Notes to Table 9.15.4.2.B.: 
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 permitted 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. (4) Steel lintels described in Sentences (2) and (3) shall, (a) have even and level bearing and shall have not less than 150 mm length of bearing at end supports, and (b) bear on masonry, concrete or steel. (5) Steel angle lintels supporting masonry shall be primed or painted or otherwise protected from corrosion. (6) Steel beams supporting masonry veneer and wood stud walls above openings shall conform to Table 9.20.5.2.C. (7) Steel beams described in Sentence (6) shall be supported at each end by a steel column, and have a minimum 6 mm plate welded to the flange to support the masonry veneer. Table 9.20.5.2.A.   Loose Steel Lintels for Masonry – No. & Size of Angles Required(7) Forming Part of Sentence 9.20.5.2.(2)  Column 1

Column 2

Column 3

Column 4

Col. 5

Col. 6

Col. 7

Col. 8

Col. 9

Col. 10

Col. 11


Clear Span(1)(3)

Exterior Angles, mm

Wall Thickness,mm

Interior Angles, mm


for Brick

for Stone

Maximum Floor Loads per Metre of Span in Newtons(2)(4)(5)


100 mm

100 mm + 50 mm stone facing


None

3 650

7 300

10 950

14 600

18 250

21 900


No Floor Load


1 200 mm or less

L-90 × 90 × 6

L-125 × 90 × 8

203

L-90

L-90

L-90

L-100

L-125

L-125

L-125


 

× 90

× 90

× 90

× 90

× 90

× 90

× 90


 

× 6

× 6

× 8

× 8

× 8

× 10

× 13


305

2Ls-90

2Ls-90

2Ls-90

2Ls-90

2Ls-90

2Ls-100

2Ls-100


 

× 90

× 90

× 90

× 90

× 90

× 90

× 90


 

× 8

× 8

× 8

× 8

× 8

× 8

× 8


1 500 mm

L-90 × 90 × 8

L-125 × 90 × 8

203

L-90

L-90

L-125

L-125

L-125

L-150

—


 

× 90

× 90

× 90

× 90

× 90

× 90

—


 

× 8

× 8

× 8

× 10

× 13

× 10

—


305

2Ls-90

2Ls-90

2Ls-90

2Ls-125

2Ls-125

2Ls-125

2Ls-125


 

× 90

× 90

× 90

× 90

× 90

× 90

× 90


 

× 8

× 8

× 8

× 8

× 8

× 8

× 10


1 800 mm

L-100 × 90 × 8

L-125 × 125 × 8

203

L-100

L-125

L-125

L-150

 

 

 


 

× 90

× 90

× 90

× 100

 

 

 


 

× 8

× 8

× 8

× 10

 

 

 


305

2Ls-100

2Ls-100

2Ls-125

2Ls-125

2Ls-125

2Ls-150

2Ls-150


 

× 90

× 90

× 90

× 90

× 90

× 100

× 100


 

× 8

× 8

× 8

× 8

× 10

× 10

× 10


2 100 mm

L-100 × 90 × 8

L-125 × 125 × 8

203

L-100

L-125

L-150

 

 

 

 


 

× 90

× 90

× 100

 

 

 

 


 

× 8

× 10

× 10

 

 

 

 


305

2Ls-100

2Ls-125

2Ls-125

2Ls-150

2Ls-150

 

 


 

× 90

× 90

× 90

× 100

× 100

 

 


 

× 8

× 10

× 10

× 10

× 10

 

 


2 400 mm

L-125 × 90 × 8

L-125 × 125 × 8

203

L-125

L-150

 

 

 

 

 


 

× 90

× 100

 

 

 

 

 


 

× 8

× 10

 

 

 

 

 


305

2Ls-125

2Ls-125

2Ls-150

 

 

 

 


 

× 90

× 90

× 100

 

 

 

 


 

× 8

× 13

× 10

 

 

 

 


2 700 mm

L-125 × 90 × 10

L-125 × 125 × 10

203

L-125

 

 

 

 

 

 


 

× 90

 

 

 

 

 

 


 

× 10

 

 

 

 

 

 


305

2Ls-125

2Ls-150

 

 

 

 

 


 

× 150

× 100

 

 

 

 

 


 

× 10

× 10

 

 

 

 

 


3 000 mm

L-150 × 100 × 10

L-125 × 125 × 13

203

L-150

 

 

 

 

 

 


 

× 100

 

 

 

 

 

 


 

× 10

 

 

 

 

 

 


305

2Ls-150

 

 

 

 

 

 


 

× 100

 

 

 

 

 

 


 

× 10