With the growing popularity of cordless power tools, it's extremely easy these days to accumulate a lot of portable tools, and when you add in quality corded tools, such as circular saws, routers, planers and air nailers, you can end up with a pretty hefty investment. These same tools are the first to "walk away" in a theft. Left lying around a shop or garage, they can also be somewhat dangerous for youngsters. A locking cabinet not only provides a secure place, but protects the tools as well. The cabinet shown is made of 3/4-inch plywood and has an open shelf below the locking cabinet for chargers for cordless tools, or for less valuable gear. The cabinet shown is to be used in a garage and the plywood is economical "good one-side" (C/D) fir plywood. You may prefer to utilize a pine, birch or other more decorative plywood if your shop or garage is more upscale. For a step-by-step guide to building your own locking tool cabinet, watch this DIY video tutorial.