Heavy wardrobes in the loft conversion?

pieroabcd

Hi,
in my house the previous owners added a loft conversion in 2018.
Apparently it looks well done (except for the ceiling that is only 2mt high), sturdy at first look. I want to think that it was built soundly, but you never know.

I want to add a wardrobe, but all the models that I've seen weigh 80kg and up, for a surface that is only 0.72 m2. This  makes a pressure of 111kg/m2.
To me it feels like a lot, but I don't know if the pressure is exerted only on the surface on which the cabinet lies or on the whole pavement, that measures 20m2.
The steel beam and the joist that I can see in the eaves seem to be in good condition, but since I don't have any experience with this kind of construction I tend not to trust them.

Also, I can't find lightweight wardrobes, that shouldn't be that hard to  build (after all they don't have to carry any significant weight).

Am I overthinking?

alanobrien

That's a fair weight but not that excessive imo.  If it wasn't built to spec by that i mean floor over ceiling joists (yes it happens) then i would be very cautious.    If it was built to spec with new joists hung from a steel across the support walls then i would not be to concerned.      We had three large wardrobes in our (properly) converted loft. 

grumbler

pieroabcd said:

I want to add a wardrobe, but all the models that I've seen weigh 80kg and up, for a surface that is only 0.72 m2. This  makes a pressure of 111kg/m2.
...

Am I overthinking?

Yes.
A human foot produces 60kPa = 6000 kG/m2

travis-powers

You’re overthinking a conversation done in 2018 built to regs, if it wasn’t it would have flagged up when you purchased will be over engineered