<Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (March 2013) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (March 2013) (Learn how and when to remove this template message) </Td> </Tr> <P> A box - spring (or divan in some countries) is a type of bed base typically consisting of a sturdy wooden frame covered in cloth and containing springs . Usually the box - spring is placed on top of a wooden or metal bedframe that sits on the floor and acts as a brace, except in the UK where the divan is more often fitted with small casters . The box - spring is usually the same size as the much softer mattress that is placed on it . Working together, the box - spring and mattress (with optional bed frame) make up a bed . It is common to find a box - spring and mattress being used together without the support of a frame underneath, the box spring being mounted directly on casters standing on the floor . </P> <P> The purpose of the box - spring is threefold: </P>

What is a box spring called in the uk