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The following quick selection tables provides an
easy reference for selection of appropriate purlins
sizes for roofing.
These tables can be generally used in Malaysia.
However, for optimum designs where secific roofing
and insulation loads will be used, or for any other
applications beyond the scope of normal design
parameters, contact us for free technical advice.
Simple Span (C & Zed Sections)
|
Purlin Spacing (mm) |
1200 |
1500 |
1800 |
2100 |
|
Span (mm) |
|
5000 |
10020 |
10020 |
15016 |
15016 |
|
6000 |
15016 |
15016 |
15016 |
15016 |
|
7000 |
15020 |
20016 |
20016 |
20016 |
|
7500 |
20016 |
20016 |
20020 |
20016 |
|
8000 |
20016 |
20016 |
20016 |
20020 |
|
9000 |
20016 |
20020 |
20025 |
20025 |
|
10000 |
20020 |
20025 |
- |
- |
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Double Span (C & Zed Sections)
|
Purlin Spacing (mm) |
1200 |
1500 |
1800 |
2100 |
|
Span (mm) |
|
3000 |
10016 |
10016 |
10016 |
10016 |
|
4000 |
10016 |
10016 |
10016 |
10016 |
|
5000 |
10016 |
10016 |
10016 |
10020 |
|
6000 |
10020 |
10020 |
15016 |
15016 |
|
7000 |
15016 |
15016 |
15020 |
15020 |
| |
|
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Two Span Lapped (Zed Sections Only)
|
Purlin Spacing (mm) |
1200 |
1500 |
1800 |
2100 |
|
Span (mm) |
|
5000 |
Z10016 |
Z10016 |
Z10016 |
Z10016 |
|
6000 |
Z10016 |
Z10020 |
Z15016 |
Z15016 |
|
7000 |
Z15016 |
Z15016 |
Z15016 |
Z15016 |
|
7500 |
Z15020 |
Z15020 |
Z15020 |
Z20016 |
|
8000 |
Z15020 |
Z15020 |
Z15020 |
Z20016 |
|
9000 |
Z20016 |
Z20016 |
Z20016 |
Z20016 |
|
10000 |
Z20016 |
Z20016 |
Z20020 |
Z20020 |
|
11000 |
Z20020 |
Z20020 |
Z25020 |
Z25025 |
|
12000 |
Z25025 |
Z25025 |
Z25025 |
Z25025 |
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