Building a staicase

To create a staircase for the piano falling down scene, I started with one single box, and then duplicated this. Using the snaps toggle mode, I was able to create the steps very quickly without hassle. After selecting the snaps option, I held the shift key and dragged the duplicate box to the new position it then portended me asking whether I wanted to create more than one, which I adjusted to my number of steps. This then created my steps.
To add a Bannister, I created a pole out of a cylinder, and duplicated it using the process above.
I then created a rail out of another cylinder.
The staircase creation process is shown below: