How should I choose between plywood and particle board?

Choosing by space is more practical than choosing by material: locations that are damp or subject to large temperature swings (kitchen sink cabinets, balcony cabinets, areas around bathrooms) are better suited to materials with stable moisture resistance; for wardrobes and bookcases in dry rooms, you can choose boards with better flatness according to your budget. Mixing materials within the same home is also a common practice.