Raising an RSJ by 10mm

Ian H · 21 Jan 2017

I read a thread on here which said to use a steel spacer between the RSJ and padstone, I've tried to find the thread but can't.

With a 102mm wide beam on a 440mm padstone, would you use a spacer the width of the beam or a bit wider?

Cheers

noseall · 21 Jan 2017

I'd probably thicken the bed under the padder or use some steel shims to pack it up. Marley Eternit fibre cement slates are excellent packers also.

Ian H · 21 Jan 2017

What about a normal slate?

^woody^ · 21 Jan 2017

1990 said:
What about a normal slate?

Or abnormal slate.

Ian H · 21 Jan 2017

^woody^ said:
Or abnormal slate.

That would match the rest of the house!!

I'll have a google of shims

Ian H · 21 Jan 2017

Any good?:

https://www.ebay.co.uk/itm/301340890116

noseall · 21 Jan 2017

Ideally you would want the shims or packers to have the same surface area as the steel bearing. If yours is 100mm square then go for it.

^woody^ · 21 Jan 2017

You don't have a cup full of sand and cement on site then?

Doggit · 21 Jan 2017

How far does the beam sit on the padstone. If it's 8", then you'd want 2 plates instead of just one, otherwise you're doubling the pressure (for instance)

^woody^ · 21 Jan 2017

Doggit said:
How far does the beam sit on the padstone. If it's 8", then you'd want 2 plates instead of just one, otherwise you're doubling the pressure (for instance)

How does that work?

XtraRaptor · 21 Jan 2017

^woody^ said:
How does that work?

Dunno, but it makes sense to me to put shims under the whole of the contact face of the beam.

Doggit · 21 Jan 2017

XtraRaptor said:
but it makes sense to me to put shims under the whole of the contact face of the beam

Thanks Xtra, I think you've put it much better than I did, but I suspect from Woodys response, that I'm still wrong.

Ian H · 21 Jan 2017

The 100x100 plate would do it or I could use a 200x100 if it would spread the weight better, Doggits suggestion does seem to make sense.

I might stick with the 100x100, if I had managed to put it in level in the first place that's what it would be.

Ian H · 21 Jan 2017

^woody^ said:
You don't have a cup full of sand and cement on site then?

I've got some expanding foam

XtraRaptor · 21 Jan 2017

I would try any steel stockholder close to you, they might give you access to their offcut skip for a £5

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Raising an RSJ by 10mm

Doggit

Doggit

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