The lifespan of poultry cages directly impacts operational efficiency and cost control in egg production. This article explores the proven combination of Q235 steel, hot-dip galvanizing, and aluminum-zinc alloy coating—backed by ISO standards—to extend cage life up to 20 years. Learn how proper material selection and routine maintenance reduce replacement costs, prevent downtime, and improve long-term profitability. Includes a practical checklist, real-world case study, and actionable tips for maximizing your investment in layer housing systems.