low-maintenance 6x4 greenhouse with added thermal performance, the ICON 6 polycarbonate model offers reliable year-round use.

Frame colour and glazing options available

The Halls ICON 6 6x4 greenhouse range is available in several configurations to suit different gardens and growing priorities. In addition to this black powder-coated aluminium version, the ICON 6 can also be supplied with a classic green powder-coated frame or a clean mill aluminium finish, each offering excellent weather resistance and long-term durability.

Glazing options vary across the range. Traditional 3mm horticultural glass provides clear light and a classic greenhouse appearance, while 3mm toughened safety glass offers increased strength and safer breakage. This 4mm twin-wall polycarbonate option is ideal for gardeners prioritising insulation, reduced glare, and impact resistance, particularly in family gardens or more exposed settings. The flexibility across frame finishes and glazing types allows the ICON 6 6x4 to be tailored to a wide range of needs and budgets.

 

Halls ICON 6 6x4 greenhouse features

• Compact 6x4 footprint suited to small UK gardens and allotments
• 4mm twin-wall polycarbonate glazing for improved insulation and impact resistance
• Black powder-coated aluminium frame for long-lasting corrosion protection
• High eaves height for better headroom, airflow, and comfortable working conditions
• Low-threshold sliding door for easier access without reducing internal space
• Wide integrated gutters pre-fitted for 40mm downpipe connection
• Innovative G-clip glazing system for secure panel retention
• Reinforced roof ridge with optimised roof pitch for wind and snow performance
• Integrated panel stops to reduce movement and manage condensation
• Manufactured in Denmark with a 12-year frame 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 easier and safer to use day to day

Polycarbonate glazing for added safety and insulation

The 4mm twin-wall polycarbonate panels are highly impact resistant and help retain warmth, making them ideal for year-round growing and family-friendly gardens.

Higher eaves for improved comfort and airflow

Extra internal height creates a more open feel and allows warm air to circulate, supporting healthier growing conditions.

Powder-coated finish for lasting protection 

 The black aluminium frame resists corrosion, scratches, and wear, keeping maintenance to a minimum over time.

Low-threshold sliding door for smooth access

 Designed to make moving plants, tools, and compost easier without compromising growing space.

Stable aluminium frame with reduced upkeep

Provides long-term structural strength without the maintenance demands of timber alternatives.

Secure glazing system with reduced movement

The G-clip system holds polycarbonate panels firmly, minimising vibration and noise in windy conditions.

Integrated guttering for rainwater collection

Wide gutters are ready for connection to optional 40mm downpipes, supporting efficient water management.

 

Optional add-ons to complete your setup

The Halls ICON 6 greenhouse can be customised with a range of practical accessories, including a waterbutt and stand, downpipe kit, and louvre vent for improved airflow. Decorative cresting enhances the traditional greenhouse look, while aluminium capping improves glazing protection and long-term durability. These additions allow you to create a complete, well-matched greenhouse setup from the outset. Add-ons must be purchased at the same time as the greenhouse.

Who the ICON 6 6x4 polycarbonate greenhouse is best suited to

This model is ideal for gardeners who value insulation, safety, and low maintenance within a compact footprint. It suits seed propagation, herbs, seasonal crops, and overwintering plants, particularly where consistent temperatures and impact resistance are priorities. For larger-scale growing or defined zones, a 6x6 or 6x10 model may be more appropriate, but for most home gardeners, the ICON 6 6x4 polycarbonate greenhouse offers a practical, reassuring long-term solution.

 

Greenhouse specifications

• Model: Halls ICON 6 Greenhouse (6x4ft)
• Frame material: Black powder-coated aluminium
• Glazing: 4mm twin-wall polycarbonate panels
• Door type: Easy-glide sliding door
• Ventilation: Integrated roof vent (manual or auto-vent compatible)
• Gutters: Wide integral gutters for rainwater collection
• Optional accessories: Base plinth, capping, downpipe kit, and cresting
• Base plinth: Recommended galvanised steel base for secure installation

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.