I would like to carry out a similar project as the one described in this thread(Can I use bolts to attach a bed to the walls of my room?).
I have seen several similar projects but they do not seem concerned about the expansion of the 2meter long beams of wood against the wall.
I have considered leaving an expansion gab at the end of the beam but have not worked out how to hold it securely to the perpendicular beam bolted to the wall.
Would 2meter long support beams not expand in length sufficiently to cause the wall to bend/crack? Can they be securely bolted to the beams bolted to the wall and thus make a solid frame?