You know the drill.
Friday afternoon around 4pm… the general contractor for the new college student services building phones you and says the IOR is being unreasonable and is demanding that the newly installed water closet in the accessible toilet compartment be removed and completely reworked. Why? The IOR measured the clearance between the ceramic wall tile and the centerline of the water closet and it came out to 17-1/2″… 1/2″ short of the code required dimension of 18″. Is the IOR correct? Is the dimension finite?
Please take a few minutes to read the DSA Interpretation of Regulations document IR 11B-8, “Use of Predetermined Construction Tolerance Guidelines for Accessibility” to see what their take on the issue is. Understanding the rules makes the design and documentation process easier.