= 
KENYA STANDARD                       KS 104: 2017 
                                                                                                                                       
 
 
 
 
 
 
 
 
 
 
Cold rolled steel sections — Specification   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
© KEBS 20 15                                                                                    Third Edition 20 15 
 
 KS 104:2015  
ii                 © KEBS 2015 — All rights reserved  TECHNICAL COMMITTEE REPRESENTATION  
The following organizations were represented on the Technical Committee:  
1. Architectural Association of Kenya  
2. Dedan Kimathi university of Techn ology  
3. Kenya National Accreditation services  
4. Athi River Steel  
5. Architectural association of Kenya  
6. Consumer Information Network  
7. Devki Steel Mills Ltd   
8. Steel Makers  Ltd  
9. Blue nile  
10. Doshi Group of Companies  
11. Tononoka Steels  
12. Kenya Association of Manufacturers  
13. Ministry of Transport and Infrastructure  
14. National Housing Corporation  
15. Kenya Bureau of Standards — Secretariat  
 
 
REVISION OF KENYA STANDARDS  
 
In order to keep abreast of progress in industry, Kenya Standards shall be regularly reviewed. Suggestions 
for impr ovements to published standards, addressed to the Managing Director, Kenya Bureau of Standards, 
are welcome.  
 
 
 
 
 
© Kenya Bureau of Standards, 20 15 
Copyright. Users are reminded that by virtue of Section 25 of the Copyright Act, Cap. 12 of 2001  of the Laws of Kenya, copyright 
subsists in all Kenya Standards and except as provided under Section 26 of this Act, no Kenya Standard produced by Kenya Bure au of 
Standards may be reproduced, stored in a retrieval system in any form or transmitted by any means wi thout prior permission in writing 
from the Managing Director . 
 
  
 KENYA STANDARD                  KS 104: 2017  
© KEBS 2015 — All rights reserved                      
   iii   
 
 
 
  
 
 
 
Cold rolled steel sections — Specification   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
KENYA BUREAU OF STANDARDS (KEBS)  
Head Office:  P.O. Box 54974, Nairobi -00200, Tel.: (+254 020) 605490, 602350, Fax: (+254 020) 604031  
E-Mail: info@kebs.org,  Web:http://www.kebs.org  
 
Coast Region          Lake Region           North Rift Region  
P.O. Box 99376, Mombasa -80100    P.O. Box 2949, Kisumu -40100    P.O. Box 2138, Nakuru -20100  
Tel.: (+254 041) 229563, 230939/40   Tel.: (+254 057) 23549, 22396    Tel.: (+254 051) 210553, 210555  
Fax: (+254 041) 229448       Fax: (+254 057) 21814KS 104:2017  
iv                  © KEBS 2014 —All rights reserved   Foreword  
This Kenya Standard was  prepared by the Steel Technical Committee under the guidance of the Standards 
Projects Committee and it is in accordance with the procedures of the Kenya Bureau of Standards.  
 
This standard contains tables of section properties and dimensions of cold roll ed steel sections which are 
available in Kenya.   
During the preparation of this standard, reference was made to the following documents:  
 
ISO 10799 -1:2011 Cold -formed welded structural hollow sections of non -alloy and fine grain steels -- Part 1: 
Technica l delivery conditions  
 
ISO 10799 -2:2011 Cold -formed welded structural hollow sections of non -alloy and fine grain steels -- Part 2: 
Dimensions and sectional properties  
 
BS EN 10162:2003 Cold rolled steel sections. Technical delivery conditions. Dimensional  and cross -
sectional tolerances  
 
Acknowledgement is hereby made for the assistance received from these sources.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
          KENYA STANDARD                             KS 104:2017 
© KEBS 2015 — All rights reserved  1 Cold rolled steel sections — Specification   
 
1 Scope  
 
This Kenya Standard specifies the dimensions and sectional properties of cold rolled steel sections of 
thicknesses up to 8 mm for use in structural and general purpose applications.  The sections are lis ted in 
Tables 5 to 17 . 
 
2 Normative references  
 
The following referenced documents are indispensable for the application 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. Information on currently valid national and international 
standards can be obtained from the Kenya Bureau of Standards.  
 
KS 02 -103, Specification for the use of cold formed steel structural members  
 
KS ISO 6892 -1, Metallic materials -Tensile testing — Part 1: Method of test at room temperature  
 
3 Nomenclature  
 
The following nomenclature standard in the industry shall be used. Dimensions are usually in mm units and 
section properties in cm units.  
 
B,C,D   Dimensions of section           mm 
t   Sheet thickness             mm 
P   Distance from edge to section centre of gravity   mm 
A   Sectional area             cm2 
Z   Section modulus of section I/p        cm3 
I   Second moment of area          cm4 
r   Radius of gyration of section       cm 
x,y   With reference to x or y axis      
w   Mass per linear metre           kg/m  
L   Length               m 
 
4 Dimensions and tolerances  
 
4.1 Dimensions  
 
Dimensions of sections shall be in accordance with the tables of this standard.  
 
4.2 Tolerances  
 
4.2.1.1  Tolerances in dimensions shall be as specified in Table 1.  
 
4.2.2  Tolerances in weight shall be as specified in Clause 5.  
 
Table 1 — Tolerances in dimensions  
 
Characteristic  Tolerance  
Outside dimension  (a)  1.5 mm or 2 %, whichever is less  
Deviation from straightness  0.17 % of total length  
Squareness of corners  90  2 
Twist ( see Figure 1)  Not to exceed 2 mm ±  0.5 mm per metre  
A/1KS 104:2017 
                 © KEBS 2015 —  All rights reserved  2 Characteristic  Tolerance  
Concavity/convexity  i) lower than 5mm±10% or 0.5 mm whichever 
is lower  
ii) above 5mm ± 0.5mm  
Outside bend radii for right angle bends  3t max  
Length  (6 metres) – exact  
      - standard  -0 and + 10 mm  
-10 mm and +100 mm  
Thickness   3% for 1mm  
above 1mm ± 7.5%  
a This tolerance shall be measured at a distance of not less than 100 mm from the end of the 
section.  
 
 
 
 
Figure 1 — Measurement of twist (V)  
 
 
5 Tolerances in weight  
 
Tolerances in weight shall be:  
 
 — ± 7.5% for individual lengths of over 1 metre.  
 
 — ± 5% for batches of 5 tonnes and above.  
 
6  Compound sections  
 
Compound sections may be formed by suitably connecting two or more simple sections.  For example, an 
‘I’ section can be made from two channels back -to-lip, a ‘T’ from two angles, etc. Methods of joining sections 
are specified in Clauses 29, 30 and 37 of KS  02-103. 
 
Section properties of compound sections may be calculated using the properties of simple sections.  
 
KS 104:2017 
© KEBS 2015 — All rights reserved  
THIS IS A DRAFT JAN 2017  3 Compound sections shall be flush at matching joints within 2.0 mm.  
7    Manufacture  
 
7.1 Manufacture of steel  
 
Unless otherwise agreed at the time of enquiry and/or order, the steel -making process shall be at the option 
of the manufacturer.  If so requested in the order, the purchaser shall be informed about the steel -making 
process used.  
 
7.2    Grade designation  
 
The designation of the grades of materi al 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 
 
7.3   Chemical composition  
 
The results of ladle chemical analysis of steel in accordance with KS ISO 6892 -1 from which a hollow section 
is manufactured shall comply with appropriate limits given in 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 content of these elements shall not exceed 0.15 %.  
 
Table 3 — Ladle chemical analysis limits  
 
Grade of steel  Maximum content (%)  
Carbon  Phosphorus  Sulphur  
210 0.20 0.05 0.05 
250 0.25 0.06 0.06 
360 — — 0.04 
 
 
7.4    Mechanical properties  
 
The mechanical properties obtained from test samples taken from the steel section in accordance with 8, 
shall comply with Table 4.  If other grades of steel are used, their mechanical properties shall be agreed on 
between the purchaser and the manufacturer.  
 
 
 
Table 4 — Tensile test requirements  
 
Grade of steel  Minimum yield 
stress  
N/mm2 Ultimate tensile stress  
N/mm2 Minimum elongation as 
a proportion of gauge 
length per cent  
210 210 340 24 
250 250 420 22 
360 360 480 20 KS 104:2017 
                 © KEBS 2015 —  All rights reserved  4  
 
8    Sampling   
 
At least one sample shall be selected from the following batch sizes:  
 
i) A 20 tonne or less batch of sections having outside diameter of less than 90 mm.  
 
ii) A batch of less than 40 tonne 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.  
 
9    Test piece  
 
The test piece shall consist of a strip 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:  
 
i) Sides of the test piece shall be parallel within a maximum variation, along parallel length, of ± 0.2 % 
of nominal width.  
 
i) The tripped ends and parallel lengths of the test piece shall be coaxial.  
 
iii) Lo = 5.65 A and shall be within  5 % of the nominal value.  
 
where,  
Lo = gauge length, and   
 
A = sectional area.  
 
iv) Minimum parallel length Lp =Lo + 2D for circular sections, and  Lp + Bn for square or rectangular 
sections.  
 
where,  
Lo  =  gauge length; and  
 
Bn =  nominal width, the lesser dimension of B and D. 
 
v) The width of the test piece shall be less than 6 mm, unless the product width precludes use of 
wider pieces.  
 
vi) 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.  
 
 
10 Marking  
Each piece  shall be indelibly and legibly  marked  /printed at least once in every 6 meters piece with the 
Manufacturer’s Name or R egistered Tradem ark and the outside dimension and nominal thickness   
 KS 104:2017 
© KEBS 2015 — All rights reserved  
THIS IS A DRAFT JAN 2017  5  
 
Table 5 — Dimensions and properties for cold rolled square hollow sections  
 
Size 
B X D  
mm Thickness  
t 
mm A 
cm2 Mass  
w 
kg/m  Axis  X -X and Y -Y 
Ix = Iy 
cm4 Zx = Z y 
cm3 rx = ry 
cm 
12 x 12  1.0 0.44 0.35 0.09 0.15 0.45 
12 x 12  1.2 0.51 0.41 0.10 0.17 0.44 
12 x 12  1.5 0.63 0.49 0.12 0.20 0.43 
16 x 16  1.0 0.60 0.47 0.23 0.28 0.61 
16 x 16  1.2 0.71 0.56 0.26 0.33 0.60 
16 x 16  1.5 0.87 0.68 0.31 0.39 0.59 
16 x 16  2 1.12 0.88 0.37 0.47 0.57 
20 x 20  1.0 0.76 0.58 0.46 0.46 0.78 
20 x 20  1.2 0.90 0.071  0.53 0.53 0.77 
20 x 20  1.5 1.11 0.87 0.64 0.64 0.75 
20 x 20  2 1.44 1.13 0.79 0.79 0.73 
25 X 25  1.0 0.96 0.75 0.92 0.74 0.98 
25 X 25  1.2 1.14 0.90 1.08 0.86 0.97 
25 X 25  1.5 1.41 1.11 1.30 1.04 0.96 
25 X 25  2 1.84 1.44 1.63 1.31 0.94 
25 X 25  3 2.64 2.07 2.17 1.74 0.90 
30 X 30  1.0 1.16 0.91 1.63 1.09 1.18 
30 X 30  1.2 1.38 1.08 1.91 1.28 1.17 
30 X 30  1.5 1.71 1.34 2.32 1.55 1.16 
30 x 30  2 2.24 1.75 2.94 1.96 1.14 
30 x 30  3 3.24 2.54 3.99 2.66 1.11 
40 x 40  1.0 1.56 1.22 3.96 1.98 1.59 
40 x 40  1.2 1.86 1.46 4.68 2.34 1.58 
40 x 40  1.5 2.31 1.81 5.72 2.86 1.57 
40 x 40  2 3.04 2.39 7.34 3.67 1.55 
40 x 40  2.5 3.75 2.94 8.83 4.41 1.53 
40 x 40  3 4.44 3.48 10.19  5.10 1.51 
40 x 40  4 5.76 4.52 12.60  6.30 1.48 
50 x 50 1.2 2.34 1.84 9.30 3.72 1.99 
50 x 50  1.5 2.91 2.28 11.42  4.57 1.98 
50 x 50  2 3.84 3.01 14.77  5.91 1.96 
50 x 50  2.5 4.75 3.73 17.91  7.16 1.94 
50 x 50  3 5.64 4.43 20.85  8.34 1.92 
50 x 50  4 7.36 5.78 26.15  10.46  1.88 
KS 104:2017 
                 © KEBS 2015 —  All rights reserved  6  
 
Table 5 — Dimensions and properties for cold rolled square hollow sections (Contd)   
            
Size 
B X D  
mm Thickness  
t 
mm A 
 
cm2 Mass  
w 
kg/m  Axis  X - X and Y – Y 
Ix = Iy 
cm4 Zx = Z y 
cm3 rx = ry 
cm 
60 x 60  1.5 3.51 2.75 20.03  6.67 2.38 
60 x 60  2 4.64 3.64 26.04  8.68 2.37 
60 x 60  3 6.84 5.37 37.14  12.38  2.33 
60 x 60  4 8.96 7.03 47.07  15.69  2.29 
75 x 75  2.5 7.25 5.69 63.59  16.96  2.96 
75 x 75  3 8.64 6.78 74.78  19.94  2.94 
75 x 75  4 11.36  8.92 95.75  25.53  2.90 
75 x 75  5 14.00  11.00  114.92  30.65  2.87 
75 x 75 6 16.56  13.00  132.0  35.31  2.83 
100 x 100  3 11.64  9.14 182.70  36.54  3.96 
100 x 100  4 15.36  12.18  236.34  47.26  3.91 
100 x 100  5 19.00  14.92  286.58  57.32  3.88 
100 x 100  6 22.56  17.71  333.59  66.72  3.85 
100 x 100  8 29.44  23.11  418.44  83.69  3.77 
120 x 120 3 14.04  11.02  320.53  53.42  4.77 
120 x 120  4 18.56  14.57  416.73  69.45  4.74 
120 x 120  6 27.36  21.48  594.26  99.04  4.66 
125 x 125  3 14.64  11.49  363.39  58.14  3.05 
125 x 125  4 19.36  15.20  472.93  75.67  4.94 
125 x 125  5 24.00  18.84  577.00  92.32  4.90 
125 x 125  6 28.56  22.42  675.78  108.12  4.90 
125 x 125  8 37.44  29.39  858.19  137.31  4.79 
150 x 150  3 17.64  13.85  635.57  84.74  6.00 
150 x 150  4 23.36  18.34  830.53  110.74  5.96 
150 x 150  5 29.00  22.76  1017.42  135.66  5.92 
150 x 150  6 34.56  27.13  196.47  159.53  5.88 
150 x 150  8 45.44  35.67  1531.93  204.26  5.81 
175 x 175  4 27.36  21.48  1334.12  152.47  6.98 
175 x 175  5 34 29.69  1639.08  187.32  6.94 
175 x 175  6 40.56  31.84  1932.45  220.85  6.90 
175 x 175  8 53.44  41.95  2489.68  284.53  6.83 
200 x 200  4 31.36  24.62  2008.71  200.80  8.00 
200 x 200  6 46.46  36.55  2923.34  292.35  7.92 
200 x 200  8 61.44  48.23  3781.43  378.14  7.85  
250 x 250  4 39.36  30.90  3970.90  317.67  10.04  
KS 104:2017 
© KEBS 2015 — All rights reserved  
THIS IS A DRAFT JAN 2017  7 Size 
B X D  
mm Thickness  
t 
mm A 
 
cm2 Mass  
w 
kg/m  Axis  X - X and Y – Y 
Ix = Iy 
cm4 Zx = Z y 
cm3 rx = ry 
cm 
250 x 250  5 49.00  38.47  4904.08  392.33  10.00  
250 x 250  6 58.56  45.97  5814.23  465.14  9.96  
250 x 250 8 77.44  60.79  7566.92  605.35  9.89  
 
 
Table 6 — Dimensions and properties for cold rolled rectangular hollow sections  
 
DIMENSIONS  
B X D  
mm t 
mm A 
cm2 MASS  
w 
kg/m  AXIS X - X AXIS Y - Y 
Ixcm4 Zx cm3 rx cm Iy cm4
 Zy cm3 ry cm 
30 x 10  1 0.76  0.60  0.13  0.26  0.41  0.79  0.52  1.02  
30 x 10  1.2 0.90  0.71  0.15  0.30  0.41  0.92  0.61  1.01  
30 x 10  1.5 1.11  0.87  0.17  0.35  0.39  1.10  0.73  1.00  
30 x 20  1 0.96  0.75  0.64  0.64  0.82  1.21  0.80  1.12  
30 x 20  1.2 1.14  0.90  0.75  0.75  0.81  1.42  0.94  1.11  
30 x 20  1.5 1.41  1.11  0.89  0.89  0.80  1.71  1.14  1.10  
40 x 10  1 0.96  0.75  0.17  0.34  0.42  1.68  0.84  1.32  
40 x 10  1.2 1.14 0.90 0.19 0.38 0.41 1.96 0.98 1.31 
40 x 10  1.5 1.41 1.11 0.22 0.45 0.40 2.37 1.18 1.30 
40 x 10  2 1.83 1.44 0.26 0.52 0.38 3.00 1.50 1.28 
40 x 20  1 1.16  0.91  0.82  0.82  0.84  2.44  1.22  1.45  
40 x 20  1.2 1.37 1.08 0.95 0.95 0.83 2.87 1.43 1.44 
40 x 20  1.5 1.70 1.34 1.15 1.15 0.82 3.49 1.74 1.43 
40 x 20  2 2.24 1.76 1.44 1.43 0.80 4.44 2.22 1.41 
40 x 20  3 3.23 2.54 1.88 1.88 0.76 6.08 3.04 1.37 
KS 104:2017 
                 © KEBS 2015 —  All rights reserved  8 40 x 25 1 1.26  0.99  1.36  1.08  1.04  2.82  1.41  1.50  
40 x 25  1.2 1.50 1.18 1.59 1.27 1.03 3.32 1.66 1.49 
40 x 25  1.5 1.85 1.46 1.92 1.53 1.02 4.04 2.02 1.48 
40 x 25  2 2.43 1.91 2.43 1.94 1.00 5.16 2.58 1.46 
40 x 25  3 3.54 2.78 3.26 2.60 0.96 7.11 3.55 1.42 
50 x 10  1 1.16  0.91  0.21  0.42  0.43  3.04  1.22  1.62  
50 x 10  1.2 1.37 1.08 0.24 0.48 0.42 3.58 1.43 1.61 
50 x 10  1.5 1.70 1.34 0.28 0.56 0.41 4.36 1.74 1.60 
50 x 10  2 2.24 1.76 0.33 0.66 0.38 5.54 2.21 1.58 
50 x 25  1 1.46  1.15  1.64  1.31  1.06  4.84  1.94  1.82  
50 x 25  1.2 1.74 1.37 1.93 1.54 1.05 5.72 2.28 1.81 
50 x 25  1.5 2.15 1.69 2.34 1.87 1.04 7.00 2.80 1.80 
50 x 25  2 2.84 2.23 2.96 2.36 1.02 9.00 3.60 1.78 
50 x 25  3 4.14 3.25 3.99 3.19 0.98 12.55  5.02 1.74 
 
 
Table 6 — Dimensions and properties for cold rolled rectangular hollow sections  (Contd)  
 
Dimensions  
B X D  
mm  
t 
m
m A 
 
cm2 Mass  
w 
kg/m  Axis X - X Axis  Y - Y 
Ix cm4 Zx cm3 rx cm Iy cm4 Zy  cm3 ry  cm 
60 x 40  1.2 2.34 1.84 6.48 3.24 1.66 12.12  4.04 2.27 
60 x 40  1.5 2.90 2.28 7.93 3.96 1.65 14.89  4.96 2.26 
60 x 40  2 3.83 3.01 10.22  5.11 1.63 19.31  6.43 2.24 
60 x 40  3 5.64 4.43 14.31  7.10 1.59 27.38  9.12 2.21 
60 x 40  4 7.36 5.78 17.80  8.90 1.57 34.50  11.50  2.16 
75 x 50  2 4.84 7.33 20.53  8.21 2.06 38.58  10.29  2.83 
75 x 50  3 7.14 5.60 29.14  11.66  2.02 55.33  14.75  2.78 
75 x 50  4 9.36 7.34 36.76  14.70  1.98 70.51  18.80  2.74 
75 x 50  5 11.50  9.03 43.46  17.38  1.94 84.24  22.46  2.71 
80 x 40  2 4.63 3.64 13.11  6.55 1.68 38.97  9.47 2.90 
80 x 40  3 6.84 5.37 18.42  9.21 1.64 55.85  13.96  2.86 
80 x 40 4 8.98 7.08 23.00  11.50  1.60 71.13  17.78  2.82 
100 x 50  2.5 7.25 5.69 32.02  12.81  2.10 95.15  19.03  3.62 
100 x 50  3 8.63 6.78 37.43  14.97  2.08 112.11  22.42  3.60 
100 x 50  4 11.36  8.92 47.36  18.94  2.04 144.12  28.82  3.56 
100 x 50  5 14.00  11.00  56.17  22.47  2.00 173.67  34.73  3.52 
100 x 50  6 16.56  13.00  63.93  25.57  1.96 200.87  40.17  3.48 
KS 104:2017 
© KEBS 2015 — All rights reserved  
THIS IS A DRAFT JAN 2017  9 Dimensions  
B X D  
mm  
t 
m
m A 
 
cm2 Mass  
w 
kg/m  Axis X - X Axis  Y - Y 
Ix cm4 Zx cm3 rx cm Iy cm4 Zy  cm3 ry  cm 
120 x 60  3 10.44  8.20  66.41  22.14  2.52  197.31  32.88  4.35  
120 x 60  4 13.76  10.80  84.77  28.26  2.48  255.20  42.53  4.31  
125 x 75  3 11.64  9.14 113.68  30.32  3.13 251.74  40.28  4.65 
125 x 75  4 15.36  12.06  146.21  38.99  3.09 326.47  52.23  4.61 
125 x 75  5 19.00  14.92  176.27  47.01  3.05 396.90  63.50  4.57 
125 x 75  6 22.56  17.71  203.99  54.40  3.01  463.18  74.11  4.53  
150 x 50  3 11.64  9.14 54.02  21.60  2.16 311.38  41.51  5.17 
150 x 50 4 15.36  12.06  68.57  27.42  2.12 404.09  53.87  5.13 
150 x 50  5 19.00  14.92  81.58  32.63  2.07  491.58  65.54  5.09  
150 x 50  6 22.56  17.71  93.15  37.26  2.03  574.03  76.54  5.04  
150 x 75  3.0 13.14  10.31  133.13  35.50  3.18 392.43  52.32  5.46 
150 x 75  4.0 17.36  13.63  171.44  45.72  3.14 510.71  68.09  5.42 
150 x 75  5.0 21.50  16.88  206.95  55.19  3.10 623.04  83.07  5.38 
150 x 75  6.0 25.56  20.06  239.79  63.94  3.06 729.64  97.28  5.34 
150 x 100  3.0 14.64  14.49  253.30  50.66  4.16 473.48  63.13  5.69 
150 x 100  4.0 19.36  15.20  328.55  65.71  4.12 617.31  82.31  5.65 
150 x 100  5.0 24.00  18.84  399.50  79.90  4.08 754.50  100.60  5.61 
150 x 100  6.0 28.56  28.56  466.31  93.26  4.04 885.25  118.03  5.57 
150 x 100  8.0 
37.44  29.39  588.15  117.6
3 3.96  1128.2
3 150.43  5.49  
200 x 50  3.0 14.63  11.48  70.62  28.25  2.20 656.16  65.62  6.69 
200 x 50  4.0 19.36  15.20  328.55  35.92  2.15 856.07  85.61  6.65 
200 x 50  6.0 
28.56  22.42  122.37  48.95  2.07  1229.1
9 122.92  6.56  
200 x 50  8.0 
37.44  29.39  148.07  59.23  1.99  1568.3
1 156.83  6.47  
200 x 100  3.0 17.64  13.85  323.89  64.78  4.28  947.25  94.72  7.33  
200 x 100  4.0 23.36  18.33  420.77  84.15  4.24 1240.2
9 124.63  7.29 
200 x 100  5.0 
29.00  22.77  512.42  102.4
8 4.20  1522.4
2 152.24  7.25  
200 x 100  6.0 35.56  27.13  599.03  119.8
05 4.16 1793.9
1 179.39  7.14 
200 x 100  8.0 45.44  36.93  757.85  151.5
7 4.09 2306.1
0 230.60  7.00 
200 x 150  4.0 27.36  21.48  1043.7
3 143.3
7 6.17 1624.4
9 216.59  7.70 
200 x 15 0 5.0 34.00  26.69  1280.3 170.76.14  1997.8199.78  7.67  KS 104:2017 
                 © KEBS 2015 —  All rights reserved  10 Dimensions  
B X D  
mm  
t 
m
m A 
 
cm2 Mass  
w 
kg/m  Axis X - X Axis  Y - Y 
Ix cm4 Zx cm3 rx cm Iy cm4 Zy  cm3 ry  cm 
3 1 3 
250 x 150  6.0 
40.56  31.84  1507.6
9 201.0
2 6.10  2358.6
3 235.86  7.63  
250 x 150  8.0 
53.44  41.95  1935.6
4 258.0
9 6.02  3043.7
2 304.37  7.55  
300 x 100  4.0 
31.36  24.62  605.19  121.0
4 4.39  3412.2
3 227.48  10.43  
300 x 100  6.0 
46.56  36.55  864.47  172.8
9 4.31  4982.2
3 332.15  10.34  
300 x 100  8.0 
61.44  48.23  1097.2
7 219.4
5 4.23  6465.5
9 431.04  10.26  
300 x 200  4.0 
39.36  30.90  2777.1
4 277.7
1 8.40  5164.6
6 344.31  11.45  
300 x 200  6.0 
58.56  45.97  4052.7
9 405.2
8 8.32  7575.6
7 505.04  11.37  
300 x 200  8.0 
77.44  60.79  5256.8
4 525.6
8 8.24  9877.0
0 658.47  11.29  
350 x 150  4.0 
39.36  30.90  1683.3
8 224.4
5 6.54  6258.4
2 357.62  12.61  
350 x 150  6.0 
58.56  45.97  2441.3
5 325.5
1 6.46  9187.1
1 524.98  12.53  
350 x 150  8.0 
77.44  60.79  3146.7
6 419.5
7 6.37  11987.
08 684.98  12.44  
400 x 100  6.0 
58.56  45.97  1129.9
1 225.9
8 4.39  10498.
55 524.93  13.39  
400 x 100  8.0 
77.44  60.79  1436.6
8 287.3
4 4.31  13697.
16 684.86  13.30  
 
 
 
 
 
 
 KS 104:2017 
© KEBS 2015 — All rights reserved  
THIS IS A DRAFT JAN 2017  11  
 
 
Table 7 — Dimensions and properties for cold rolled plain channels  
 
Size 
B X D  
 
mm Thick  
Ness  
t 
mm Area  
A 
 
cm2 Mass  
w 
 
kg/m  P 
 
 
Cm Axis Y - Y  
Axis X - X 
 
 Iy cm4 Zy cm3 ry  cm Iy cm4 Zy cm3 rx cm 
50 x 25 3 2.70 2.12 0.77 1.56 0.90 0.77 9.45 3.78 1.89 
50 x 25  3 2.70 2.12 0.77 1.56 0.90 0.77 9.45 3.78 1.89 
60 x 40  3 3.90 3.06 1.30 6.33 2.34 1.27 22.05  7.35 2.38 
60 x 40  4 5.07 3.98 1.36 7.99 3.02 1.26 27.32  9.10 2.34 
75 x 40  2          
75 x 40  3 4.34 4.41 1.13 39.33  10.49  3.01 7.02 2.45 1.27 
75 x 40  4 5.64 4.43 1.12 50.40  13.44  2.99 7.74 2.69 1.17 
100 x 50  2 3.92  3.08   62.77  12.55  4.00  9.82  3.93  1.58  
100 x 50  3 5.70 4.47 1.40 14.05  3.90 1.57 87.30  17.46  3.91 
100 x 50  4 7.42 5.82 1.45 18.07  5.08 1.56 111.12  22.21  3.86 
100 x 50  6 10.81  8.49 1.56 24.74  7.19 1.52 152.58  30.51  3.75 
120 x 50  2 4.32  3.39   95.64  15.94  4.71  10.36  4.14  1.55  
120 x 50  3 6.42  5.04   139.73  23.29  4.67  15.10  6.04  1.53  
120 x 50  4 8.48  6.66   181.44  30.24  4.63  19.57  7.83  1.52  
120 x 50  6 12.01  9.43 1.44 26.49  7.44 1.48 238.17  39.69  4.45 
125 x 65  4 9.88  7.76   243.79  39.01  4.97  41.28  12.70  2.04  
125 x 65  6 14.04  11.02  1.86 348.52  55.76  4.98 59.34  12.79  2.06 
150 x 50  6 13.81  10.84  1.29 28.53  7.69 1.43 412.33  54.97  5.46 
150 x 70 4 10.90  8.61 1.88 53.03  10.35  2.19 376.90  50.25  5.85 
150 x 70  6 16.21  12.72  1.99 74.71  14.91  2.15 536.82  71.57  5.75 
150 x 75  4 11.68  9.17   415.26  55.37  5.96  64.97  17.33  2.36  
150 x 75  6 16.74  13.14  2.07 598.23  79.76  5.98 93.78  17.27  2.37 
KS 104:2017 
                 © KEBS 2015 —  All rights reserved  12 Size 
B X D  
 
mm Thick  
Ness  
t 
mm Area  
A 
 
cm2 Mass  
w 
 
kg/m  P 
 
 
Cm Axis Y - Y  
Axis X - X 
 
200 x 75  4 13.68  10.74   812.25  81.22  7.71  70.68  18.85  2.27  
200 x 75  5 16.63  13.03  1.72 1006.25  100.63  7.78 99.85  17.28  2.45 
200 x 75  6 19.74  15.05  1.80 1179.31  117.93  7.73 102.13  17.92  2.27 
200 x 100  6 22.64  17.77  2.79 224.98  31.20  3.15 1393.93  139.39  7.84 
 
 
 
  KS 104:2017 
© KEBS 2015 — All rights reserved  
THIS IS A DRAFT JAN 2017  13 ZED PURLINS TO BE ADDED  
 
  KS 104:2017 
                 © KEBS 2015 —  All rights reserved  14  
 
 
 
 
Table 11 — Dimensions and properties for cold rolled circular tubes  
 
Dimensions  
D 
mm t 
 
mm A 
 
cm2 Mass  
w 
kg/m  I 
 
cm4 Z 
 
cm3 r 
 
cm 
16 1.0 0.47  0.37  0.13  0.17  0.53  
16 1.2 0.56 0.44 0.15 0.19 0.52 
16 1.5 0.68 0.55 0.18 0.23 0.52 
16 2 0.88 0.71 0.22 0.27 0.50 
20 1.0      
20 1.2 0.71 0.56 0.31 0.31 0.67 
20 1.5 0.87 0.69 0.38 0.38 0.66 
20 2 1.13 0.90 0.46 0.46 0.64 
22 1.0 0.66  0.52  0.36  0.33  0.74  
22 1.2 0.78 0.62 0.43 0.39 0.74 
22 1.5 0.97 0.78 0.51 0.46 0.73 
22 2 1.26 0.99 0.63 0.58 0.71 
25 1.0 0.75  0.59  0.54  0.44  0.85  
25 1.2 0.89 0.70 0.64 0.51 0.84 
25 1.5 1.10 0.87 0.77 0.61 0.83 
25 2 1.43 1.13 0.96 0.77 0.82 
27 1.0      
27 1.2 0.95 0.75 0.79 0.59 0.91 
27 1.5 1.18 0.93 0.95 0.72 0.90 
27 2 1.55 1.22 1.19 0.90 0.88 
32 1.0 0.97  0.76  1.17  0.73  1.10  
32 1.2 1.15 0.91 1.37 0.86 1.09 
32 1.5 1.43 1.13 1.67 1.04 1.08 
32 2 1.88 1.48 2.13 1.33 1.05 
32 3 2.72 2.14 2.90 1.81 1.03 
38 1.0 1.16  0.91  1.99  1.05  1.31  
38 1.2 1.42 1.12 2.48 1.28 1.32 
38 1.5 1.75 1.38 3.03 1.57 1.31 
38 2 2.31 1.82 3.89 2.01 1.30 
KS 104:2017 
© KEBS 2015 — All rights reserved  
THIS IS A DRAFT JAN 2017  15 38 3 3.37 2.65 5.39 2.79 1.26 
 
 
 
 
 
 
 
Table 11 — Dimensions and properties for cold rolled circular tubes  
(Contd)  
 
Dimensions  
D 
mm t 
 
mm A 
 
cm2 Mass  
w 
kg/m  I  
 
cm4 Z  
 
cm3 r  
 
cm 
42 1.0 1.29  1.01  2.71  1.29  1.45  
42 1.2 1.54 1.21 3.26 1.54 1.47 
42 1.5 1.96 1.54 3.99 1.89 1.42 
42 2 2.52 1.98 5.13 2.43 1.42 
48 1.0 1.48  1.16  4.08  1.70  1.66  
48 1.2 1.77 1.39 4.84 2.02 1.66 
48 1.5 2.19 1.72 5.93 2.47 1.65 
48 2 2.89 2.27 7.66 3.19 1.63 
50 1.2 1.84 1.45 5.48 2.19 1.73 
50 1.5 2.29 1.80 6.73 2.69 1.72 
50 2 3.02 2.37 8.70 3.48 1.70 
60 1.2 2.21 1.74 9.58 3.19 2.08 
60 1.5 2.75 2.16 11.80  3.93 2.07 
60 2 3.64 2.86 15.34  5.11 2.06 
76 1.2 2.82  2.21  19.73  5.19  2.64  
76 1.5 3.51  2.76  24.38  6.41  2.63  
76 2.0 4.65  3.65  31.86  8.38  2.62  
89 2 5.46 4.29 51.75  11.63  3.08 
114 2 7.04  5.53  110.42  19.37  3.96  
114 3 10.47  8.22  161.30  28.30  3.93  
KS 104:2017 
                 © KEBS 2015 —  All rights reserved  16 165 3 15.27  11.99  501.24  60.76  5.73  
165 4 20.24  15.89  656.21  79.54  5.69  
 
 
 
 
 
 
Table 12 — Dimensions and properties of ZED  purlins  
 
Dimensions  A 
 
 Mass  
w 
 Ix 
 
 Zx 
 
 X - X axis  Y - Y axis  Imperial inch equivalents  
B 
mm D 
mm C 
mm t 
mm  
cm2  
kg/m   
cm4  
cm3 rx 
cm Iy 
cm4 Zy 
cm3 ry 
cm D B Gauge  
50.8 76 19 1.5         3” 2” 16 
50.8 76 19 2.0         3” 2” 16 
50.8 95.25  20 2.0 4.52 3.52 63.94  13.42  3.76 33.87  6.80 2.73 33/4” 2” 14 
50.8 101.6  20 2.0 4.26 3.34 70.18  13.81  4.05 31.45  4.98 2.41 4” 2” 14 
50.8 114.6  20 2.0 4.90 3.85 98.24  17.19  4.47 33.87  6.80 2.62 41/2” 2” 14 
50.8 127.0  20 2.0 5.16 4.05 125.99  19.84  4.94 33.87  6.80 2.56 5” 2” 14 
50.8 139.7  20 2.0 5.40 4.24 157.90  22.60  5.40 33.87  6.80 2.50 51/2” 2” 14 
50.8 152.4  20 2.0 5.66 4.44 194.14  25.47  5.85 33.87  6.80 2.44 6” 2” 14 
50.8 165.1  20 2.0 5.92 4.65 234.96  28.46  6.30 33.87  6.80 2.39 61/2” 2” 14 
50.8 165.1  20 2.5 7.25 5.94 278.7  33.78  6.43 33.87  7.59 2.33 61/2” 2” 12 
63.5 165.1  20 2.5 9.91 6.14 301.50  36.54  6.50 36.79  10.91  2.31 61/2” 21/2” 12 
50.8 177.8  20 2.5 7.59 5.90 340.73  38.32  6.72 37.63  7.59 2.23 7” 2” 12 
63.5 177.8  20 2.5 8.23 6.40 389.51  43.81  6.90 67.91  10.91  2.88 7” 2” 12 
76.2 177.8  20 3.0 10.42  8.17 516.52  58.10  7.02 128.58  17.21  3.50 7” 3” 10 
50.8 203.0  20 2.0         8” 2” 14 
76.2 203.0  20 2.5         8” 3” 12 
76.2 203.0  20 3.0         8” 3” 10 
KS 104:2017 
© KEBS 2015 — All rights reserved  
THIS IS A DRAFT JAN 2017  17 76.2 254.0  20 2.5         10” 3” 12 
76.2 254.0  20 3.0 13.12  10.30  123.60  97.38  9.70 148.99  19.95  3.37 10” 3” 10 
63.5 304.0  20 2.5         12” 21/2” 12 
76.2 304.0  20 2.5          3” 12 
63.5 304.0  20 3.0          21/2” 10 
76.2 304.0  20 3.0          3” 10 
 
 
 
 
Table 13 — Dimensions and properties for cold rolled  
mono rail sections  
 
Dimensions  t 
 
mm A 
 
cm2 Mass  
w 
kg/m   X - X axis       Y - Y axis  
B D C C1 E Ix 
cm4 Zx 
cm3 Rx 
cm Iy 
cm Zy 
cm3 ry 
cm 
57 67 15 10 13.7 3 6.27 4.92 34.34  9.19 2.34 31.63  11.10  2.25 
42 54 12.5 8 8 2.5 3.97 3.12 14.35  4.64 1.90 11.11  5.29 1.67 
33 34 9.5 6.5 10.5 2 2.22 1.74 3.22 1.65 1.20 3.67 2.22 1.28 
 
 
 
  
 E   
      
  F 
 C  D 
   
    
    
 B     
    
    
KS 104:2017 
                 © KEBS 2015 —  All rights reserved  18     
    
    
    
    
  A   
 
 
 
 
Table 14—Dimensions and properties for cold rolled  
boutille door section  
 
Dimensions  t 
 
mm A 
 
cm2 Mass  
w 
kg/m   X - X axis       Y - Y axis 
A B C D E Ix 
cm4 Zx 
cm3 Rx 
cm Iy 
cm Zy 
cm3 ry 
cm 
33 64 30 15 2 1.0 6.27 4.92 34.34  9.19 2.34 31.63  11.10  2.25 
42 54 12.5 8 8 2.5 3.97 3.12 14.35  4.64 1.90 11.11  5.29 1.67 
33 34 9.5 6.5 10.5 2 2.22 1.74 3.22 1.65 1.20 3.67 2.22 1.28 
 
 
  
 A   B     
              
G             
              
            C 
F             
              
              
  E       D   
    T: Thickness  
     
Table 15 — Dimensions and properties for cold rolled  
 half H door section  
 
SR. A B C D E F G T Mass 
(Kg/M)  
1 48 52 42 12 12 29 13 1.00 1.64 
2 48 52 42 12 12 29 13 1.20 1.97 
3 48 52 42 12 12 29 13 1.50 2.46 
 
   
  
 A   B   C     
                    
                  D                   
KS 104:2017 
© KEBS 2015 — All rights reserved  
THIS IS A DRAFT JAN 2017  19                     
                  E 
                    
                    
    G           F   
     T: Thickness  
 
   Table 16 — Dimensions and properties for cold rolled  
full H door section  
 
SR. A B C D E F G T Mass 
(Kg/M)  
1 48 54 48 13 30 11 11 1.00 1.88 
2 48 54 48 13 30 11 11 1.20 2.26 
3 48 54 48 13 30 11 11 1.50 2.83 
4 48 54 43 13 30 11 11 1.00 1.87 
5 48 54 43 13 30 11 11 1.20 2.24 
6 48 54 43 13 30 11 11 1.50 2.80 
 
 
 
 A 
  
      
      
          B 
      
      
      
 C 
       D 
 
  T:Thickness  
   
Table 17— Dimensions and properties for cold rolled  
C door section  
 
SR. Size A B C D T Mass (Kg/M)  
1 150 X 30  150 30 13 13 1.0 1.72 
1.2 2.07 
1.5 2.43 
2 100 x 25  100 25 20 20 1.2 1.50 
3 75 x 50  75  50 20 20 2.0 3.03 
4 100 x 50  100 50 20 20 2.0 3.42 
5 125 x 50  125 50 20 20 2.0 3.82 
6 150 x 50 150 50 20 20 2.0 4.25 
7 175 x 50  175 50 20 20 2.0 4.60 
8 125 x 75  125 75 20 20 2.0 4.43 
KS 104:2017 
                 © KEBS 2015 —  All rights reserved  20 9 150 x 75  150 75 20 20 2.0 4.81 
        
  
 
 
5)  
 
 
DIMENSIONS AND PROPERTIES FOR UNEQUAL  H DOOR SECTION (SIZE -52X44X34X12MM)  
              
 A B C D E F G H I T (MM)  KG/M  
  
 34 52 44 33 33 12 12 13 13 1 1.73  
  
 34 52 44 33 33 12 12 13 13 1.12  1.93  
  
 34 52 44 33 33 12 12 13 13 1.2 2.03  
  
 34 52 44 33 33 12 12 13 13 1.4 2.42  
  
 34 52 44 33 33 12 12 13 13 1.5 2.59  
  
              
 
   
   
   
   
   
   
   
   
   
   
   
   
              
              
              
              
              
 DIMENSIONS AND PROPERTIES FOR PROFILE OMEGA  
      
              
  A B C D E T (MM)       
 
  150 48 54 48 13 1.2      
 
  150 48 54 48 13 1.5      
 
C 
 A 
D 
B 
G 
F 
H 
E KS 104:2017 
© KEBS 2015 — All rights reserved  
THIS IS A DRAFT JAN 2017  21   150 48 54 48 13 2.0      
 
  
     
A 
B 
 C 
 D 
E 
T KS 104:2017 
                 © KEBS 2015 —  All rights reserved  22 
 Field  Code  ChangedKS 104:2017 
© KEBS 2015 — All rights reserved  
THIS IS A DRAFT JAN 2017  23  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 KS 104:2017 
                 © KEBS 2015 —  All rights reserved  24 
 KS 104:2017 
© KEBS 2015 — All rights reserved  
THIS IS A DRAFT JAN 2017  25  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 KS 104:2017 
                 © KEBS 2015 —  All rights reserved  26