A sliding window, also known as a slider window or gliding window, is a type of window design that operates horizontally along a track. It consists of two or more sashes (moveable panels) that slide sideways to open or close the window.

The main features of sliding windows include:
  1. Horizontal Operation: Unlike traditional single or double-hung windows that open vertically, sliding windows slide horizontally along a track. This horizontal movement makes them easy to open and close with a simple push or pull.
  2. Sashes: Sliding windows typically have two sashes, one on the left and one on the right, which move horizontally past each other. Some designs may have additional panels.
  3. Ventilation: Sliding windows offer excellent ventilation options, as they can be partially opened or fully opened, allowing fresh air to flow into the room.
  4. Space-Saving: Since sliding windows don’t open outward or inward like casement or awning windows, they are ideal for spaces where there is limited clearance, such as in tight spaces or next to walkways, patios, or decks.
  5. Aesthetics: Sliding windows often have a modern and sleek appearance, making them a popular choice for contemporary homes and buildings.
  6. Easy Maintenance: Sliding windows are relatively easy to clean and maintain, as both sashes can be accessed from inside the room.

Sliding windows are commonly used in various settings, including residential homes, apartments, offices, and commercial buildings. They are available in different materials, such as vinyl, aluminum, wood, or fiberglass, each with its own set of advantages and considerations.