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Continue to ChatMinimum Bathroom Door Size - Choosing The Right Size Pocket Door Kit Pocket Door Kit Sizes Pocket Door Shop - Feb 02, 2022 · the minimum allowed fan size is 50 cfm, so if your bathroom is, for example, only 42 square feet, you still need a 50 cfm fan. - https://evesanzana.blogspot.com/2022/02/minimum-bathroom-door-size-choosing.html