All I want is a simple span table, not the detailed engineering.

asked 08 Nov '12, 08:21

JohnM's gravatar image

accept rate: 0%

The span tables can be either in structural steel or cold rollformed purlins. The One Steel answer above is for structural and mainly used in housing apllications. But a very good guide.

Each rollformer of shed purlins have their own span tables including wind loads etc. In some case identical C15012 purlins from BlueScope coil & finish may have different spans.

A site called SteelSelect gives you Stramit, Lysaght, Steeline and Fielders data on their purlins etc - in fact all products they produce. It's a big site but useful in the specifications of each product. Also the shed designers have their own programs to evaluate purlin spans in the shed design.

So to answer the question correctly - there is NO simple span tables for purlins. They vary as to location (Australia), structural design, roof loads, spans (end, double, single etc).


answered 14 Nov '12, 22:03

Dave's gravatar image

Dave ♦
accept rate: 60%

Thanks Dave, Very informative.

(14 Nov '12, 22:27) JohnM

Onesteel has published these details at

Span Table - Onesteel

I will see if I can find some other manufacturers that have done the same.


answered 08 Nov '12, 08:24

russco's gravatar image

russco ♦♦
accept rate: 75%

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Asked: 08 Nov '12, 08:21

Seen: 14,882 times

Last updated: 14 Nov '12, 22:27

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