roofbeam

Example:The timber supports the roof of the barn.

Definition:a large piece of wood, especially one cut from a tree and used as a structural element in building

Example:The old house had beautifully carved beams running across the ceiling.

Definition:large, strong pieces of wood or metal used to support the roof

Example:A long beam supported the heavy roof of the warehouse.

Definition:a very long beam used as a support in a roof or other structure