Making wooden boxes is more work than buying them, but not nearly as difficult as it seems. Plus, you can make them to perfectly fit your shelves for a fraction of the cost of store bought. Here's how!
The first step is to cut all your wood to size. Check your scrap wood pile first to make these nearly free! If you do have to buy wood, have your wood cut when you buy it. Otherwise, cut your wood using a table saw.
ADJUST THE MEASUREMENTS TO THE SIZE YOU NEEDI made my boxes 12” wide, 11” deep and 9” high but you can adjust them by cutting the two side panels of your boxes 1/2″ shorter than the front and back. The bottom panel will also be 1/2″ smaller in length and width than the overall box.
Now it's time to assemble everything with a hammer and nails or nail gun. You will also need wood glue. Lay one of the side pieces of the box face down and use wood glue to attach the 1″x2″ support pieces. Let dry.