Tony Bryer wrote:

It is unfair to compare the stiffness of one TJI beam against a
joist, TJI beams are designed with a complete homogenous floor
system ... i.e. Silent Floor


And I have absolutely no problem with them being used for such. I
am totally unconvinced that a single TJI is a suitable substitute
for a steel beam supporting a masonry wall over.

Given that they are likely to be deeper than a standard joist (let alone
SHS steel), have less lateral stability, and no doubt cost more, it
seems hard to see the advantage in most domestic house construction
projects. Which does make you wonder why some fool keeps sugesting them!

--
Cheers,

John.

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