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In general, the rough-in measurements from the centre line of the water closet outlet to the finished wall will be how many inches?

  1. 8

  2. 10

  3. 12

  4. 14

The correct answer is: 12

In general, the rough-in measurements for a water closet outlet should be 12 inches from the centre line of the outlet to the finished wall. This is the standard measurement for most toilets and is also the minimum requirement in building codes. Choosing options A, B, or D will either result in an incorrectly installed toilet or may not meet building code specifications. It is important to follow the recommended measurements for proper installation and functionality of the toilet.