DEAS 134:2023  
ICS 77.140.75  
 
© EAC 2023                                                                                                                          Fourth Edition 2023   
 DRAFT EAST AFRICAN STANDARD  
Cold formed steel sections  — Specification  
EAST AFRICAN COMMUNITY  DEAS 134:2023  
ii © EAC 2023  – All rights reserved  
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Violators may be prosecuted . DEAS 134:2023  
© EAC 2023  – All rights reserved  iii 
 Foreword  
Development of the East African Standards has  been necessitated by the need for harmonizing requirements 
governing quality of products and services in the East African Community. It is envisaged that through 
harmonized standardization, trade barriers that are encountered when goods and services are e xchanged 
within the Community will be removed.  
The Community has established an East African Standards Committee  (EASC)  mandated to develop and 
issue East African Standards  (EAS) . The Committee is composed of representatives of the National 
Standards Bodi es in Partner States, together with the representatives from the public and private sector 
organizations  in the community .  
East African Standards are developed through  Technical Committees that are representative of key 
stakeholders including government, academia, consumer groups, private sector and other interested parties. 
Draft East African Standards are circulated to stakeholders through the National Standards Bodies in the 
Partner States. The comments received are discussed and incorporated before fin alization of standards, in 
accordance with the Principles and procedures for develop ment of East African Standards . 
East African Standards are subject to review, to keep pace with technological advances. Users of the East 
African Standards are therefore ex pected to ensure that they always have the latest versions of the standards 
they are implementing .  
The committee responsible  for this document is Technical Committee EASC /TC 35, Steel and steel products . 
This fourth  edition (DEAS 134:20 23) cancels and replaces the third edition (EAS  134:2019 ), which has been 
technically revised.  
 
 
 
 
 
 
 
 
 
  
 DRAFT EAST AFRICAN STANDARD  DEAS 134:2023  
 
© EAC 2023  – All rights reserved  1 
 Cold formed steel sections — Specification  
1 Scope   
This East Africa n Standard  specifies the requirements  and sectional properties of cold formed steel sections 
of thickness of 1 mm to 8 mm for use in structural  and general engineering applications. The sections  and 
their sectional properties  are listed in Annex A . 
2 Normative references  
The following document  is referred to in the text in such a way that some or all of its content con stitutes 
requirements of this document.  For dated references, only the edition cited applies. For undated references, 
the latest edition of the referenced document (including any amendments) applies.  
ISO 14347, Fatigue — Design procedure for welded hollow -section joints — Recommendations  
3 Terms and definitions   
No terms and definition are listed in this document.  
4 Symbols  
The following nomenclature shall be used. Units for dimensions are millimetres and those for section 
properties in centimetres.  
  t  -   section thickness         -  mm  
  p  -  distance from edge to  section centre of gravity  -  cm  
 A  -  sectional area         -  cm2 
 Z  - section  modulus of section l/p      -  cm3 
 I   -  second moment of area       -  cm4 
 r   - radius of gyration of section 
Al                 -  cm  
 x, y  - with r eference to x or y axis       
 w  - mass per linear metre        -  kg/m  
 L  - length           -  m   
2 © EAC 2023  – All rights reserved  
 5 Dimensions and tolerance  
5.1 Dimensions  
Dimensions of sections shall be in accordance with those listed in the relevant tables  in Annex A  of this 
standard.  
5.2 Tolerances  
Tolerance of characteristic properties sh all be as given in Table 1 . 
Table 1 — Tolerances in dimensions  
Characteristic  Tolerance  
Outside dimensiona ±1.5 mm or 2 %, whichever is less  
Deviation from straightness  0.17 % of total length  
Squareness of corners  90 ± 2 
Twist  Not to exceed 2 mm ± 0.5 mm per metre  
Concavity/convexity  lower than 5 mm  ± 10 % or 0.5 mm whichever is 
lower  
above 5 mm ± 0.5 mm  
Outside bend radii for right a ngle bends  If thickness is less than 6 mm,  
tolerance is between 1.5t to 2.5t  
If thickness is between 6 mm to 8  mm  
tolerance s between 2t to 3t  
Length  (6 metres)  
– Exact      
– Standard   
0 and + 10 mm  
0 mm and +  50 mm  
Thickness  ± 3 % for 1 mm  
above 1 mm  ± 7.5  % 
Mass per metre for 1  mm thick  ± 3.0 %  
Mass per metre for  above 1  mm thick  ± 6.0 %  
Deviation from out of roundness  
 For D/T ratio ≤ 100:  ± 2 % 
For D/T ratio > 100:  ± 2 % by agreement  
a This tolerance shall be measured at a distance of not less than 100 mm from the end of the 
section.  
  
5.3 Measur ement  
5.3.1 General  
All external dimensions including out -of-roundness sh all be measured at a distance from the end of the hollow 
section of not less than D for circular sections, B for square sections or H for rectangular sections, with a 
minimum of 100  mm.  
© EAC 2023  – All rights reserved  3 
 5.3.2 Outside dimension  
When inspecting circular hollow sections, the diameter D shall be measured directly. The limiting cross -
sectional positions for measuring B and H are shown in Figure 1, and shall be in accordance with Table 6.  
5.3.3 Thickness  
The thickness t shall be measured at a positon not less than 2t from the wel d. The limiting cross -sectional 
positions for measuring the thickness of square and rectangular sections are shown in Figure 1 . 
NOTE  Thickness is normally measured with in a distance of half of the outside diameter or half of the length of the 
longer side from the end of the section . 
 
a This dimension is a maximum when measuring B or H and a minimum when measuring t.  
Figure 1 — limiting cross -sectional positions for measuring the dimensions B, H and t for square or 
rectangular sect ions 
5.3.4 Out - of- roundness  
The out of roundness, O, of a circular hollow section shall be calculated as follows : 
%100*Dmin - Dmax 
DO
 
where 
D   is the nominal outside diameter of a circular hollow section;  
Dmax  is the maximum outside diameter; and  
Dmin   is the minimum outside diameter . 
5.3.5 Concavity and convexity  
The concavity (C 1) and convexity (C 2) of the sides of the square or rectangular hollow section  shall be 
measured as shown in F igure  2. 
The perc entage concavity C 1 shall be calculated as follows:  
%100X1
1BC
 …1a)  
or   
4 © EAC 2023  – All rights reserved  
 
%1001
1HXC …1b)  
The percentage convexity C 2 shall be calculated as follows:  
%1002
2BXC
 …2a)  
Or 
%1002
2HXC
 …2b)  
Where B and H are the len gths of the sides containing the concavity C 1 or convexity C 2. 
 
Figure 2 — Measurement of concavity/convexity of square or rectangular hollow sections  
 
5.3.6 Squareness of the sides of a square or rectangular hollow section shall be measured as difference 
between 9 0º and ɵ as shown in F igure 3 .  
© EAC 2023  – All rights reserved  5 
 .
  
Figure 3 — Squareness of sides of square or rectangular hollow sections  
5.3.7 External corner profile  
5.3.7.1  The external corner profile of a square or rectangul ar hollow section shall be measured according to 
5.3.7.2 or 5.3.7.3.  
5.3.7.2  The corner arc shall be measured with a radius gauge.  
5.3.7.3  The distance between the intersection of the flat side and the corner arc and the intersection of the 
projections of the flat sides to the corner (C 1) and (C 2) in F igure 4 shall be measured.  
 
Figure 4 — Outside corner profile of square or rectangular hollow sections  
5.3.8 Twist  
5.3.8.1  The twist ( V) in a square or rectangular hollow section shal l be determined in accordance with 
5.3.8.2 or 5.3.8.3.   
6 © EAC 2023  – All rights reserved  
 5.3.8.2  The hollow section shall be placed on a horizontal surface with one side at one end pressed against 
the surface. At the opposite end of the hollow section, the difference in height of the two l ower corners from a 
horizontal surface as shown in Figure 5, shall be measured.  
 
Figure 5 — Twist of square or rectangular hollow sections  
5.3.8.3  The twist shall be measured with a spirit level and micrometre gauge (screw). The r eference length 
of the spirit level shall be the distance between the intersection of the flat sides and the corner arcs (see 
Figure 6). The twist V is the difference between the values V 1 (See Fi gure 6) measured at each end of the 
section.  
 
Figure 6 — Measurement of twist  
5.3.9 Straightness  
The deviation from straightness (e) of total length of a hollow section shall be measured at the point of 
maximum departure of the hollow section from a straight line connecting its two ends as  shown in Figure 7.  
The percentage deviation from straightness shall be calculated as follows:   
© EAC 2023  – All rights reserved  7 
 
%100LeDeviation …3) 
 
Figure 7 — Measurement of deviation from straightness  
6 Compound sections  
Compound sections may be formed b y suitably connecting two or more simple sections. For example, an 'I' 
section can be made from two channels back -to-back, a tube from two inwardly lipped channels lip -to-lip, a 'T" 
from two angles, etc. Methods of joining sections are specified in ISO 143 47. 
Section properties of compound sections may be calculated using the  properties of simple sections.  
Compound sections shall be flush at  matching joints within 2.0 mm.  
7 Material requirement  
7.1 Grade designation  
The designation of the grades of material  shall be based on minimum permissible yield stress and shall be in 
accordance with Table 2. 
Table 2 — Grade designation  
Minimum yield stress,  
N/mm2 Designation of grade  
210 210 
250 250 
360 360 
  
8 © EAC 2023  – All rights reserved  
 7.2 Chemical composition  
The results of ladle chemical an alysis of steel from which a hollow section is manufactured shall comply with 
appropriate limits of Table 3. For grade 360, it shall be permissible to add suitable grain -refining elements to 
achieve the minimum specified tensile stress, but the total conte nt of these elements shall not exceed 0.15 %.  
Table 3 — Ladle chemical analysis limits  
Grade of steel  Maximum content,  
% 
Carbon  Phosphorous  Sulphur  Mn 
210 0.20 0.05 0.05 - 
250 0.25 0.06 0.06 - 
360 - - 0.04 - 
 
7.3 Mechanical properties  
The mechanical properties obtained from test samples taken from the hollow section in accordance with 8, 
shall comply with the requirements in Table 4. If other grades of steel are used, their mechanical properties 
shall be agreed on between the purchaser and the manufac turer.  
Table 4 — Tensile test requirements  
Grade of steel  Minimum yield 
stress,  
N/mm2 Ultimate tensile 
strength,  
N/mm2 Minimum elongation as a 
proportion of gauge length,  
% 
210 210 340 24 
250 250 420 22 
360 360 480 20 
 
8 Sampling  
8.1 General  
At least o ne sample shall be selected from the following batch sizes:  
a) a 20-tonne or less batch of sections having outside diameter of less than 90 mm; and  
b) a batch of less than 40  tonnes for all other sections.  
If the test fails, two more samples shall be drawn from  the batch and tested. If one or both test specimens re -
tested fail, the whole batch shall be deemed not to have complied with the specification unless all sections in 
the batch are tested individually .  
© EAC 2023  – All rights reserved  9 
 8.2 Test pieces  
The test piece shall consist of a str ip taken from the section. The strip shall be taken longitudinally at any point 
of the section except for welded sections when it shall not be taken from the weld zone. The strip shall comply 
with the following conditions:  
a) sides of the test piece shall be  parallel within a maximum variation, along parallel length, of ± 0.2 % of 
nominal width;  
b) the tripped ends and parallel lengths of the test piece shall be coaxial;  
c) 
A L 5.65o  and shall be within ± 5 % of the nominal value:  
where  
Lo is the gaug e length;  and 
A is the sectional area.  
d) minimum parallel length Lp = Lo + 2D for circular sections, and Lp = Lo + 2 nominal width for square or  
rectangular sections:  
where,  
Lo is the gauge len gth.  
e) the width of the test piece shall not be less than 6 mm, u nless the product width precludes use of 
wider pieces; and  
f) the test piece shall not be flattened and machined between the gauge marks except for the purposes 
of gripping the test piece in a test machine.  
9 Marking  
Each piece shall be indelibly and legibly marked /printed at least once in every 6 meters length with the 
following : 
a) manufacturer’s na me and/ or registered trademark;  
b) outside dimension (in mm) ; 
c) nominal thickness (in mm) ; 
d) The steel grade ; and  
e) Country of origin  
  
10 © EAC 2023  – All rights reserved  
 Annex  A 
(normative)  
 
Section properti es  
 
 
Figure A.1 — Square hollow sections  
Table A.1 — Dimensions and properties for cold formed  square hollow sections  
Size,  
 
B x D  
 
mm Thick
ness,  
 
t 
 
mm Area,  
 
A 
 
cm2 Mass,  
 
w 
 
kg/m  Second 
moment of 
area,  
Ix = Iy  
 
cm4 Radius of 
gyration,  
Rx = R y 
 
cm Section 
Elastic 
modulus,  
Zx = Z y  
 
cm3 
10 x 10  1.2 0.39 0.30  0.047129   0.349722  0.09 
10 x 10  1.5 0.45 0.35  0.050548   0.334382  0.10 
12 x 12  1.0 0.41 0.33  0.080793   0.441622  0.13 
12 x 12  1.2 0.48 0.38  0.089707   0.431708  0.15 
12 x 12  1.5 0.57 0.45  0.099303   0.416629  0.17 
14 x 14  1.0 0.49 0.388  0.135  0.523   
14 x 14  1.2 0.58 0.45  0.152281   0.513581  0.22 
14 x 14  1.5 0.69 0.54  0.172098   0.498665  0.25 
16 x 16  1.0 0.57 0.45  0.210312   0.605170  0.26 
16 x 16  1.2 0.67 0.53  0.238689   0.595389  0.30 
16 x 16  1.5 0.81 0.64  0.273736   0.580584  0.34 
16 x 16  2.0 1.02 0.80  0.313845   0.555506  0.39 
18 x 18  1.2 0.77 0.60  0.352772   0.677157  0.39 
18 x 18  1.5 0.93 0.73  0.409015   0.662433  0.45 
18 x 18  2.0 1.18 0.92  0.478445   0.637 559  0.53 
20 x 20  1.0 0.73 0.58  0.433771   0.768609  0.43 
20 x 20  1.2 0.87 0.68  0.498369   0.758898  0.50 
20 x 20  1.5 1.05 0.83  0.582737   0.744236  0.58 
20 x 20  2.0 1.34 1.05  0.692186   0.719514  0.69 
25 x 25  1.0 0.93 0.73  0.884200   0.972840  0.71 
25 x 25  1.2 1.11 0.87  1.025440   0.963182  0.82  
© EAC 2023  – All rights reserved  11 
 25 x 25  1.5 1.35 1.06  1.216722   0.948623  0.97 
25 x 25  2.0 1.74 1.36  1.483530   0.924152  1.19 
25 x 25  2.5 2.09 1.64  1.689908  0.899393  1.35 
25 x 25  3.0 2.41 1.89  1.840962   0.874306  1.47 
30 x 30 1.0 1.13 0.89  1.571411   1.177033  1.05 
30 x 30  1.2 1.35 1.06  1.833477   1.167408  1.22 
30 x 30  1.5 1.65 1.30  2.195967   1.152914  1.46 
30 x 30  2.0 2.14 1.68  2.722004   1.128595  1.81 
30 x 30  2.5 2.59 2.03  3.155984   1.104055  2.10 
30 x 30  3.0 3.01 2.36  3.504194   1.079271  2.34 
40 x 40  1.0 1.53 1.20  3.856181   1.585365  1.93 
40 x 40  1.2 1.83 1.43  4.532452   1.575779  2.27 
40 x 40  1.5 2.25 1.77  5.490241   1.561361  2.75 
40 x 40  2.0 2.94 2.31  6.940341   1.537218  3.47 
40 x 40  2.5 3.59 2.82  8.215307   1.512926  4.11 
40 x 40  3.0 4.21 3.30  9.323785   1.488472  4.66 
40 x 40  4.0 5.35 4.20  11.074982   1.439028  5.54 
50 x 50  1.2 2.31 1.81  9.075294   1.984099  3.63 
50 x 50  1.5 2.85 2.24  11.065556   1.969724  4.43 
50 x 50  2.0 3.74 2.93  14.147198   1.945680  5.66 
50 x 50  2.5 4.59 3.60  16.944192   1.921523  6.78 
50 x 50  3.0 5.41 4.25  19.467546   1.897246  7.79 
50 x 50  4.0 6.95 5.45  23.736481   1.848303  9.49 
60 x 60  1.5 3.45 2.71  19.521915   2.378047  6.51 
60 x 60  2.0 4.54 3.56  25.142576   2.354066  8.38 
60 x 60  2.5 5.59 4.39  30.342640   2.329994  10.11  
60 x 60  3.0 6.61 5.19  35.135477   2.305827  11.71  
60 x 60  4.0 8.55 6.71  43.552060   2.257190  14.52  
75 x 75  2.5 7.09 5.56  61.383242   2.942582  16.37  
75 x 75  3.0 8.41 6.60  71.620192   2.918520  19.10  
75 x 75  4.0 10.95  8.59  90.189328   2.870166  24.05  
75 x 75  5.0 13.36  10.48   106.328271   2.821487  28.35  
75 x 75  6.0 15.63  12.27   120.165935   2.772455  32.04  
100 x 100  3.0 11.41  8.96  177.048901   3.939448  35.41  
100 x 100  4.0 14.95  11.73   226.355174   3.891359  45.27  
100 x 100  5.0 18.36  14.41   271.107073   3.843045  54.22  
100 x 100  6.0 21.63  16.98   311.480730   3.794492  62.30  
100 x 100  8.0 27.79  21.82   379.783697   3.696607  75.96  
120 x 120  3.0 13.81  10.84   312.350633   4.756094  52.06  
120 x 120  4.0 18.15  14.25   402.281212   4.708131  67.05  
120 x 120  5.0 22.36  17.55   485.482240   4.659988  80.91  
120 x 120  6.0 26.43  20.75   562.167626   4.611654  93.69  
125 x 125  3.0 14.41  11.31   354.503672   4.960248  56.72  
125 x 125  4.0 18.95  14.87   457.234021   4.912310  73.16  
125 x 125  5.0 23.36  18.33   552.624938   4.864199  88.42   
12 © EAC 2023  – All rights reserved  
 125 x 125  6.0 27.63  21.69   640.899775   4.815908  102.54  
125 x 125  8.0 35.79  28.10   775.342601   4.654253  124.05  
150 x 150  4.0 22.95  18.01   807.825868   5.933145  107.71  
150 x 150  5.0 28.36  22.26   982.131865   5.885164  130.95  
150 x 150  6.0 33.63  26.40  1,145.923070   5.837039  152.79  
150 x 150  8.0 43.24  33.95  1,411.866334   5.714180  188.25  
175 x 175  4.0 26.95  21.15  1,303.130714   6.953916  148.93  
175 x 175  5.0 33.36  26.18  1,590.877854   6.906026  181.81  
175 x 175  6.0 39.63  31.11  1,864.050615   6.858015  213.03  
175 x 175  8.0 51.79  40.66  2,325.526067   6.700799  265.77  
200 x 200  4.0 30.95  24.29  1,968.148561   7.974648  196.81  
200 x 200  5.0 38.36  30.11  2,410.112906   7.926824  241.01  
200 x 200  6.0 45.63  35.82  2,832.782410   7.878896  283.28  
200 x 200  8.0 59.24  46.51  3,566.321801   7.758946  356.63  
250 x 250  4.0 38.95  30.57  3,907.323254   10.016043  312.59  
250 x 250  5.0 48.36  37.96  4,805.050198   9.968310  384.40  
250 x 250  6.0 57.63  45.24  5,672.058750   9.920496  453.76  
250 x 250  8.0 75.24  59.06  7,229.321267   9.802218  578.35  
 
 
 
 
 
 
 
 
 
 
 
 
 
  
© EAC 2023  – All rights reserved  13 
 
 
 
Figure A.2 ― Rectangular section  
 
Table A.2  – Dimensions and properties for cold formed  rectangular hollow sections  
Size,  
 
B x D  
 
mm Thickness,  
 
t 
 
mm Area,  
 
A 
 
cm2 Mass,  
 
w 
 
kg/m  Second Moment of 
area Radius of 
gyration  Elastic section 
modulus  
Major axis 
x-x 
Ix 
cm4 Minor 
axis y -y 
Iy 
cm4 Major 
axis x -x 
Rx 
cm Minor 
axis y -y 
Ry 
cm Major 
axis x -x 
Zx 
cm3 Minor 
axis y -y 
Zy 
cm3 
30 x 10  1.0  0.73   0.57  0.730  0.125  1.000  0.413  0.487  0.249  
30 x 10  1.2  0.87   0.68  0.838  0.141  0.984  0.403  0.558  0.281  
30 x 10  1.5  1.05   0.83  0.976  0.160  0.963  0.390  0.651  0.320  
30 x 20  1.0  0.93   0.73  1.151  0.614  1.110  0.811  0.767  0.614  
30 x 20  1.2  1.11   0.87  1.336  0.711  1.099  0.802  0.890  0.711  
30 x 20  1.5  1.35   1.06  1.586  0.840  1.083  0.788  1.057  0.840  
30 x 20  2.0  1.74   1.36  1.937  1.018  1.056  0.765  1.291  1.018  
35 x 15  1.0  0.93   0.73   1.39   0.37   1.22   0.63  0.79 0.49 
35 x 15  1.2  1.11   0.87  1.611  0.421  1.207  0.617  0.921  0.562  
35 x 15  1.5  1.35   1.06  1.911  0.494  1.189  0.604  1.092  0.658  
35 x 15  2.0  1.74   1.36  2.327  0.589  1.157  0.582  1.330  0.785  
35 x 15  3.0  2.41   1.89  2.867  0.699  1.091  0.539  1.639  0.932  
35 x 25  1.0 1.13 0.89 1.967  1.172  1.317  1.017  1.124  0.938  
35 x 25  1.2  1.35   1.06  2.297  1.366  1.307  1.008  1.312  1.092  
35 x 25  1.5  1.65   1.30  2.753  1.631  1.291  0.994  1.573  1.305  
35 x 25  2.0  2.14   1.68  3.417  2.014  1.265  0.971  1.953  1.611  
35 x 25  3.0  3.01   2.36  4.408  2.571  1.210  0.925  2.519  2.057  
35 x 30  1.0  1.23   0.97   2.26   1.78   1.35   1.20  1.29 1.19 
35 x 30  1.2  1.47   1.15  2.640 2.082  1.342  1.192  1.508  1.388  
35 x 30  1.5  1.80   1.41  3.174  2.501  1.327  1.178  1.814  1.667  
35 x 30  2.0  2.34   1.83  3.962  3.115  1.302  1.154  2.264  2.076  
35 x 30  3.0  3.31   2.60  5.178  4.053  1.251  1.107  2.959  2.702  
40 x 10  1.0  0.93   0.73  1.574  0.165  1.298  0.421  0.787  0.331  
40 x 10  1.2  1.11   0.87  1.822  0.187  1.284  0.412  0.911  0.375  
40 x 10  1.5  1.35   1.06  2.153  0.215  1.262  0.399  1.077  0.430  
40 x 10  2.0  1.74   1.36  2.604  0.247  1.224  0.377  1.302  0.494   
14 © EAC 2023  – All rights reserved  
 40 x 20  1.0  1.13   0.89  2.335  0.795 1.435  0.837  1.167  0.795  
40 x 20  1.2  1.35   1.06  2.725  0.923  1.423  0.828  1.363  0.923  
40 x 20  1.5  1.65   1.30  3.266  1.097  1.406  0.815  1.633  1.097  
40 x 20  2.0  2.14   1.68  4.050  1.343  1.377  0.793  2.025  1.343  
40 x 20  3.0  3.01   2.36  5.208  1.685  1.316 0.748  2.604  1.685  
40 x 25  1.0  1.23   0.97  2.715  1.316  1.483  1.033  1.358  1.053  
40 x 25  1.2  1.47   1.15  3.177  1.536  1.472  1.024  1.589  1.229  
40 x 25  1.5  1.80   1.41  3.822  1.839  1.456  1.010  1.911  1.471  
40 x 25  2.0  2.34   1.83  4.772  2.279  1.429  0.988  2.386  1.823  
40 x 25  3.0  3.31   2.60  6.237  2.937  1.373  0.942  3.118  2.349  
40 x 35  1.2  1.71   1.34  4.081  3.325  1.547  1.396  2.040  1.900  
40 x 35  1.5  2.10   1.65  4.934  4.017  1.532  1.382  2.467  2.295  
40 x 35  2.0  2.74   2.15  6.218  5.053  1.507  1.359 3.109  2.887  
40 x 35  3.0  3.91   3.07  8.295  6.719  1.457  1.311  4.147  3.839  
45 x 15  1.2  1.35   1.06  3.089  0.536  1.515  0.631  1.373  0.715  
45 x 15  1.5  1.65   1.30  3.696  0.631  1.496  0.618  1.643  0.841  
45 x 30  1.2  1.71   1.34  4.816  2.580  1.681  1.230  2.141 1.720  
45 x 30  1.5  2.10   1.65  5.826  3.111  1.665  1.216  2.589  2.074  
45 x 30  2.0  2.74   2.15  7.345  3.900  1.638  1.194  3.264  2.600  
45 x 30  3.0  3.91   3.07  9.804  5.151  1.584  1.148  4.358  3.434  
50 x 10  1.0  1.13   0.89  2.885  0.206  1.595  0.426  1.154  0.412  
50 x 10  1.2  1.35   1.06  3.359  0.234  1.580  0.417  1.343  0.468  
50 x 10  1.5  1.65   1.30  4.007  0.270  1.557  0.404  1.603  0.539  
50 x 10  2.0  2.14   1.68  4.926  0.312  1.518  0.382  1.970  0.624  
50 x 10  3.0  3.01   2.36  6.196  0.350  1.435  0.341  2.478  0.699 
50 x 15  1.2  1.47   1.15  4.073  0.593  1.667  0.636  1.629  0.791  
50 x 15  1.5  1.80   1.41  4.889  0.699  1.647  0.623  1.956  0.933  
50 x 15  2.0  2.34   1.83  6.079  0.844  1.613  0.601  2.431  1.126  
50 x 15  3.0  3.31   2.60  7.855  1.029  1.541  0.558  3.142  1.373  
50 x 25  1.0  1.43   1.13  4.686  1.605  1.808  1.058  1.875  1.284  
50 x 25  1.2  1.71   1.34  5.502  1.876  1.796  1.049  2.201  1.501  
50 x 25  2.0  2.74   2.15  8.384  2.809  1.750  1.013  3.354  2.247  
50 x 25  3.0  3.91   3.07  11.173  3.667  1.691  0.969  4.469  2.934  
55 x 10 2.0  2.34   1.83  6.475  0.345  1.664  0.384  2.354  0.690  
55 x 10  3.0  3.31   2.60  8.264  0.389  1.580  0.343  3.005  0.777  
55 x 20  1.2  1.71   1.34  6.109  1.242  1.893  0.853  2.221  1.242  
55 x 20  1.5  2.10   1.65  7.381  1.483  1.874  0.840  2.684  1.483  
55 x 20  2.0  2.74   2.15  9.285  1.831  1.842  0.818  3.376  1.831  
55 x 20  3.0  3.91   3.07  12.324  2.342  1.776  0.774  4.482  2.342  
55 x 25  1.2  1.83   1.43  6.977  2.046  1.955  1.059  2.537  1.637  
55 x 25  1.5  2.25   1.77  8.454  2.461  1.938  1.045  3.074  1.969  
55 x 25  2.0  2.94   2.31  10.690  3.075  1.908  1.023  3.887  2.460  
55 x 25  3.0  4.21   3.30  14.354  4.032  1.847  0.979  5.220  3.226  
55 x 35  1.2  2.07   1.62  8.714  4.354  2.054  1.452  3.169  2.488  
55 x 35  1.5  2.55   2.00  10.602  5.280  2.038  1.438  3.855  3.017   
© EAC 2023  – All rights reserved  15 
 55 x 35  2.0  3.34   2.62  13.501  6.688  2.011  1.416  4.909  3.822  
55 x 35  3.0  4.81   3.77  18.415  9.029  1.957  1.370  6.696  5.160  
55 x 45  1.2  2.31   1.81  10.451  7.695  2.129  1.827  3.800  3.420  
55 x 45  1.5  2.85   2.24  12.749  9.375  2.114  1.813  4.636  4.167  
55 x 45  2.0  3.74   2.93  16.311  11.971  2.089  1.790  5.931  5.320  
55 x 45  3.0  5.41   4.25  22.475  16.431  2.039  1.743  8.173  7.303  
60 x 15  1.2  1.71   1.34  6.606  0.708  1.968  0.644  2.202  0.944  
60 x 15  1.5  2.10   1.65  7.969  0.837  1.947  0.631  2.656  1.116  
60 x 15  2.0  2.74   2.15  9.999  1.014  1.911  0.609  3.333  1.353  
60 x 15  3.0  3.91   3.07  13.184  1.250  1.837  0.566  4.395  1.667  
60 x 20  1.2  1.83   1.43  7.643  1.348  2.046  0.859  2.548  1.348  
60 x 20  1.5  2.25   1.77  9.253  1.612  2.027  0.846  3.084  1.612  
60 x 20  2.0  2.94   2.31  11.681  1.994  1.994  0.824  3.894  1.994  
60 x 20  3.0  4.21   3.30  15.623  2.561  1.927  0.780  5.208  2.561  
60 x 30  1.2  2.07   1.62  9.718  3.327  2.169  1.269  3.239  2.218  
60 x 30  1.5  2.55   2.00  11.820  4.025  2.152  1.256  3.940  2.683  
60 x 30  2.0  3.34   2.62  15.047  5.078  2.123  1.234  5.016  3.385  
60 x 30  3.0  4.81   3.77  20.501  6.798  2.065  1.189  6.834  4.532  
60 x 40  1.0  1.93   1.52  9.986  5.378  2.272  1.667  3.329  2.689  
60 x 40  1.2  2.31   1.81  11.792  6.340  2.262  1.658  3.931  3.170  
60 x 40  1.5  2.85   2.24  14.387  7.715  2.246  1.645  4.796  3.857  
60 x 40  2.0  3.74   2.93  18.412  9.831  2.220  1.622  6.137  4.916  
60 x 40  3.0  5.41   4.25  25.379  13.440  2.166  1.576  8.460  6.720  
60 x 40  4.0  6.95   5.45  30.987  16.280  2.112  1.531  10.329  8.140  
65 x 25  1.2  2.07   1.62  10.627  2.386  2.268  1.075  3.270  1.909  
65 x 25  1.5  2.55   2.00  12.919  2.876  2.250  1.062  3.975  2.301  
65 x 25  2.0  3.34   2.62  16.430  3.605  2.219  1.039  5.055  2.884  
65 x 25  3.0  4.81   3.77  22.334  4.763  2.155  0.995  6.872  3.810  
65 x 25  4.0  6.15   4.83  26.832  5.567  2.089  0.952  8.256  4.454  
65 x 30  1.2  2.19   1.72  11.848  3.576  2.328  1.279  3.646  2.384  
65 x 30  1.5  2.70   2.12  14.431  4.330  2.311  1.266  4.440  2.887  
65 x 30  2.0  3.54   2.78  18.415  5.471  2.282  1.244  5.666  3.647  
65 x 30  3.0  5.11   4.01  25.219  7.347  2.222  1.199  7.760  4.898  
65 x 30  4.0  6.55   5.14  30.558  8.737  2.160  1.155  9.403  5.825  
65 x 35  1.2  2.31   1.81  13.069  5.040  2.381  1.479  4.021  2.880  
65 x 35  1.5  2.85   2.24  15.944  6.122  2.364  1.465  4.906  3.498  
65 x 35  2.0  3.74   2.93  20.400  7.779  2.336  1.443  6.277  4.445  
65 x 35  3.0  5.41   4.25  28.105  10.570  2.280  1.398  8.648  6.040  
65 x 35  4.0  6.95   5.45  34.285  12.725  2.221  1.353  10.549  7.271  
70 x 20  1.2  2.07   1.62  11.411  1.560  2.351  0.869  3.260  1.560  
70 x 20  1.5  2.55   2.00  13.861  1.869  2.330  0.856  3.960  1.869  
70 x 20  2.0  3.34   2.62  17.600  2.319  2.297  0.834  5.029  2.319  
70 x 20  3.0  4.81   3.77  23.838  2.999  2.227  0.790  6.811  2.999  
70 x 20  4.0  6.15   4.83  28.508  3.428  2.153  0.747  8.145  3.428  
70 x 30  1.2  2.31   1.81  14.251  3.825  2.486  1.288  4.072  2.550   
16 © EAC 2023  – All rights reserved  
 70 x 30  1.5  2.85   2.24  17.380  4.635  2.469  1.275  4.966  3.090  
70 x 30  2.0  3.74   2.93  22.225  5.863  2.439  1.253  6.350  3.909  
70 x 30  3.0  5.41   4.25  30.576  7.896  2.378  1.208  8.736  5.264  
70 x 30  4.0  6.95   5.45  37.231  9.418  2.315  1.164  10.637  6.279  
70 x 50  1.2  2.79   2.19  19.932  11.934  2.675  2.070  5.695  4.773  
70 x 50  1.5  3.45   2.71  24.420  14.595  2.660  2.056  6.977  5.838  
70 x 50  2.0  4.54   3.56  31.476  18.758  2.634  2.033  8.993  7.503  
70 x 5 0 3.0  6.61   5.19  44.052  26.104  2.582  1.987  12.586  10.441  
70 x 50  4.0  8.55   6.71  54.676  32.222  2.529  1.942  15.622  12.889  
75 x 25  1.2  2.31   1.81  15.309  2.726  2.577  1.087  4.082  2.181  
75 x 25  1.5  2.85   2.24  18.660  3.290  2.558  1.074  4.976  2.632  
75 x 25  2.0  3.74   2.93  23.837  4.135  2.526  1.052  6.357  3.308  
75 x 25  3.0  5.41   4.25  32.718  5.493  2.460  1.008  8.725  4.395  
75 x 25  4.0  6.95   5.45  39.726  6.460  2.391  0.964  10.594  5.168  
75 x 50  2.0  4.74   3.72  37.163  19.911  2.801  2.050  9.910  7.964  
75 x 50  2.5  5.84   4.58  44.951  24.001  2.775  2.027  11.987  9.601  
75 x 50  3.0  6.91   5.42  52.169  27.763  2.748  2.005  13.912  11.105  
75 x 50  4.0  8.95   7.02  64.958  34.343  2.694  1.959  17.322  13.737  
75 x 50  5.0 10.86   8.52  75.651  39.747  2.640  1.913  20.174 15.899  
80 x 40  1.2  2.79   2.19  23.663  8.147  2.915  1.710  5.916  4.073  
80 x 40  1.5  3.45   2.71  28.989  9.939  2.898  1.697  7.247  4.970  
80 x 40  2.0  4.54   3.56  37.358  12.722  2.869  1.675  9.339  6.361  
80 x 40  3.0  6.61   5.19  52.252  17.556  2.812  1.630 13.063  8.778  
80 x 40  4.0  8.55   6.71  64.795  21.486  2.753  1.585  16.199  10.743  
80 x 60  1.5  4.05   3.18  38.233  24.656  3.072  2.467  9.558  8.219  
80 x 60  2.0  5.34   4.19  49.528  31.873  3.046  2.444  12.382  10.624  
80 x 60  3.0  7.81   6.13  70.048  44.891  2.995 2.398  17.512  14.964  
80 x 60  4.0 10.15   7.97  87.920  56.117  2.943  2.352  21.980  18.706  
90 x 30  1.5  3.45   2.71  32.929  5.854  3.088  1.302  7.317  3.903  
90 x 30  2.0  4.54   3.56  42.388  7.434  3.057  1.280  9.420  4.956  
90 x 30  3.0  6.61   5.19  59.136  10.092 2.991  1.236  13.141  6.728  
90 x 30  4.0  8.55   6.71  73.107  12.144  2.924  1.192  16.246  8.096  
100 x 20  1.5  3.45   2.71  35.940  2.641  3.227  0.875  7.188  2.641  
100 x 20  2.0  4.54   3.56  46.167  3.295  3.190  0.852  9.233  3.295  
100 x 20  3.0  6.61   5.19  64.105 4.313  3.115  0.808  12.821  4.313  
100 x 20  4.0  8.55   6.71  78.814  4.996  3.036  0.764  15.763  4.996  
100 x 40  2.0  5.34   4.19  65.377  15.612  3.500  1.710  13.075  7.806  
100 x 40  3.0  7.81   6.13  92.341  21.672  3.439  1.666  18.468  10.836  
100 x 40  4.0 10.15  7.97 115.699  26.691  3.377  1.622  23.140  13.345  
100 x 50  2.5  7.09   5.56  91.205  31.059  3.587  2.093  18.241  12.424  
100 x 50  3.0  8.41   6.60  106.459  36.058  3.558  2.071  21.292  14.423  
100 x 50  4.0 10.95   8.59  134.142  44.950  3.500  2.026  26.828  17.980  
100 x 50  5.0 13.36  10.48  158.190  52.455  3.441  1.982  31.638  20.982  
100 x 50  6.0 15.63  12.27  178.761  58.675  3.382  1.937  35.752  23.470  
120 x 60  3.0 10.21   8.01  189.123  64.403  4.304  2.512  31.520  21.468   
© EAC 2023  – All rights reserved  17 
 120 x 60  4.0 13.35  10.48  240.745  81.248  4.247  2.467 40.124  27.083  
120 x 80  2.0  7.74   6.07  159.772  86.040  4.544  3.335  26.629  21.510  
120 x 80  3.0 11.41   8.96  230.199  123.436  4.492  3.289  38.366  30.859  
120 x 80  4.0 14.95  11.73  294.591  157.296  4.439  3.244  49.098  39.324  
125 x 75  3.0 11.41  8.96  242.851 110.523  4.614  3.113  38.856  29.473  
125 x 75  4.0 14.95  11.73  310.771  140.653  4.560  3.067  49.723  37.507  
125 x 75  5.0 18.36  14.41  372.521  167.682  4.505  3.022  59.603  44.715  
125 x 75  6.0 21.63  16.98  428.305  191.761  4.450  2.977  68.529  51.136  
140 x 60 2.0  7.74   6.07  193.130  52.065  4.996  2.594  27.590  17.355  
140 x 60  3.0 11.41   8.96  278.085  74.159  4.937  2.550  39.726  24.720  
140 x 60  4.0 14.95  11.73  355.602  93.813  4.877  2.505  50.800  31.271  
150 x 50  3.0 11.41   8.96  298.555  52.648  5.116  2.148  39.807  21.059  
150 x 50  4.0 14.95  11.73  381.399  66.163  5.051  2.104  50.853  26.465  
150 x 50  5.0 18.36  14.41  456.299  77.872  4.986  2.060  60.840  31.149  
150 x 50  6.0 21.63  16.98  523.483  87.895  4.919  2.016  69.798  35.158  
150 x 75  3.0 12.91  10.13  379.600  129.974  5.423  3.173  50.613  34.660  
150 x 75  4.0 16.95  13.30  488.006  165.884  5.366  3.129  65.067  44.236  
150 x 75  5.0 20.86  16.37  587.757  198.360  5.309  3.084  78.368  52.896  
150 x 75  6.0 24.63  19.34  679.093  227.558  5.251  3.039  90.546  60.682  
150 x 100  3.0 14.41  11.31  460.645  247.639  5.654  4.146  61.419  49.528  
150 x 100  4.0 18.95  14.87  594.613  318.569  5.602  4.100  79.282  63.714  
150 x 100  5.0 23.36  18.33  719.215  384.024  5.549  4.055  95.895  76.805  
150 x 100  6.0 27.63  21.69  800.121  429.761  5.381  3.944 106.683  85.952  
150 x 100  8.0 35.79  28.10   1,067.14   559.76   5.46   3.95  142.29  111.95  
200 x 50  5.0 23.36  18.33  1067.138  559.765  5.460  3.955  142.285  111.953  
200 x 50  6.0 27.63  21.69  983.863  103.289  6.490  2.103  98.386  41.315  
200 x 50  8.0 35.24   27.66  1138.622  117.115  6.419  2.059  113.862  46.846  
200 x 100  4.0 22.95  18.01  1199.722  410.782  7.230  4.231  119.972  82.156  
200 x 100  5.0 28.36  22.26  1459.280  496.940  7.174  4.186  145.928  99.388  
200 x 100  6.0 33.63  26.40  1703.342  576.921  7.116  4.142  170.334  115.384  
200 x 100  8.0 43.24  33.94   2,090.91   705.37   6.95   4.04  209.09  141.07  
200 x 150  4.0 26.95  21.15  1583.935  1021.039  7.667  6.155  158.394  136.139  
200 x 150  5.0 33.36  26.18  1934.696  1245.049  7.616  6.109  193.470  166.006  
200 x 150  6.0 39.63  31.11  2268.062  1457.143  7.565  6.063  226.806  194.286  
200 x 150  8.0 51.24  40.22   2,828.62   1,815.57   7.43   5.95  282.86  242.08  
300 x 100  4.0 30.95  24.29  3289.494  591.748  10.310  4.373  219.300  118.350  
300 x 100  5.0 38.36  30.11  4065.277  722.774  10.295  4.341  271.018  144.555  
300 x 100  6.0 45.63  35.82  4776.872  842.361  10.231  4.296  318.458  168.472  
300 x 100  8.0 59.24  46.50   5,978.04   1,044.78   10.05   4.20  398.54  208.96  
300 x 200  4.0 38.95  30.57  5072.923  2736.575  11.413  8.382  338.1 95 273.658  
300 x 200  5.0 48.36  37.96  6241.110  3360.946  11.361  8.337  416.074  336.095  
300 x 200  6.0 57.63  45.24  7370.312  3962.222  11.309  8.291  491.354  396.222  
300 x 200  8.0 75.24  59.06  9389.451  5041.735  11.171  8.186  625.963  504.174  
350 x 150  4.0 38.95  30.57  6133.375  1660.679  12.549  6.530  350.479  221.424  
350 x 150  5.0 48.36  37.96  7544.127  2033.799  12.490  6.485  431.093  271.173   
18 © EAC 2023  – All rights reserved  
 350 x 150  6.0 57.63  45.24  8906.982  2390.803  12.432  6.441  508.970  318.774  
350 x 150  8.0 75.24  59.06  11322.126  3026.6 93 12.267  6.342  646.979  403.559  
400 x 100  6.0 57.63  45.24  10132.070  1107.801  13.259  4.384  506.603  221.560  
400 x 100  8.0 75.24  59.06  12827.344  1384.195  13.057  4.289  641.367  276.839  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
© EAC 2023  – All rights reserved  19 
 
 
Figure A.3 ― Plain channel section  
 
Table A.3 — Dimensions and properties for cold formed  plain channel sections  
 
Size 
B x D  
 Thickness, t  Area, A  Mass, 
w Centroid  
 Second Moment of 
area  Elastic section 
modulus  
 Radius of gyration  
 
mm mm cm2 Kg/m  Y-axis 
Py 
 cm Axis x -x 
Ix 
cm4 Axis y -y 
Iy 
cm4 Axis x-x 
Zx 
cm3 Axis y -y 
Zy 
cm3 Axis x -x 
Rx 
cm Axis y -y 
Ry 
cm 
40 x 25  1.5 1.305  1.024  0.750  1.430  3.414  1.907  0.171  1.047  1.617  
40 x 25  2.0 1.720  1.350  0.769  1.904  4.391  2.477  0.220  1.052  1.598  
40 x 40  1.5 1.755  1.378  1.391  5.768  5.082  4.146  0.254  1.813  1.702 
40 x 40  2.0 2.320  1.821  1.410  7.681  6.559  5.446  0.328  1.820  1.681  
50 x 25  3.0 2.820  2.214  0.735  2.875  10.425  3.912  0.417  1.010  1.923  
60 x 40  3.0 4.020  3.156  1.254  11.674  23.449  9.306  0.782  1.704  2.415  
60x 40  4.0 5.280  4.145  1.291  15.535  29.818  12.034 0.994  1.715  2.376  
75 x 40  3.0 4.470  3.509  1.143  11.779  39.335  10.303  1.049  1.623  2.966  
75 x 40  4.0 5.880  4.616  1.180  15.679  50.396  13.292  1.344  1.633  2.928  
75 x 40  4.5 6.570  5.157  1.198  17.626  55.574  14.717  1.482  1.638  2.908  
100 x 50  3.0 5.820  4.569  1.361  23.090  91.355  16.961  1.827  1.992  3.962  
100 x 50  4.0 7.680  6.029  1.398  30.743  118.170  21.992  2.363  2.001  3.923  
100 x 50  4.5 8.595  6.747  1.416  34.563  130.938  24.407  2.619  2.005  3.903  
100 x 50  6.0 11.280  8.855  1.470  46.007  166.794  31.293  3.336  2.020  3.845  
120 x 50  3.0 6.420  5.040  1.248  23.256  139.729  18.633  2.329  1.903  4.665  
120 x 50  4.0 8.480  6.657  1.285  30.969  181.444  24.102  3.024  1.911  4.626  
120 x 50  6.0 12.480  9.797  1.358  46.365  258.106  34.150  4.302  1.927  4.548  
120 x 65  4.5 10.845  8.513  1.857  75.799  246.486  40.824  4.108  2.644  4.767  
125 x 65  4.0 9.880  7.756  1.805  67.526  243.789  37.405  3.901  2.614  4.967  
125 x 65  6.0 14.580  11.445  1.878  101.071  348.518  53.813  5.576  2.633  4.889  
150 x 50  6.0 14.280  11.210  1.224  46.800  442.624  38.224  5.902  1.810  5.567  
150 x 70  4.0 11.280  8.855  1.838  84.728  393.942  46.091  5.253  2.741  5.910  
150 x 70  6.0 16.680  13.094  1.912  126.844  567.112  66.358  7.561  2.758  5.831  
150 x 75  4.0 11.680  9.169  2.024  103.961  415.263  51.373  5.537  2.983  5.963  
150 x 75  6.0 17.280  13.565  2.097  155.636  598.234  74.223  7.976  3.001  5.884  
200 x 75  4.5 15.345  12.046  1.776  118.215  906.376  66.578  9.064  2.776  7.685   
20 © EAC 2023  – All rights reserved  
 Size 
B x D  
 Thickness, t  Area, A  Mass, 
w Centroid  
 Second Moment of 
area  Elastic section 
modulus  
 Radius of gyration  
 
mm mm cm2 Kg/m  Y-axis 
Py 
 cm Axis x -x 
Ix 
cm4 Axis y -y 
Iy 
cm4 Axis x-x 
Zx 
cm3 Axis y -y 
Zy 
cm3 Axis x -x 
Rx 
cm Axis y -y 
Ry 
cm 
200 x 75  4.0 13.680  10.739  1.757  105.128  812.250  59.833  8.122  2.772  7.706  
200 x 75  5.0 17.000  13.345  1.794  131.294  998.917  73.180  9.989 2.779  7.665  
200 x 75  6.0 20.280  15.920  1.831  157.433  1179.314  85.979  11.793  2.786  7.626  
200 x 100  6.0 23.280  18.275  2.723  369.445  1461.674  135.692  14.617  3.984  7.924  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
© EAC 2023  – All rights reserved  21 
 
 
 
Figure A.4 ― Plain equal angles section  
 
  
22 © EAC 2023  – All rights reserved  
 Table A.4  — Dimensions and properties for cold formed  plain equal angle s sections  
Size,  
B × D,  
mm  Thickness, 
t,  
mm  Cross 
sectional 
area, A,  
cm2  Mass, w,  
kg/m  Centroid, 
P,  
cm  Axis X -X Axis Y -Y 
Ix  
cm4  Zx  
cm3  Rx  
cm  Iy  
cm4  Zy  
cm3  Ry  
cm  
20 x 20  2.5  0.888  0.69  1.10  0.33  0.24  0.614  0.33  0.23  0.614  
25 x 25  2.5  1.13  0.89  0.75  0.68  0.39  0.775  0.68  0.38  0.775  
25 x 25  2.0  1.65  1.09   0.42  1.06  1.12  0.42  1.06  1.12  
25 x 25  3  1.33  1.05  0.78  0.80  0.46  0.773  0.80  0.46  0.773  
30 x 30  2.0  1.23  1.10   1.10  1.05  1.09  1.10  1.05  1.09  
30 x 30  2.5  1.38  1.08  0.87  1.24  0.58  0.941  1.24  0.58  0.941  
30 x 30  3  1.63  1.28  0.90  1.43  0.68  0.935  1.43  0.68  0.935  
32 x 32  3  1.74  1.37  0.91  1.54  0.67  0.94  1.54  0.67  0.94  
32 x 32  4  2.24  1.76  0.898  1.86  0.81  0.91  1.86  0.81  0.91  
32 x 32  4.5  2.48  1.88  0.906  1.99  0.87  0.90  1.99  0.87  0.90  
32 x 32  6  3.12  2.45  1.03  2.30  1.06  0.86  2.30  1.06  0.86  
40 x 40  2.0  1.46  1.14   2.46  1.23  1.21  2.46  1.23  1.21  
40 x 40  2.5  1.88  1.47  1.13  2.96  1.03  1.25  2.96  1.03  1.25  
40 x 40  3  2.22  1.74  1.06  3.18  1.08  1.20  3.18  1.08  1.20  
40 x 40  4  2.88  2.26  1.097  3.92  1.32  1.17  3.92  1.32  1.17  
40 x 40  4.5  3.20  2.51  1.11  4.24  1.47  1.15  4.24  1.47  1.15  
40 x 40  6  4.08  3.20  1.23  5.66  2.04  1.18  5.66  2.04  1.18  
50 x 50  2.0  1.86  1.46         
50 x 50  3  2.83  2.22  1.40  7.01  1.94  1.57  7.01  1.94  1.57  
50 x 50  4  3.70  2.90  1.45  8.89  2.50  1.56  8.89  2.50  1,56  
50 x 50  4.4  4.10  3.22  1.42  8.91  2.49  1.47  8.91  2.49  1.47  
50 x 50  6  5.28  4.14  1.48  12.43  3.53  1.53  12.43  3.53  1.53  
60 x 60  4  4.50  3.53  1.68  16.01  3.70  1.88  16.01  3.70  1.88  
60 x 60  6  6.53  5.13  1.80  22.55  5.37  1.87  22.55  5.37  1.87  
65 x 65  4.5  5.45  4.28  1.79  19.03  4.04  1.87  19.03  4.04  1.87  
65 x 65  6  7.08  5.56  1.85  25.90  5.57  1.91  25.90  5.57  1.91  
75 x 75  6  8.69  6.78  2.09  46.88  8.67  2.33  46.88  8.67  2.33  
90 x 90  6  10.08  7.91  2.48  74.42  11.41  2.72  74.42  11.41  2.72  
100 x 100  6  11.30  8.87  2.80  112.59  15.59  3.15  112.28  15.59  3.15  
 
  
© EAC 2023  – All rights reserved  23 
  
 
Figure A.5 — Plain unequal angles  
Table A.5 — Dimensions and properties for cold formed  plain unequal angle sections  
Size 
B x D  
 
mm Thicknes
s 
t 
 
mm Area  
A 
 
cm2 Mass  
w 
 
Kg/m  Centroid  
 Axis x -x Axis y -y 
Px 
cm Py 
cm Ix 
cm4 zx 
cm3 rx 
cm Iy 
cm4 zy 
cm3 ry 
cm 
50 x 40  6.0 4.65 3.67 1.53 1.11 9.96 2.87 1.04 5.41 1.83 1.08 
65 x 50  6.0 6.18 4.85 1.99 1.31 11.68  2.59 1.24 11.74  3.12 1.38 
75 x 50  6.0 6.78 5.32 2.40 1.22 35.81  7.02 1.15 17.58  4.57 1.61 
90 x 65  6.0 8.58 6.73 2.76 1.59 66.56  10.67  1.51 28.58  5.73 1.83 
90 x 75  6.0 9.78 7.61 3.01 1.93 94.54  13.53  1.76 45.09  7.86 2.15 
 
 
Figure A.6 ― Cold formed  outwardly lipped channel section  
 
Table A.6  – Dimensions and properties for cold formed  outwardly lippe d channel sections  
Size Thicknes
s 
t 
 Area  
A 
 
cm2 Mass  
w 
 
Kg/m  Centro
id 
p 
 Axis x -x Axis y -y 
B 
mm D 
mm C 
mm Ix 
cm4 zx 
cm3 rx 
cm Iy 
cm4 zy 
cm3 ry 
cm  
24 © EAC 2023  – All rights reserved  
 mm cm 
20 20 10 1.5 1.20 0.94 1.116  0.6860  0.610  1.75 1.726
0 1.730  1.195  
20 20 15 2.0 1.54 1.20 1.118  0.7910  0.710  0.72 2.130
0 0.930  1.180  
25 25 15 1.5 1.43 1.12 1.305  1.2900  0.990  0.95 2.654
0 1.020  1.363  
25 25 15 2.0 1.84 1.44 1.313  1.5630  0.920  0.92 3.300
0 1.290  1.340  
40 25 15 1.5 1.88 1.47 2.077  4.0470  1.950  1.47 3.276
0 1.260  1.321  
40 25 15 2.0 2.44 1.91 2.078  5.0220  2.410  1.44 4.090
0 1.600  1.295  
50 50 20 1.5 2.70 2.12 2.366  10.0800  3.820  1.93 16.45
00 3.780  2.467  
50 50 20 2.0 3.54 2.77 2.365  12.8000  3.850  1.90 21.06
00 4.900  2.442  
75 50 20 2.0 4.74 3.71 3.590  36.9700  9.850  2.79 31.01
00 6.460  2.559  
75 50 20 2.5 5.84 4.58 3.588  44.5700  11.88
0 2.76 37.43
00 7.880  2.532  
75 50 20 3.0 6.91 5.42 3.586  51.5600  13.74
0 2.73 43.40
00 9.230  2.507  
100 50 30 2.0 5.93 4.66 5.166  79.3600  15.36
0 3.66 41.85
00 7.890  2.657  
100 50 30 2.5 7.33 5.76 5.167  96.400  18.65
0 3.63 50.74
00 9.660  2.631  
100 50 30 3.0 8.70 6.28 5.166  112.4000
0 21.75
0 3.60 59.06
00 11.35
0 2.605  
 
 
 
 
 
 
 
  
© EAC 2023  – All rights reserved  25 
 
 
 
Figure A.7 ― Circular tubes  
Table A.7  — Dimensions and properties for cold formed  circular tubes  
 
Diameter,  
D 
mm Thickness,  
t 
mm Area,  
A 
cm2 Mass,  
w 
kg/m  Second 
Moment of 
Area, I  
cm4 Radius of 
gyration,  
 r  
cm Elastic 
section 
modulus,  
z 
cm3 
10 1.00 0.28 0.22  0.0290  0.3202  0.06 
10 1.20 0.33 0.26  0.0327  0.3140  0.07 
10 1.50 0.40 0.31  0.0373  0.3052  0.07 
12 1.00 0.35 0.27  0.0527  0.3905  0.09 
12 1.20 0.41 0.32  0.0601  0.3842  0.10 
12 1.50 0.49 0.39  0.0696  0.3750  0.12 
16 1.00 0.47 0.37  0.1331  0.5315  0.17 
16 1.20 0.56 0.44  0.1538  0.5250  0.19 
16 1.50 0.68 0.54  0.1815  0.5154  0.23 
16 2.00 0.88 0.69  0.2199  0.5000  0.27 
20 1.00 0.60 0.47  0.2701  0.6727  0.27 
20 1.20 0.71 0.56  0.3144  0.6660  0.31 
20 1.50 0.87 0.68  0.3755  0.6562  0.38 
20 2.00 1.13 0.89 0.4638  0.6403  0.46 
22 1.00 0.66 0.52  0.3646  0.7433  0.33 
22 1.20 0.78 0.62  0.4255  0.7366  0.39 
22 1.50 0.97 0.76  0.5103  0.726 7 0.46 
22 2.00 1.26 0.99  0.6347  0.7106  0.58 
25 1.00 0.75 0.59  0.5439  0.8493  0.44 
25 1.20 0.90 0.70  0.6370  0.8425  0.51 
25 1.50 1.11 0.87  0.7677  0.8325  0.61 
25 2.00 1.45 1.13  0.9629  0.8162  0.77 
28 1.00 0.85 0.67  0.7741  0.9552  0.55 
28 1.20 1.01 0.79  0.9090  0.9485  0.65 
28 1.50 1.25 0.98  1.0999  0.9384  0.79 
28 2.00 1.63 1.28  1.3888  0.9220  0.99 
30 1.00 0.91 0.72  0.9590  1.0259  0.64 
30 1.20 1.09 0.85  1.1278  1.0191  0.75 
30 1.50 1.34 1.05  1.3676  1.0090  0.91  
26 © EAC 2023  – All rights reserved  
 30 2.00 1.76 1.38  1.733 1  0.9925  1.16 
30 3.00 2.55 2.00  2.3478  0.9605  1.57 
32 1.00 0.97 0.76  1.1713  1.0966  0.73 
32 1.20 1.16 0.91  1.3791  1.0898  0.86 
32 1.50 1.44 1.13  1.6755  1.0796  1.05 
32 2.00 1.89 1.48  2.1303  1.0630  1.33 
32 3.00 2.73 2.15  2.9044  1.0308  1.82 
38 1.00 1.16 0.91  1.9908  1.3086  1.05 
38 1.20 1.39 1.09  2.3513  1.3018  1.24 
38 1.50 1.72 1.35  2.8696  1.2916  1.51 
38 2.00 2.26 1.78  3.6761  1.2748  1.93 
38 3.00 3.30 2.59  5.0889  1.2420  2.68 
42 1.00 1.29 1.01  2.7085  1.4500  1.29 
42 1.20 1.54 1.21  3.2037  1.4431  1.53 
42 1.50 1.91 1.50  3.9189  1.4329  1.87 
42 2.00 2.51 1.97  5.0398  1.4160  2.40 
42 3.00 3.68 2.89  7.0306  1.3829  3.35 
45 1.00 1.38 1.09  3.3473  1.5560  1.49 
45 1.20 1.65 1.30  3.9632  1.5491  1.76 
45 1.50 2.05 1.61  4.8550  1.538 9 2.16 
45 2.00 2.70 2.12  6.2588  1.5219  2.78 
45 3.00 3.96 3.11  8.7740  1.4887  3.90 
48 1.00 1.48 1.16  4.0795  1.6621  1.70 
48 1.20 1.76 1.39  4.8342  1.6552  2.01 
48 1.50 2.19 1.72  5.9295  1.6449  2.47 
48 2.00 2.89 2.27  7.6602  1.6279  3.19 
48 3.00 4.24 3.33  10.7845  1.5945  4.49 
50 1.20 1.84 1.44  5.4805  1.7259  2.19 
50 1.50 2.29 1.79  6.7274  1.7156  2.69 
50 2.00 3.02 2.37  8.7021  1.6985  3.48 
50 3.00 4.43 3.48  12.2828  1.6651  4.91 
51 1.00 1.57 1.23  4.9113  1.7681  1.93 
51 1.20 1.88 1.47  5.8242  1.7612  2.28 
51 1.50 2.33 1.83  7.1519  1.7509  2.80 
51 2.00 3.08 2.42  9.2567  1.7339  3.63 
51 3.00 4.52 3.55  13.0814  1.7004  5.13 
57 1.20 2.10 1.65  8.1922  1.9733  2.87 
57 1.50 2.62 2.05  10.0787  1.9629  3.54 
57 2.00 3.46 2.71  13.0860  1.9458  4.59 
57 3.00 5.09 4.00  18.6105  1.9121  6.53 
60 1.20 2.22 1.74  9.5854  2.0793  3.20 
60 1.50 2.76 2.16  11.8021  2.0690  3.93 
60 2.00 3.64 2.86  15.3443  2.0518  5.11 
60 3.00 5.37 4.22  21.8808  2.0180  7.29 
63 1.20 2.33 1.83  11.1282  2.1854  3.53 
63 1.50 2.90 2.28  13.7117  2.1750  4.35  
© EAC 2023  – All rights reserved  27 
 63 2.00 3.83 3.01  17.8485  2.1578  5.67 
63 3.00 5.66 4.44  25.5138  2.1240  8.10 
76 1.50 3.51 2.76  24.3698  2.6345  6.41 
76 2.00 4.65 3.65  31.8536  2.6173  8.38 
76 3.00 6.88 5.40  45.9133  2.5831  12.08  
89 2.00 5.47 4.29  51.7527  3.0767  11.63  
89 3.00 8.11 6.36  75.0345  3.0424  16.86  
89 3.25 8.76 6.87  80.5982  3.0339  18.11  
89 4.00 10.68  8.39  96.6927  3.0085  21.73  
89 4.85 12.82  10.07   113.8834  2.9801  25.59  
100 2.00 6.16 4.83  73.9614  3.4655  14.79  
100 3.00 9.14 7.18  107.6386  3.4311  21.53  
100 4.00 12.07  9.47  139.2333  3.3971  27.85  
114 2.00 7.04 5.52  110.3923  3.9604  19.37  
114 3.00 10.46  8.21  161.2588  3.9259  28.29  
114 5.00 17.12  13.44   254.8464  3.8578  44.71  
114 6.00 20.36  15.98   297.7673  3.8243  52.24  
127 3.00 11.69  9.18  224.7795  4.3853  35.40  
127 4.00 15.46  12.14   292.6514  4.3510  46.09  
127 5.00 19.17  15.05   357.1861  4.3170  56.25  
127 6.00 22.81  17.91   418.4948  4.2833  65.90  
140 3.00 12.91  10.14   303.1149  4.8448  43.30  
140 4.00 17.09  13.42   395.5 200  4.8104  56.50  
140 5.00 21.21  16.65   483.8189  4.7762  69.12  
140 6.00 25.26  19.83   568.1352  4.7424  81.16  
152 3.00 14.04  11.03   389.9171  5.2690  51.30  
152 4.00 18.60  14.60   509.6575  5.2345  67.06  
165 3.00 15.27  11.99   501.1081  5.7285  60.74  
165 4.00 20.23  15.88   656.0271  5.6940  79.52  
165 4.85 24.40  19.16   783.1354  5.6648  94.93  
216 5.00 33.15  26.02   1,845.7691  7.4621  170.90  
216 6.00 39.59  31.08   2,184.1362  7.4277  202.23  
216 7.00 45.97  36.08   2,512.6963  7.3934  232.66  
 
 
 
  
28 © EAC 2023  – All rights reserved  
  
Figure A.8 ― Zed purlins  
 
Table A.8  — Dimensions and properties for cold formed  steel zed purlins  
Dimensions  Area  Mas
s Axis x -x Axis y -y 
B D C t A w Ix zx Iy zy ry 
mm mm mm mm cm2 kg/m  cm4 cm3 cm4 cm3 cm 
50.0 100.0  22.0 2.0 4.44 3.54 70.1000  18.810  33.8700  6.800  2.70 
50.0 115.0  22.0 2.0 4.78 3.78 98.2400  17.910  33.8900  6.800  2.82 
50.0 130.0  22.0 2.0 5.06 4.02 125.9900  19.040  33.8700  6.800  2.56 
50.0 140.0  22.0 2.0 5.28 4.17 157.8000  22.600  33.8700  6.800  2.50 
50.0 150.0  22.0 2.0 5.44 4.33 194.1400  25.470  33.870 0 6.800  2.44 
50.8 165.1  22.2 2.0 5.92 4.65 234.9600  28.460  33.8700  6.800  2.39 
50.8 165.1  22.2 2.5 7.25 5.94 278.7000  33.780  33.8700  7.590  2.33 
50.8 177.8  22.2 2.5 7.59 5.90 340.7300  38.320  37.6300  7.590  2.23 
63.5 177.8  22.2 2.5 8.23 6.40 389.5100  43.81 0 67.9100  10.910  2.88 
65.0 175.0  22.0 2.0 6.58 5.17 331.7000  37.310  36.1300  10.100  3.04 
76.2 177.8  22.2 3.0 10.42  8.17 516.5200  58.100  128.5800  17.210  3.50 
76.2 254.0  22.2 3.0 13.12  10.3
0 123.6000  97.380  148.9900  19.950  3.37 
50.8 76.0 19.0 1.5 2.90 2.28 38.2500  8.030  20.2700  4.070  1.63 
50.8 76.0 19.0 2.0 3.83 3.01 51.0000  10.700  27.0200  5.430  2.18 
50.8 95.3 20.0 2.0 4.52 3.52 63.9400  13.420  33.8700  6.800  2.73 
50.8 101.6  20.0 2.0 4.26 3.34 70.1800  13.810  31.4500  4.980  2.41 
50.8 114.6  20.0 2.0 4.90 3.85 98.2400  17.190  33.8700  6.800  2.62 
50.8 127.0  20.0 2.0 5.16 4.05 125.9900  19.840  33.8700  6.800  2.56 
50.8 139.7  20.0 2.0 5.40 4.24 157.9000  22.600  33.8700  6.800  2.50 
50.8 152.4  20.0 2.0 5.66 4.44 194.1400  25.470  33.8700  6.800  2.44 
50.8 165.1  20.0 2.0 5.92 4.65 234.9600  28.460  33.8700  6.800  2.39 
50.8 165.1  20.0 2.5 7.25 5.94 278.7000  33.780  33.8700  7.590  2.33 
63.5 165.1  20.0 2.5 9.91 6.14 301.5000  36.540  36.7900  10.910  2.31 
50.8 177.8  20.0 2.0 6.07 4.72 272.5800  30.660  30.1000  6.072  1.78 
50.8 177.8  20.0 2.5 7.59 5.90 340.7300  38.320  37.6300  7.590  2.23 
63.5 177.8  20.0 2.5 8.23 6.40 389.5100  43.810  67.9100  10.910  2.88 
76.2 177.8  20.0 3.0 10.42  8.17 516.5200  58.100  128.5800  17.210  3.50 
50.8 203.0  20.0 2.0 6.95 5.66 440.8000  43.700  55.1000  8.010  2.78 
76.2 203.0  20.0 2.5 7.10 7.93 548.2100  49.300  58.7100  57.400  9.01  
© EAC 2023  – All rights reserved  29 
 76.2 203.0  20.0 3.0 10.42  8.36 751.5000  56.800  68.3000  11.120  2.85 
76.2 254.0  20.0 2.5 9.84 7.65 962.0000  71.500  57.4000  9.070  2.31 
76.2 254.0  20.0 3.0 13.12  10.3
0 123.6000  97.380  148.99 00 19.950  3.37 
63.5 304.0  20.0 2.5 12.61  9.91 1568.1000  98.100  148.2000  17.810  3.81 
76.2 304.0  20.0 2.5 12.78  10.0
4 1570.5000  99.400  149.5000  17.960  3.94 
63.5 304.0  20.0 3.0 13.82  11.5
6 1748.3000  116.820  178.2000  19.620  3.48 
76.2 304.0  20.0 3.0 13.96  11.8
1 1761.5000  117.900  179.5200  20.050  3.53 
 
 
 
 
 
 
Figure A.9 ― Cold formed  mono rail sections  
Table A.9 — Dimensions and properties or cold formed  steel mono rail sections  
Dimensions  Thickness  Area  Mass  Axis x -x Axis y -y 
B 
mm D 
mm C 
mm C1 
mm E 
mm t 
mm A 
cm2 w 
kg/m  Ix 
cm4 zx 
cm3 rx 
cm Iy 
cm4 zy 
cm3 rx 
cm 
57 67 15.0 10.0 13.7 3.0 6.27 4.92 34.3400  9.190  2.34 31.6300  11.100  2.25 
42 54 12.5 8.0 8.0 2.5 3.97 3.12 14.35000  4.640  1.90 11.1100  5.290  1.67 
33 34 9.5 6.5 10.5 2.0 2.22 1.74 3.2200  1.650  1.20 3.6700  2.220  1.28 
 
  
30 © EAC 2023  – All rights reserved  
 
 
 
Figure A.10 ― Bottle sections  
  
© EAC 2023  – All rights reserved  31 
 Table A.10  — Dimensions and properties of cold formed  steel bottle sections  
Nominal  
size Dimensions  Thickness  Mass  
B 
mm C 
mm D 
mm E 
mm F 
mm G 
mm t 
mm w 
kg/m  
94 34 64 30 15 2 15 1.0 1.74 
94 34 64 30 15 2 15 1.2 2.10 
94 34 64 30 15 2 15 1.5 2.60 
94 34 64 30 15 2 15 2.0 3.50 
 
 
 
 
Figure A.11 ― Door frame  
Table A.11  (a) — Dimensions and properties of cold formed  steel door frame sections  
Nominal  
size Dimensions  Thickness  Mass  
B 
mm C 
mm D 
mm E 
mm F 
mm G/H 
mm t 
mm w 
kg/m  
150 48 54 48 13 30.00  12.00  1.0 1.9 
130 45 50 35 15.00  30.15  15.15  1.0 1.8 
130 45 50 35 15.00  30.15  15.15  1.2 2.1 
130 45 50 35 15.00  30.15  15.15  1.5 2.6 
130 45 50 35 15.00  30.15  15.15  2.0 3.5 
 
 
 
 
 
Figure A.12 — Half door frame section  
 
 
32 © EAC 2023  – All rights reserved  
 Table A.11 (b) – Dimensions and properties of cold formed  steel door frame section  
A B C D E F G Thickness  
95 50 45 42 15 30 11 1.0 
95 50 45 42 15 30 11 1.2 
95 50 45 42 15 30 11 1.5 
100 48 52 42 12 29 13 1.0 
100 48 52 42 12 29 13 1.2 
100 48 52 42 12 29 13 1.5 
105 60 45 60 15 45 12 1.0 
105 60 45 60 15 45 12 1.2 
105 60 45 60 15 45 12 1.5 
125 70 55 60 15 45 12 1.0 
125 70 55 60 15 45 12 1.2 
125 70 55 60 15 45 12 1.5 
 
 
 
Figure A.13 ― Cold formed  fascia  board  
Table A.12 — Dimensions and properties of cold formed  steel fascia board sections  
Nominal  size 
mm Dimensions  Thickness  Mass  
B 
mm C 
mm D or E  
mm t 
mm w 
kg/m  
150 x 30 150 30 13 1.0 1.80 
150 x 30  150 30 13 1.2 2.17 
150 x 30  150 30 13 1.5 2.58 
190 x 30  190 30 13 1.2 2.38 
190 x 30  190 30 13 1.5 2.88 
200 x 30  200 30 13 1.2 2.67 
200 x 30  200 30 13 1.5 3.25 
 
  
© EAC 2023  – All rights reserved  33 
 
 
 
  
Figure A.14 ― Omega section s 
 
Table A.13 — Dimensions and properties of Omega sections  
Dimensions in millimetres  
A  
B   
C  D  Thickness  
t 
35 50 45 17 1.0 mm  
35 50 45 17 1.2 mm  
35 50 45 17 1.5 mm  
35 50 45 17 2.0 mm  
 
 
 
 
. DEAS 134:2023    
 
© EAC 2023  – All rights reserved