Structural supports are essential components of any building or structure, providing stability and strength. Cantilevers, BEAMS, and I-bars are all types of structural supports used in construction. Cantilevers are BEAMS that extend beyond a support wall, providing additional support for the structure. BEAMS are horizontal members that span between two supports, transferring loads from one point to another. I-bars are steel bars with an I-shaped cross section, used to provide additional support and stability.