The Types segment classifies OSB products into OSB‑1, OSB‑2, OSB‑3, and OSB‑4, each defined by performance criteria such as load capacity, moisture resistance, and intended end‑use. OSB‑1 is a low‑grade board suitable for non‑structural interior applications, contributing modestly to market volume but offering a price‑sensitive entry point. OSB‑2 meets basic load‑bearing requirements and is commonly used for wall sheathing in residential projects, thus representing a substantial portion of sales. OSB‑3, the most widely adopted grade, satisfies stringent structural standards for floor and roof sheathing, driving the bulk of revenue across both residential and commercial segments. OSB‑4 is a premium, high‑performance board with enhanced moisture resistance, targeted at industrial and high‑humidity environments, thereby generating higher per‑unit margins despite lower overall volume. This type‑based taxonomy clarifies how product differentiation aligns with specific application demands, influencing the total market size and growth dynamics.