When talking about toy storage unit, my husband always insists they should be wall mounted to avoid them from falling over onto the kids. Kids tend to get excited and wild sometimes and they won't be aware of their forces. The depth of this unit is wide enough such that you won't actually need to wall mounted it. It had been with us for over a year and it never fall over, not even once! The colour of wood looks nice and blends well with other toy organizers too.