A standard sofa, also known as a regular sofa or a
three-seater sofa, is a common type of seating furniture designed to comfortably accommodate three people. That is typically 84 inches wide, 38 inches deep, and 34 inches high. However, this can vary from brand to brand. Standard sofas are available in a variety of styles, including traditional, modern, and contemporary. They can also be made from a variety of materials, including leather, fabric, and microfiber.