The units are sturdy and well made, but be aware that you need to allow for an additional 1/4" in depth measurement if you want your cupboard door to close tightly. Also, don't use a 3/16 drill bit for the mounting screw pilot holes as the booklet instructs. That's too big. I had to fill the holes with wood glue and a 1/8" dowel and re-drill with a 11/64 bit. Also, I was shorted 2 acorn bolts. Very satisfied with the quality and functionality of the sliding drawer units themselves, however.