A bi-fold door is a type of door that consists of multiple panels that fold in on themselves when opened, creating a wide opening to connect indoor and outdoor spaces. These doors are commonly used in areas such as patios, balconies, or large living spaces to enhance airflow and natural light. Bi-fold doors are typically made from materials like wood, aluminum, or glass, and can be designed to stack to one side or both sides, depending on the configuration. They offer a modern and stylish option for maximizing space and creating a seamless transition between different areas of a home.

英語での「bi-fold door」の定義と意味

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