70 mm thick solid masonry units maximum projection?

[sunyaer]

These are from Ontario building code:
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9.20.8.5. Projection of Masonry Veneer Beyond Supporting Members
(1) Masonry veneer of solid masonry units resting on a bearing support shall not project more than one-third of the
thickness of the veneer. (See Appendix A.)

(2) Where the masonry veneer described in Sentence (1) is rough stone masonry,
(a) the projection shall be measured as the average projection of the units, and
(b) the thickness of the veneer shall be measured as the average thickness of the veneer.
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9.20.12.3. Corbelling for Masonry Veneer
(1) Masonry veneer resting on a bearing support shall not project more than 25 mm beyond the supporting base where
the veneer is at least 90 mm thick, and 12 mm beyond the supporting base where the veneer is less than 90 mm thick.

(2) In the case of rough stone veneer, the projection, measured as the average projection of the stone units, shall not
exceed one-third the bed width beyond the supporting base.
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Question: Masonry veneer of 70 mm thick solid masonry units resting on a bearing support, what is the maximum projection beyond supporting members?
Answer: 1) 12 mm, as per 9.20.12.3 (1)?
2) 23 mm as per 9.20.8.5.(1)?

 

[tmurray]

The question would be if it is in a corbel or not. If it is in a corbel (like a masonry arched opening), 9.20.12.3 would apply. Otherwise, 9.20.8.5 would apply.