I was crestfallen when it came time to install this and the instruction booklet was 32 pages long...I was thinking what I may have saved in getting these organizers would be lost if I have to hire someone to install them...So, I was bound and determined to install them with my other half's help.  It took one day of planning and reading; measuring and marking. Then, two days to install for us, the novices...The second one did go in easier than the first and now I am confident that we could install more if we wanted/had them. We did use a table saw to cut and bought a stud finder (a level comes with the kit. I am extremely satisfy with the results!