Very easy to install and especially great to locate them wherever you wish. Got 2 sets of white shelves because white is easy to touch up if you need to, then they are brand new looking once again. I decided to put them in a utility closet so I could place them where I needed to store some things out of the way. What a nice  easy way to store some spray bottles of cleaning or some WD40 that I offen use on surprising squeaks. Touch up stains  touch up paint for my touch up craziness. Didnt have room for a regular shelfing unit, so these are the perfect alternative.  Thank goodness for these floating shelves.