Remove items from the cabinet shelves that you wish to line. Wipe the shelves clean of crumbs and dirt with a wet sponge or paper towel. Dry the cabinets with a paper towel or cloth.
Measure the length and width of the interior cabinet shelving with a tape measure. Mark the dimensions of the shelving on the contact paper or shelf-liner with a pencil point or small slit so you know where to cut.
Cut the contact paper or shelf-liner with scissors. Remove the adhesive backing from the contact paper or liner. Non-adhesive liners do not have this backing.
Line the contact paper or shelf-liner up to the corners of the shelving and lay the corners down flat first. Press the contact paper or liner onto the shelving little by little to create a flat surface without creases.