What happens next?

How to install a drawer slide in a lipped cabinet 
First of all, you need to empty out the cabinet (the top shelf) and measure it. 
Now measure the cabinet lip from hinge. 
Make sure that you measure: the cabinet from the widest part of the hinge, inside of the cabinet, all corners of the cabinet, cabinet height from lip, if you need to install double stacked drawer system.

 [I] Measure the cabinet from waistband corner to hinge. Measure including the cabinet width from side width inwards. [II] Measure the drawers that you need to install. Ensure slide drawer does not become more than your hinge clearance measurement. [III] Get a flexible square zip lock door to clean and eliminate stains. Once you have done this a step is up. [IV] Once you have the measurement, align the marked marking on the body of drawer lip. Measure the door hinges on the door panel back of the cabinet.
[II]