Lintel help needed!

Knackeredad · 2026-08-19T08:32:48+0100

I'm hoping someone out there can help? I'm trying desperately to identify a black steel lintel used in my house (Circa. 1989) as I need to satisfy my Structural Eng.
I believe it's a BAT building product type as there's a similar one used in my garage. The profile is attached below:
Before anyone asks, I've emailed Catnic, IG, Keystone etc but no-one has replied with any positive news.
I'm holding out for Birtley Group as I believe they took control of Expamet (who in-turn took control of BAT).
It has a perforated underside with bricks to one face and blocks to the other (85mm side).
Any news or original loading info would be gretly appreciated!!

Wayners · 2026-08-19T09:26:05+0100

Phone them.
Companies have technical helplines so that's your best bet

freddiemercurystwin · 2026-08-19T09:37:26+0100

I doubt you'll get anywhere identifying it, you're talking about 40 years ago. Besides digital copies of lintel specs didn't really exist back then, certainly not for Joe Public it was all physical manuals so that data will have all been lost to time. The guys manning the tech helplines won't have any time for looking for ye oldie manuals stored in the depths of their basements.

You might get a structural engineer to prove it's adequate if he's prepared to do some number crunching but seeing as you seem to be saying it's your SE asking that seems unlikely.

stevie888 · 2026-08-19T10:01:53+0100

Seems to me you're doing the SE's work for him?

jj4091 · 2026-08-19T10:41:35+0100

Catnic do one with a very similar profile and dimensions. Would the loading figures for that not satisfy your S.E.

Knackeredad · 2026-08-19T10:43:20+0100

Wayners said:
Phone them.
Companies have technical helplines so that's your best bet

Thanks Wayne but already tried and as I stated, the company went into liquidation.

Knackeredad · 2026-08-19T10:43:52+0100

stevie888 said:
Seems to me you're doing the SE's work for him?

Yup! but you know what they're like.

freddiemercurystwin · 2026-08-19T13:04:30+0100

You'll have to pay him to determine the strength of the lintel , why should he do it for free?

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Lintel help needed!

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