A high-quality garden barbecue is not merely a tool for outdoor cooking, but also a visual centrepiece in the garden. The right design can blend seamlessly into the patio setting, suit your barbecuing habits, and create a safe and comfortable outdoor social space for family gatherings and get-togethers with friends.
Corten steel, with its distinctive rust-brown patina, is favoured by many garden enthusiasts and landscape designers. However, when selecting a weathering steel barbecue, one must look beyond mere appearance. The dimensions of the cooking surface, the base structure, the unit’s weight, long-term maintenance requirements and site access conditions are all key factors that must be carefully considered.
This article uses AHL’s BG series of weathering steel bbq grill as a reference, comparing the various models from BG1 to BG8 to help private garden owners, landscape designers, retailers and wholesale buyers quickly select the most suitable product. It also outlines the key specifications to confirm before placing an order, with a particular focus on distinguishing between the decorative exterior material and the cooking surface that comes into direct contact with food.
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The custom Corten BBQ grill features a warm, weathered rust colour that blends beautifully with the natural stone, pressure-treated timber, gravel and border plants.
Their appearance will continue to evolve in response to the alternating wet and dry conditions of the outdoor environment; the rusted texture of each barbecue is unique, unlike powder-coated products which retain a uniform, unchanging finish year after year.
When purchasing, ensure you understand the condition of the product upon delivery: confirm whether it is a pre-weathered version or one that will gradually develop a rust patina after arrival. Also, be mindful of rust-stained water runoff near light-coloured paving; in the early stages, rainwater washing over a new barbecue may carry coloured rust-stained water, which could stain light-coloured stone or concrete surfaces.
The AHL BG series is divided into black high-temperature baked enamel models and rust-finished weathering steel models. BG1, BG3 and BG7 are the black baked enamel models, whilst BG2, BG4, BG5, BG6 and BG8 are the rust-finished weathering steel models.
Here is a key point to bear in mind to avoid pitfalls: appearance does not equate to material. The base material for models BG1, BG3 and BG7 is predominantly carbon steel, not weathering steel. Before placing an order, be sure to confirm the base material, coating and the material of high-temperature components; do not assume that all black models are weathering steel barbecues.
If you favour a natural, rustic aesthetic, a country-style look or a garden with an organic landscape, opt for the rust-finished weathering steel models; for gardens with a modern, minimalist style and bold architectural lines, you might consider the black powder-coated models.
The entire range comes with a 10mm-thick cooking plate as standard; however, the material of the cooking plate may not be the same as that of the outer casing. Please ensure you confirm the material of the food-contact surface separately when placing your order.
The BG1 features a black painted finish, whilst the BG2 has a weathering steel rusted finish. Both are available in two diameter sizes—85 cm and 100 cm—with a total height of 100 cm. The two models differ in weight; the distinction is not merely a matter of colour, but also lies in their structure and base materials.
Suitable for users who do not wish to take up too much garden space and do not require side storage compartments, these are entry-level freestanding barbecues for small patios.
The BG3 features a black lacquer finish, whilst the BG4 has a weathered steel finish; both extend to a length of 130 cm and offer a choice of grill plate diameters of 85 cm or 100 cm.
They come with built-in storage space for firewood and barbecue tools, making them ideal for frequent outdoor gatherings. Safety reminder: It is essential to verify that the storage compartment is physically separated from the high-temperature firebox; do not assume that all shelves can safely hold flammable fuel whilst the barbecue is in use.
The BG5 and BG6 share the same specifications: 100 cm in diameter and 90 cm in height, both featuring a rust-finished weathering steel surface. The two models feature different base designs, creating a distinct visual distinction; their weights are 115 kg and 135 kg respectively.
These products are positioned as landscape art pieces and are suitable for projects where the barbecue is intended to serve as a central focal point in the garden. When selecting a model, in addition to appearance, one should also assess stability, access for ash removal and maintenance, and delivery and installation requirements.
The BG7 features a black geometric design, whilst the BG8 combines a geometric base with a weathering steel patina finish. Both measure 100 cm in diameter and 90 cm in height, with weights of 135 kg and 125 kg respectively.
With their clean, geometric lines, these are ideally suited to modern courtyards, show gardens and commercial terrace projects. Prior to procurement, verify the structural craftsmanship and high-temperature resistance requirements of the coating to ensure a consistent style across the entire landscape installation.
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It is a common misconception for people to focus solely on the diameter of the cooking grate whilst overlooking the space required for operation.
Although the 85cm versions are relatively compact, they are still quite heavy, with the BG1 weighing approximately 83kg and the BG2 approximately 73kg. When selecting a location, in addition to the space required for the barbecue itself, you must also allow for space for operation, serving food, storing utensils and moving around.
At the same time, adhere to the manufacturer’s safety clearance guidelines, keep the barbecue away from flammable materials, and ensure it is out of reach of children and pets.
If you frequently host large gatherings, prioritise the 100cm diameter versions. Please note: the outer diameter does not equate to the effective cooking area.
We recommend requesting a layout diagram from your supplier to confirm the central opening and optional grill grate configurations, so you can determine whether meals for multiple people can be cooked in a single session or if cooking will need to be done in batches.
The extended BG3 and BG4 models feature built-in storage, making them ideal for large gardens with a dedicated outdoor cooking area.
Before placing an order, measure the full footprint of the base and check gateways and corner passages in advance to ensure the barbecue can be delivered without difficulty. Provide the manufacturer with a layout plan of your garden to facilitate a comparison between the compact pillar-style models and the storage models.
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The black finish complements dark-coloured outdoor furniture, window frames and architectural lines, creating a clean and understated look.
Pay particular attention to three key points: the coating’s temperature resistance, permitted cleaning methods, and repair options in the event of knocks or scrapes. It is essential to confirm which parts are coated and whether the coating can withstand the high temperatures of barbecuing over the long term, to prevent peeling or flaking.
The warm rust tones harmonise beautifully with natural timber, gravel and native plants, making it a popular choice amongst landscape designers for creating natural gardens.
Confirm the delivery condition in advance: whether the panels have undergone pre-weathering or are brand new, requiring the rust patina to develop gradually within the garden.
Maintaining the rusted surface of the outer casing is a separate process from seasoning a cooking pan; ensure that rust-maintenance agents do not come into contact with the surface that touches food.
If opting for a rusted-finish model, plan the drainage layout carefully, keeping it away from light-coloured paving. Do not allow fallen leaves or soil to accumulate at the base of the barbecue for extended periods, as persistent dampness will accelerate abnormal corrosion. When choosing a rusted-finish model, you must accept that it requires reasonable maintenance; there is no such thing as a completely maintenance-free weathering steel product.
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The above serves only as a guide for model selection; the final solution must still be determined based on on-site conditions and actual product specifications. For dealers, a diverse product range is better suited to meeting the varied needs of different customers than relying on a single best-selling model.
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The BG series offers both black lacquered and weathering steel rusted finishes, along with a variety of sizes and base structures. Customers can select directly from existing models rather than customising from scratch, resulting in greater efficiency in product selection.
Dimensions, base styles, grill plates and storage compartment structures can be modified according to requirements. Please note: any alterations will affect the product’s weight, assembly and performance; for customised orders, it is essential to obtain signed and confirmed production drawings and updated specifications—do not rely solely on verbal communication.
For garden retailers, outdoor brands and distributors, we are open to discussions regarding models, minimum order quantities, material certificates, packaging, the scope of private labelling, quality inspection, lead times, after-sales spare parts and warranty terms. Private labelling services require a separate agreement on the scope and are not automatically included in standard catalogue quotations.
Please provide the model number, dimensions, surface finish, purchase quantity, target market and customisation requirements to request a formal quotation from our sales team. At the same time, please confirm any items not included in the quotation to avoid discrepancies with the catalogue specifications.
Corten steel can be a suitable material for the exterior of an outdoor BBQ grill, offering a distinctive weathered appearance. However, the complete design matters: check drainage, firebox construction, stability and maintenance access. The cooking plate should be separately specified for food contact rather than assumed to use the same material as the exterior.
Choose a grill with a dedicated cooking plate or grate specified for food contact. Food should not touch the decorative rusted exterior, and patina treatments should stay away from cooking components. AHL describes its cooking surfaces as separate from the Corten body; confirm the actual material and care instructions for your selected model.
Choose by usable cooking area, menu and available garden space—not outer diameter alone. AHL’s BG1 and BG2 list 85cm and 100cm configurations, providing two options to compare. Request the cooking-plate drawing, including the central opening, and check operating clearance before deciding which size suits your household.
There is no single reliable lifespan for every Corten grill. Service life depends on construction, exposure, drainage, frequency of use and maintenance. The exterior, firebox and cooking plate may also age differently. Ask about component warranties and replacement availability rather than relying on an unqualified promise that the complete grill will last a fixed number of years.
A grill designed for outdoor installation may remain outside, subject to its manufacturer’s instructions. Keep drainage clear, prevent damp ash from accumulating and protect the cooking plate appropriately. For extended storage, ask whether a ventilated cover or shelter is recommended; avoid wrapping the grill in a way that traps moisture.
Treat the exterior and cooking surface separately. Remove exterior dirt using the manufacturer’s recommended gentle method. For a carbon-steel cooking plate, remove food residue while it is safely warm, dry it and apply a thin layer of suitable cooking oil. Remove ash only after it has cooled completely.
The cooking plate may need seasoning; the decorative Corten exterior does not use the same process. Follow the instructions for the actual plate material. AHL recommends a thin film of cooking oil for its relevant cooking surfaces, but seasoning requirements should be confirmed for the selected model. Never substitute rust acceleration for food-safe seasoning.
Some Corten BBQ grills are designed for wood, charcoal or both, but fuel compatibility is model-specific. Confirm approved fuels and loading limits before purchase. Do not assume every grill can use the same fuel simply because it has a similar bowl or plate design. AHL publishes wood-fire cooking guidance for some configurations.
It can. During early weathering, the exterior may release rust-coloured particles or runoff that marks nearby surfaces. Plan the installation around sensitive paving and ask the supplier about the supplied patina condition, drainage and suitable protection. A rusty appearance should not be interpreted as a guarantee that runoff has stopped.
Black and rusty describe finishes, not necessarily identical materials. AHL lists black-painted and rusty models, with published material descriptions that differ between configurations. Confirm the substrate, coating and care requirements for each product. Choose by verified construction and cooking specifications as well as garden style.
A 10mm plate is a specification to evaluate—not a standalone guarantee of better cooking. Material, plate geometry, support and heat management also affect performance. AHL lists 10mm cooking plates for the compared models; request the usable dimensions, material and operating instructions before comparing them with another grill.
Contact AHL with your preferred models, quantities, destination market and branding requirements. Ask for written confirmation of available customization, packaging, inspection, warranty and delivery terms. Keeping this commercially focused question at the end provides a natural inquiry route without making the entire FAQ read like a product catalogue.
The best weathering steel barbecue is not necessarily the one with the largest cooking surface or the most eye-catching design, but rather the product that best suits your barbecuing needs, garden layout and on-site installation conditions.
You may compare and select from the compact BG1/BG2 models, the storage-friendly BG3/BG4 models, or the artistically designed BG5–BG8 models. Before placing an order, please carefully verify the casing material, cooking plate specifications, net weight and safety clearances.
If you are selecting a weathering steel barbecue for your garden or a project, or are planning to stock them for resale, please feel free to contact AHL Corten Group. Provide your preferred models, dimensions, surface finishes and purchase quantities to receive product specifications and a quotation.
