I tried once to buildings. A hall for ball round bales seemed suitable as me.
In this round-ball bearing can store bales in a small space. The klu thing is that you can go back to the mixer and the front mounted round bale can roll by hand into the mixer.
The height was
The idea Währe on one side on the other side bale silage grass bales. Go to the mixer and make a front loader without dan mixed ration.