Steel Beam on Wall plate

18 Jan 2009
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United Kingdom
We are shortly starting a loft conversion and the plans show a number of Steel UB's (on 15mm steel plates instead of Padstones). The steels are supported on the top of the wall under the hipped roof (hipped on all 4 sides).

Is it OK to support the steels on the specified steel plates on top of the existing wooden wall plates (100x75 approx)- or do I somehow need to remove a 300 mm section of wall plate and replace with engineering brick?

Thanks for any advice
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You can't sit it on the wallplate, as the load will crush it. You need to cut a section out, replace with spreader plate and steel packers up to the required level.
Thanks for the advice - thats what I suspected....

Do we really need to use steel packers or could we build up with engineering brick and put the 300x100x15mm steel spreader plate on top...?
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Yep you can do it that way. You wouldn't actually need the spreader plate then, if you make the eng bricks the same plan area of the plate.

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