Horizontal bi-fold doors are usually found in large facilities (such as airport hangars) and malls. However, they can also be wonderful additions to small buildings, establishments, and even homes. In most cases, these types of doors are installed in the garage, although they can also be found in smaller scales indoors – although in the case of indoor installations, a vertical bi-fold door would be more common and a more suitable option. Vertical bi-fold doors are usually used as doors for large cabinets or as room dividers. They can also be used as alternative to doors. For instance, many homeowners with very limited space choose vertical bi-fold doors as opposed to full swing doors since that former helps to save more space than the latter.