How wide should the width opening be for a 28 inch door?

The rough opening width for a 28-inch door should typically be about 2 to 2.5 inches wider than the door itself to allow for proper framing and clearance. This means the opening should be approximately 30 to 30.5 inches wide. Additionally, ensure there is enough space for the door hardware and shims during installation. Always check local building codes for specific requirements.