U sections - GU® sections

Section Dimensions Properties
b h tf tw A Gsp Gw Iy wel,y Sy Wpl,y
mm mm mm mm cm2/m kg/m kg/m² cm4/m cm3/m cm3/m cm3/m
GU 6N
600
309
6.0
6.0
89
41.9
70
9670
625
375
765
GU 7N
600
310
6.5
6.4
94
44.1
74
10450
675
400
825
GU 7S
600
311
7.2
6.9
98
46.3
77
11540
740
440
900
GU 7HWS
600
312
7.3
6.9
101
47.4
79
11620
745
445
910
GU 8N
600
312
7.5
7.1
103
48.5
81
12010
770
460
935
GU 8S
600
313
8.0
7.5
108
50.8
85
12800
820
490
995
GU 10N
600
316
9.0
6.8
118
55.8
93
15700
990
565
1160
GU 11N
600
318
10.0
7.4
128
60.2
100
17450
1095
630
1280
GU 12N
600
320
11.0
8.0
137
64.6
108
19220
1200
690
1400
GU 13N
600
418
9.0
7.4
127
59.9
100
26590
1270
755
1535
GU 14N
600
420
10.0
8.0
136
64.3
107
29410
1400
830
1685
GU 15N
600
422
11.0
8.6
146
68.7
115
32260
1530
910
1840
GU 16N
600
430
10.2
8.4
154
72.6
121
35950
1670
980
1988
GU 18N
600
430
11.2
9.0
163
76.9
128
38650
1800
1055
2134
GU 20N
600
430
12.2
9.5
172
81.1
135
41320
1920
1125
2280
GU 21N
600
450
11.1
9.0
174
81.9
137
46380
2060
1195
2422
GU 22N
600
450
12.1
9.5
183
86.1
144
49460
2200
1275
2580
GU 23N
600
450
13.1
10.0
192
90.4
151
52510
2335
1355
2735
GU 27N
600
452
14.2
9.7
207
97.4
162
60580
2680
1525
3087
GU 28N
600
454
15.2
10.1
216
101.8
170
64460
2840
1620
3269
GU 30N
600
456
16.2
10.5
226
106.2
177
68380
3000
1710
3450
GU 31N
600
452
18.5
10.6
233
109.9
183
69210
3065
1745
3525
GU 32N
600
452
19.5
11.0
242
114.1
190
72320
3200
1825
3687
GU 33N
600
452
20.5
11.4
251
118.4
197
75410
3340
1905
3845
GU 16-400
400
290
12.7
9.4
197
62.0
155
22580
1560
885
1815
GU 18-400
400
292
15.0
9.7
221
69.3
173
26090
1785
1015
2080
Section Dimensions Properties
b h tf tw A Gsp Gw Iy wel,y Sy Wpl,y
in in in in in2/ft lb/ft lb/ft2 in4/ft in3/ft in3/ft in3/ft
GU 6N - - - - - - - - - - -
GU 7N - - - - - - - - - - -
GU 7S - - - - - - - - - - -
GU 7HWS - - - - - - - - - - -
GU 8N - - - - - - - - - - -
GU 8S - - - - - - - - - - -
GU 10N - - - - - - - - - - -
GU 11N - - - - - - - - - - -
GU 12N - - - - - - - - - - -
GU 13N - - - - - - - - - - -
GU 14N - - - - - - - - - - -
GU 15N - - - - - - - - - - -
GU 16N - - - - - - - - - - -
GU 18N - - - - - - - - - - -
GU 20N - - - - - - - - - - -
GU 21N - - - - - - - - - - -
GU 22N - - - - - - - - - - -
GU 23N - - - - - - - - - - -
GU 27N - - - - - - - - - - -
GU 28N - - - - - - - - - - -
GU 30N - - - - - - - - - - -
GU 31N - - - - - - - - - - -
GU 32N - - - - - - - - - - -
GU 33N - - - - - - - - - - -
GU 16-400 - - - - - - - - - - -
GU 18-400 - - - - - - - - - - -
b Width of a single pile
h Height of the wall
tf Thickness of the flange
tw Thickness of the web
A Cross sectional steel area
Gsp Mass per single pile
Gw Mass per m of wall
Iy Moment of inertia about the main neutral axis y-y
Wel,y Elastic section modulus
Sy Static moment
Wpl,y Plastic section modulus