Steel Beam Design

Number of Storeys
Beam Size
Width of Floor to Be Supported
Min Depth
Min Mass
Section
m
m
m
m
m
mm
kg/m

2.4
3
3.6
4.2
4.8

Maximum Beam Span (between supports)
1
101
11.46
S4x7.7
4.06
3.63
3.33
3.07
2.9
127
14.88
S5x10
5.11
4.57
4.19
3.89
3.63
152
18.6
S6x12.5
6.25
5.61
5.16
4.77
4.47
152
23.07
W6x16
7.01
6.3
5.77
5.38
5.03
203
25.3
W8x18
8.28
7.47
6.81
6.33
5.87
203
27.38
S8x18.4
8.66
7.8
7.01
6.63
6.2

Maximum Beam Span (between supports)
2
101
11.46
S4x7.7
3.08
2.74
2.52
2.34
2.18
127
14.88
S5x10
3.89
3.48
3.18
2.94
2.74
152
18.6
S6x12.5
4.77
4.27
3.91
3.61
3.38
152
23.07
W6x16
5.38
4.8
4.39
4.06
3.81
203
25.3
W8x18
6.33
5.66
5.18
4.8
4.5
203
27.38
S8x18.4
6.63
5.96
5.44
5.03
4.72
S.I Units

 

Number of Storeys
Beam Size
Width of Floor to Be Supported
Min Depth
Min Mass
Section
ft
in
ft
in
ft
in
ft
in
ft
in
in
lb/ft

7
10
9
10
11
10
13
9
15
9

Maximum Beam Span (between supports)
1
4
7.7
S4x7.7
13
4
11
11
10
11
10
1
9
6
5
10.0
S5x10
16
9
14
12
13
9
12
9
11
11
6
12.5
S6x12.5
20
6
18
5
16
11
15
8
14
8
6
15.5
W6x16
22
12
20
8
18
11
17
8
16
6
8
17.0
W8x18
27
2
24
6
22
4
20
9
19
3
8
18.4
S8x18.4
28
5
25
7
22
12
21
9
20
4

Maximum Beam Span (between supports)
2
4
7.7
S4x7.7
10
1
8
12
8
3
7
8
7
2
5
10.0
S5x10
12
9
11
5
10
5
9
8
8
12
6
12.5
S6x12.5
15
8
14
0
12
10
11
10
11
1
6
15.5
W6x16
17
8
15
9
14
5
13
4
12
6
8
17.0
W8x18
20
9
18
7
16
12
15
9
14
9
8
18.4
S8x18.4
21
9
19
7
17
10
16
6
15
6
Imperial Units

Technological Design Home