I am doing up my really tiny apartment, in which we have had to make many compromises to deal with limited space. One of these is a shoe cupboard which will double up as a door between two rooms. I've attached a picture to make it easy to understand .
The shoe cupboard will be around 6 feet tall, 2.5 feet broad, and 1-1.5 feet deep. My decorator wants to put rollers under the cupboard, to support the weight. I would prefer not to use rollers, as I've noticed they tend to pick up dirt and hair over time and get stuck, make scratchy sounds, mark the floor etc. I think the ideal situation would be if the shoe cupboard could be supported solely on hinges.
So the question: What kind of hinges would do the best duty for a setup like this, where the load could be in the region of 40-70 lbs? Piano? Pivot? Something else?