Are pine outdoor tree boxes fire-rated for urban balcony use?

When selecting planters for urban balconies, fire safety is a critical consideration. Pine outdoor tree boxes are popular for their natural aesthetic, but are they fire-rated for balcony use? Generally, untreated pine is not inherently fire-resistant and may require additional treatments or coatings to meet fire safety standards. For urban areas with strict fire codes, it's advisable to opt for planters explicitly labeled as fire-rated or constructed from materials like metal, fiberglass, or treated wood. Always check local regulations and look for certifications to ensure compliance with fire safety requirements for balcony gardening.