Using "L" bar works great for hanging file folders.

Here are two of the easiest ways to make a cabinet file drawer system for hanging folders. One is by using “L” bar aluminum or U-channel and the other is by purchasing a ready- made rack to use as the support. If you’re fabricating your office cabinetry from scratch, please refer to our article explaining how to figure drawer sizes. If you already have existing office cabinetry and they did not come equipped with the necessary parts that you need, one of these two methods may be just what you’re looking for. Many of the custom cabinet manufacturing companies use the L-bar or U-channel method because it is an economical way to manufacture a quality product that supports a lot of weight. If you’re looking for a quick set up for hanging your Pendaflex folders, it will be faster read article Making a Cabinet File Drawer

Diagram For Drawer Cut Sizes

In this section of our cabinet fabrication measurements, I will explain the diagram showing how to figure the size of a drawer. Sizes will vary depending upon the style of slide that you may be using. This tutorial shows the proper way to figure a drawer size for a side mount style of slide. These figures are universal for full extension and white epoxy coated European drawer slides. read article How To Figure Drawer Sizes