Custom steel sheet and plate

Configure your custom steel cut in just a few clicks!
Custom steel sheet and plate
Plaque d'acier décapé et huilé

Raw Steel

4.9 (205 avis)
  • Very good for welding
  • Good mechanical resistance
  • Wear and shock resistance
From
33.3
€ VAT incl
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Plaque d'acier galvanisé

Galvanized steel

4.9 (95 avis)
  • Hot galvanised
  • Doesn't rust
  • Mechanical resistance
From
41.58
€ VAT incl
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Acier brut antidérapant S235JR

Teardrop steel

5.0 (84 avis)
  • Very good for welding
  • Good mechanical strength
  • Wear and shock resistant
From
45.12
€ VAT incl
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Plaque d'Acier corten

Corten steel

4.9 (68 avis)
  • Decorative
  • Can be easily worked
  • Perfect for outdoor use
From
41.64
€ VAT incl
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John's advice: which steel plate to choose?
John,
Expert in Metallurgy and Precision Cutting

John's advice: which steel plate to choose?

Steel is the material of absolute strength. The strongest and most affordable of our metals, it comes in 4 grades. Raw steel (2 to 20 mm) is the professionals' choice for its exceptional mechanical strength, but it will always rust if not painted or treated. Galvanised steel (1 to 3 mm), protected by a zinc layer, offers excellent rust resistance at a moderate price. Checker plate steel (5 mm) combines strength and slip resistance for floors and hatches. Corten steel (1.5 mm) deliberately develops a protective orange patina outdoors.

💡 Workshop tip: for outdoor use, galvanised steel (minimum 1.5 mm) offers the best value for money: it won't rust and is easy to paint. Corten steel (1.5 mm) arrives unrusted and will develop its orange patina over a few months depending on weather exposure. For indoor use, raw steel is unbeatable: strong, magnetic and economical.

Unlike aluminium or stainless steel, steel is heavy: plan for sturdy mechanical fixings, especially for thicknesses above 3 mm. For large surfaces, don't hesitate to split your project into several plates.

Steel characteristics

Steel, an alloy of iron and carbon, is valued for its high tensile strength, ductility, and ability to withstand wear and impact. Its properties can be adjusted through heat treatments and specific alloys, making steel ideal for varied applications ranging from construction to the automotive and aerospace industries.

For custom cutting, steel offers exceptional flexibility, allowing for precise cuts adapted to specific needs, while ensuring increased durability and corrosion resistance when treated with protective coatings like galvanization or epoxy paint.

What are the different steel sheets?

Raw steel is the quintessential steel sheet: it is the base for many projects. Its appearance is raw, slightly grey and varnished on one side. Depending on its thickness, this sheet can withstand vehicle traffic, abrasion, and impacts.

Galvanized steel sheets are anti-corrosion treated for optimal durability indoors and outdoors. Ideal for projects requiring protection against bad weather.

Teardrop steel (checker plate), renowned for its anti-slip properties, is ideal for floor surfaces and door sills, ensuring safety and functionality in your spaces.

Corten steel, very trendy, naturally oxidizes to offer a unique rusted appearance. Perfect for gardens (flower planters, braziers) and Loft-style interior decoration. This solid and aesthetic steel blends harmoniously into modern and rustic environments.

What are the thicknesses of a steel sheet?

We offer a wide range of raw steel thicknesses to meet your specific projects:

  1. Thin sheets: 1mm, 1.5mm, 2mm
  2. Medium sheets: 3mm, 4mm, 5mm, 6mm, 8mm
  3. Thick sheets: 10mm, 15mm, 20mm
FAQ

Ça répond à la question ?

Retrouvez les réponses à vos questions les plus fréquentes sur notre boutique en ligne.

Ordering is done entirely online via the John Steel configurator. You select your finish from the available steel sheets (raw, pickled, galvanised, Corten steel), enter your dimensions (length, width, thickness in millimetres), add any options (holes, bespoke shapes, bending), and the price is calculated in real time. Once your configuration is confirmed, you add it to the basket, proceed to secure payment, and your order is sent to the workshop. You will receive a confirmation with the estimated manufacturing lead time. The General Terms and Conditions of Sale and legal notices are accessible directly on the website prior to any purchase.

Lead times vary according to the complexity of the custom sheet-metal cut and the thickness selected. For a standard order, allow 3 to 5 working days for production. Thick parts or those with multiple options may require up to 7 working days. Delivery in France then takes 1 to 2 working days depending on your location. Indicative delivery times are displayed in the configurator before you confirm your cart. Our team is available Monday to Friday by phone or via the contact form for any questions about the status of your order.

Yes. The configurator lets you customise your sheet beyond a simple rectangle: L-shaped and U-shaped cuts, notches, round shapes, centred cut-outs, and the option of drilled holes positioned according to your sides. Standard drilling can be configured directly online; drilling by quote applies to more complex geometries. Bending is available on certain thicknesses. For any project requiring a specific build, our customer service team can assist you and provide a quote with a drawing.

Yes, raw steel oxidises without surface treatment, especially in the presence of humidity or cold. For indoor use in a dry environment, a simple protective oil or varnish is enough to limit oxidation. For outdoor use or in damp environments, it is recommended to choose a galvanised or corten finish directly, whose corrosion resistance is built into the material. Raw steel intended for painting generally needs no additional pre-treatment. During transport, a PVC film may be applied to certain sheets to prevent any risk of scratching.

In everyday use, the two terms refer to the same product. Technically, "sheet" is used for thicknesses below 3 or 5 mm, and "plate" above that, but this boundary varies between professionals and metals. At John Steel, steel sheet and steel plate refer to the same range of configurable steel sheets across all available thicknesses. The term used in your search will not change the result or the ordering process.

Yes, with no minimum order quantity. John Steel is designed precisely for single-unit needs: a private customer ordering a backsplash, a craftsman needing a replacement part for a metalwork job, an architect testing a material on a building project. You order a one-off sheet to the exact dimensions you need, with the same level of precision as a production run. No volume constraint is applied.