For individuals with metal allergies, contact with certain materials can cause skin irritation, rashes, or discomfort. A common concern is whether the steel used in urban outdoor furniture—like park benches, picnic tables, and bike racks—is safe. The direct answer is that most modern urban furniture is designed with allergy sensitivity in mind.
The primary culprit for metal allergies is nickel, a common alloy in some stainless steels. However, many municipalities and manufacturers specifically use nickel-free stainless steel (such as certain grades of 300-series steel) or powder-coated steel for public furniture.
Powder coating is a highly effective solution. This durable finish involves applying a dry powder electrostatically and then curing it under heat. It creates a thick, protective layer that completely seals the underlying metal, preventing it from coming into direct contact with skin. This makes powder-coated furniture an excellent hypoallergenic option.
When in doubt, look for furniture with a smooth, baked-on finish, as this indicates powder coating. For uncoated pieces, inquire about the steel grade. If you have a severe allergy, it's always best to test a small area first or choose furniture made from alternative materials like treated wood or aluminum, which are generally hypoallergenic.