mount 60 Seconds or nails, or referred, it s`emboite. Once mounted, the construction is solid, even loaded rolls well. And to hide white facade, I have opted for the stickers. flat surface ca glue very well. I do not understand the comments "hard mounting" or "too high cabinet." It`s up to you to set the high, each floor and independent and may be the last! and assembly ... if `c was Lego, we had to write" 3 years and + ":)