I only make "throws" myself so I don't know actual sizes. What I can contribute is from friends who have had the problem of making set sizes that should be bigg enough. Newer mattresses are thicker than original ones. So it takes more to cover a bed. If you are making one for a particular person or bed. Find out what size is required. Some people like them to hang like a coverlet with only a 10" drop, others want to sleep under it, and need more for wiggle room.