[Fortin's H.T room]

I'm new here and need advise on my stage i built.Why do people put sand on the end of the stage and installation in the center.For my riser do i put installation in between too.I'm going with a 12"riser does it sound right.Thanks.

This is the stage.

A want to build a set of risers,with some lights and buy two more chairs.Any Advise Thanks