A king size headboard is a popular choice for couples who want a spacious and comfortable bed. A king size headboard measures 150 cm (5’) across, which is 15 cm (6") wider than a double bed but the same width as a king size bed. A king size headboard can add more character and charm to your bedroom and can provide more support and comfort for your back and neck. British Bed Store offers a variety of king size headboards in different types and qualities, from rattan to fabric, from padded to buttoned. You can also find matching bed frames and mattresses to complete your bedroom set.