This is from Ontario building code part 9:
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9.20.5.2. Lintels or Arches
(1) Masonry over openings shall be supported by steel, reinforced concrete lintels or masonry arches designed to
support the imposed loads.
(2) Except as provided in Sentences (3) and (6), steel angle lintels supporting masonry above openings shall conform to
Table 9.20.5.2.A.
(3) Steel angle lintels supporting masonry veneer above openings shall conform to Table 9.20.5.2.B.
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Table 9.20.5.2.A. & B. are here:
The following are 2 questions with answers from a building code training materials:
My questions: why is 9.20.5.2.A. applied in question 1? Is "100 mm brick" in question 1 not veneer, while "90 mm brick veneer" is?
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1. A 2 100 mm opening in an exterior masonry wall and supporting 100 mm brick with no other
load is required to have a loose steel lintel comprising:
a) L-90 mm × 90 mm × 6 mm
b) L-125 mm × 90 mm × 8 mm
c) L-125 mm × 125 mm × 8 mm
d) L-102 mm × 89 mm × 7.9 mm
Answer: d) L-102 mm × 89 mm × 7.9 mm
References:
Sentence 9.20.5.2.(1), (2)→ Table
9.20.5.2.A., Row 4 Column 2
2. A 2 100 mm opening in an exterior wood-framed wall and supporting 90 mm brick veneer
with no other load is required to have a loose steel lintel comprising:
a) L-89 mm × 89 mm × 6.4 mm
b) L-125 mm × 90 mm × 8 mm
c) L-125 mm × 125 mm × 8 mm
d) L-100 mm × 90 mm × 8 mm
Answer: a) L-89 mm × 89 mm × 6.4 mm
References:
Sentence 9.20.5.2.(1), (2) → (3) →
Table 9.20.5.2.B., Row 2 Columns 1, 2, 3, and 5
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9.20.5.2. Lintels or Arches
(1) Masonry over openings shall be supported by steel, reinforced concrete lintels or masonry arches designed to
support the imposed loads.
(2) Except as provided in Sentences (3) and (6), steel angle lintels supporting masonry above openings shall conform to
Table 9.20.5.2.A.
(3) Steel angle lintels supporting masonry veneer above openings shall conform to Table 9.20.5.2.B.
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Table 9.20.5.2.A. & B. are here:
The following are 2 questions with answers from a building code training materials:
My questions: why is 9.20.5.2.A. applied in question 1? Is "100 mm brick" in question 1 not veneer, while "90 mm brick veneer" is?
--------------------------------------------------------------------------------------------------------------------------------
1. A 2 100 mm opening in an exterior masonry wall and supporting 100 mm brick with no other
load is required to have a loose steel lintel comprising:
a) L-90 mm × 90 mm × 6 mm
b) L-125 mm × 90 mm × 8 mm
c) L-125 mm × 125 mm × 8 mm
d) L-102 mm × 89 mm × 7.9 mm
Answer: d) L-102 mm × 89 mm × 7.9 mm
References:
Sentence 9.20.5.2.(1), (2)→ Table
9.20.5.2.A., Row 4 Column 2
2. A 2 100 mm opening in an exterior wood-framed wall and supporting 90 mm brick veneer
with no other load is required to have a loose steel lintel comprising:
a) L-89 mm × 89 mm × 6.4 mm
b) L-125 mm × 90 mm × 8 mm
c) L-125 mm × 125 mm × 8 mm
d) L-100 mm × 90 mm × 8 mm
Answer: a) L-89 mm × 89 mm × 6.4 mm
References:
Sentence 9.20.5.2.(1), (2) → (3) →
Table 9.20.5.2.B., Row 2 Columns 1, 2, 3, and 5
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