Deflecto Unbreakable DocuPocket, Wall File Organizer, Letter Size, Smoke, Single Pocket, 14.5" x 3" x 6.5" (63202)

I need a wall pocket that can fit a 17.5" folder inside it. Is the inside width of this pocket 17.5" or is that the outside width?

The Product Dimensions state that they are 18 x 7.4 x 3.2 inches. But the Product Description says 11 7/8w x 3d x 6 1/2h. Which one is correct?

is this item able to hold large note book

can you easily fit a 15 inch laptop in this thing (and even the charger and an extra hard drive)?