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.

A loveseat is a type of seating furniture designed to comfortably accommodate two people. It is smaller in size compared to a standard sofa, making it a popular choice for smaller living rooms, apartments, or as an additional seating option in larger spaces. A loveseat is also commonly referred to as a two-seater sofa or a settee. It is generally measured around 48 to 72 inches (122 to 183 cm) in width, making it suitable for seating two people side by side. The depth of a loveseat ranges from 28 to 36 inches (71 to 91 cm).