Which type of door is classified as an exterior door?

An exterior door is specifically designed for outdoor access and is typically constructed to withstand various weather conditions and provide security. Exterior doors are generally made of sturdier materials, such as solid wood, fiberglass, or steel, to enhance their durability and insulation properties. They are also often equipped with weather stripping to prevent drafts and moisture from entering the home.

Options like a pocket door and a sliding door can also be used in exterior settings; however, they are commonly associated with interior spaces. A pocket door slides into a wall cavity and is primarily used to save space inside homes, while a sliding door often refers to patio doors that open to an outdoor area but can be classified differently based on their primary use cases and design. An interior door is specifically designated for use within a residential or commercial building and does not qualify as an exterior door due to its intended function and construction materials.

Thus, the classification of an exterior door specifically refers to doors that facilitate entry and exit to the outside, highlighting the importance of functionality and construction suited for outdoor environments.