152x152x51kg RSJ, Is there such a size???????????

[Wonfor]

Hi,

I am about to embark on my own loft conversion but because of the minimal head height my architect has specified a 152x152x51kg RSJ for the ridge beam. I am having difficulty finding this beam as all the stockholders say the largest 152 beam is 37kg.

Does anyone have any idea whether this exists and where I can get one?

Any help would be greatly appreciated. Thanks.

Tony.

 

[Blagard]

I think your Architect has err'd. Even if there were such a size (I can't find it either) he needs to specify something you can get - (In the trade it's called "buildability")

Ask him to specify a stock section that can be fitted in the space and satisfies the loads.

 

[Wonfor]

Thanks for such a quick reply.

I phoned Enfield Building Control and they have said they do exist but they are a new size and are probably hard to get hold of. They also said he was going overboard with the size as a 37kg would be fine. Its only spanning 5m. Lets face it, its a ridge beam for a dormer so there isn't that much weight going on it.

Thanks

 

[jeds]

It's a standard section from the Corus 'Advance' range. My question would be why so heavy though - and why not use a beam (rather than a column) which would be more efficient? Obviously there may be reasons but it does seem a heavy beam for a fairly lightweight application.

 

[Deluks]

Ha! Architect, not an engineer, he's overspecced to cover his a**e!

(My Monopoly fiver says!)