Question: what is the width of a queen size box spring?
Answer: Queen box spring dimensions Queen box springs measure 60" X 80" for standard queen beds, 60" X 84" for California queen beds, 66" X 80" for Olympic queen beds and approx. 30" X 80" for split queen beds. In terms of depth or thickness, queen box springs range from 8 inches deep to 12 inches deep.