Floor drains are widely used in bathrooms, kitchens and balconies, yet many people only use the general word "drain" and know little about their formal names.
The standard term across plumbing and construction industries is floor drain, referring to flush-mounted floor fixtures that drain surface water. In architectural drawings and official documents, it is also called in-floor drain, a technical name emphasizing its embedded installation.
They are categorized by shape: round floor drains are common in ordinary homes, while linear floor drains, with better drainage and a sleek look, are popular in modern houses and commercial wet areas. By usage, there are residential floor drains for family use and heavy-duty commercial floor drains for kitchens, malls and factories.
There are also specialized types. Shower floor drains focus on fast drainage, and concealed floor drains blend well with tiles for a neat decor. No matter the variants, floor drain is always the universal general term. Learning these names makes renovation and maintenance much easier.