Standard king-size beds and mattresses are usually 5’0” wide x 6’6” long (152 x 200 cm). This makes them very popular for couples as it provides additional room to stretch out per person.
However, this measurement usually refers to the mattress size – the actual bed frame may be longer and/or wider, depending on the design.
For example:
Our king-size wooden bed frame with a headboard, the Parisienne Sleigh Bed, has a width of 1,660mm. Meanwhile, our metropolitan-inspired Studio Bed is slightly smaller at 1,622mm.