Beam types are structural elements that support loads and span distances. The most common types include simply supported beams, which rest on two supports, and cantilever beams, which are fixed at one end and free at the other. Other types include continuous beams, which extend over multiple supports, and fixed beams, which are anchored at both ends. Each beam type has unique characteristics that affect its performance and suitability for different applications. For instance, steel beams are often used for their strength and durability, while wood beams are favored for their aesthetic appeal in residential construction. Understanding these types helps in selecting the right beam for a project.