A ladder is a tool used to reach high places. It typically consists of two vertical side rails connected by horizontal rungs. Ladders can be made from various materials, including wood, aluminum, and fiberglass, and come in different types, such as step ladders and extension ladders. They are commonly used in construction, maintenance, and household tasks. Safety is important when using a ladder. Users should ensure the ladder is on a stable surface and follow weight limits. Proper positioning and maintaining three points of contact can help prevent falls. Ladders are essential for tasks like painting, cleaning, and accessing roofs or attics.