Multifunctional furniture is furniture with several functions combined. The functions combined vary, but a common variant is to incorporate an extra storage function into chair, tables, and so forth, making them so-called storage furniture. It more efficiently uses up living space. Lack of space can be an important reason for choosing such furniture, but combination furniture is also seen in larger homes for more space-efficient utilization. Historically, furniture with transforming mechanisms was called "mechanical furniture".