How Big Is A California King Mattress. While a standard king size bed is 76 inches wide by 80 inches long the california king bed dimensions are 72 inches by 84 inches so while you get extra length you lose sleeping width. The king mattress is 76 inches wide and 80 inches long while the cal king is 72 inches wide and 84 inches long.
Perhaps the most common king variation is the california king size mattress. The california king s advantage over a standard king and the main difference in the two sizes is in its length. An ideal room to accommodate a california king size mattress is 13 by 19 feet.
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While a standard king size bed is 76 inches wide by 80 inches long the california king bed dimensions are 72 inches by 84 inches so while you get extra length you lose sleeping width. It s 4 inches longer than a king with the tradeoff that it s also 4 inches narrower so a california king measures 72 inches by 84 inches. Perhaps the most common king variation is the california king size mattress. A king can fit in a room that is 10 feet by 12 feet up to a room that is 13 feet by 19 feet.