Suspended ceilings, also known as drop ceilings, are a type of ceiling that is hung below the main structural ceiling. They consist of a grid system made from metal or other materials, which supports lightweight panels. This design allows for easy access to plumbing, electrical wiring, and HVAC systems located above the ceiling, making maintenance simpler. These ceilings are commonly used in commercial buildings, schools, and offices due to their versatility and aesthetic appeal. They can improve sound insulation and can be customized with various materials and finishes. Additionally, suspended ceilings can help with energy efficiency by providing insulation and reducing heating and cooling costs.