Floors are not usually made from 2×6 solid boards. But I never said I was building a usual house ?

As the cedar floor joists are some distance apart, a standard floorboard would not be strong enough. So I ordered pine 2×6 boards and picked them up 

 
Although I couldn’t finish the floor, this is what it will look like; 

 
On this floor there will be 2 windows looking out to the east