All of our units are based on drawers pulling out to give you complete access to your cabinet of containers. You cannot block a drawer or it will not pull out. Think of measuring as finding the largest box that will freely slide in and out of your cabinet.
You will need to measure your cabinet for:
Depth -- From the back of the cabinet to inside the closed cabinet door
Height -- Space between shelves
Width -- Narrowest space between frame and hinges
Please visit the "How-to" pages for detailed instructions.