Portal thread steel

[steve t]

I got some 180 x90 rsj kicking around. Going to use it to put up a new shed was wondering what span I could go with a portal frame with decent haunches on? Was thinking about 30 foot. Sheltered area very little snow?

 

[steve t]

Thinking 10 foot to eve and 12 degree pitch

 

[addjunkie]

If you look on some of the kit building website, they quote steel sizes…will be a guide.

 

[oilcooled :)]

30 foot be the limit, in an A config with some haunches. At eve and apex

Here’s a useful document

https://assets.gov.ie/static/documents/s101-minimum-specifications-for-the-structure-of-agricultural-buildings-july-2016.pdf