Multifunctional furniture is furniture with several functions combined.[1] 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.[2] It more efficiently uses up living space.[3] 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.[1] Historically, furniture with transforming mechanisms was called "mechanical furniture".