Crates can be made of wood, plastic, metal or other materials. The term 'crate' often implies a large and strong container. Metal is rarely used because of its weight. When metal is used, a crate is often constructed as an 'open crate' and may be termed a 'cage'. Although a crate may be made of any material, for these reasons, the term 'crate' used alone often implies one constructed of wood.

Crates can be made of wood, plastic, metal or other materials. The term 'crate' often implies a large and strong container. Metal is rarely used because of its weight. When metal is used, a crate is often constructed as an 'open crate' and may be termed a 'cage'. Although a crate may be made of any material, for these reasons, the term 'crate' used alone often implies one constructed of wood.