What Are Dimensions for King Size Bed?

The dimensions for a UK king size bed are 150cm by 200cm, or 5ft by 6ft 6in, but a mattress size alone is not enough to plan a bedroom. This guide sets out the four measurements that actually matter: mattress width and length for bedding, plus frame external width and length for floor planning, which commonly run to around 165cm by 215cm. We show what a king gives each sleeper compared with a double, explain how to measure a room step by step including walkway allowances and fixed obstructions, and cover the delivery route checks that catch people out with a rigid 200cm mattress. There is also guidance on UK versus other size conventions, how frame style changes the footprint, and correct duvet, sheet and pillow sizes....