Is it ok, to mount a bunk bed just at the walls?

I want to build something like this: http://ift.tt/24eDM0W

My room is about the same width. I just have concerns on damaging the building because of the induced force on the walls. Maybe I just watched too many "construction side fails" videos on youtube. :)

I live in the ground floor of a 100 year old brick building in Europe, and the wall is at least 30 centimeters wide.

Submitted May 01, 2016 at 01:01PM by estate8143 http://ift.tt/1TmO4kl