RSJ Calcs

[securespark]

This may be better in building but here goes...

Could 5.03m be spanned with one run?

The steels would be supporting a once-external cavity wall itself supporting joists and a pitched roof above.

It would be slightly longer if the steels were supported by the cavity wall either side, instead of resting on piers.

Or would I need a pier in the middle of the span?

 

[securespark]

I have a nasty feeling 5m is too long...

 

[freddiemercurystwin]

This may be better in building but here goes...

Why not try mumsnet? The rest of your threads would be more appropriate posted there too come to think of it.

 

[securespark]

I take it your knowledge of steels and their span is like mine, then?

 

[^woody^]

I've noticed that there are some beams spanning much more than 5m down at my local IKEA

 

[EFLImpudence]

Are they chipboard?

 

[securespark]

I dunno, I seem to remember in a domestic dwelling, the span is limited.

 

[Ian H]

Mine came today, it's spanning 5.04mtrs:

 

[securespark]

That's an incy bit too deep for my room...

 

[IWalkLikeHimaMartian]

View attachment 125508

That was to support **** end's and his brafriend's argument. It is the best they could get. No facts, no figures, no data, no sensible deductions, just heavyweight comments and hope for the best.

 

[DaveHerns]

Maybe you need a structural engineer.

 

[securespark]

Yeah..... I think you're right.

 

[Paulg31]

You can span in excess of 20 m with a UB dependent on load but I think for you it'd be be limited to what your can beam you can lift safely and what depth you've got available for a beam.

 

[securespark]

I guess it would be two steels each supporting a leaf. When you say depth you mean we need enough headroom to allow for the depth of the beam and a human to pass underneath.

 

[333rocky333]

have a look at some local shopfronts they often seem more than 5 metres often with accommodation above