Installing shelves in a locker can make the locker much more organised and convenient. If you own the locker yourself, you can simply screw or bolt the shelves in place. However, most people do not own the lockers that they use on a regular basis. They belong to an employer, a fitness club or a school. You can build shelves that you can install without damaging or permanently modifying your locker.
Measure the width and depth of the inside of the locker. Cut the plywood sheet to match those dimensions.
Set up the four wooden strips on end in each corner of the plywood sheet. Use the wood glue to fix them in place. Allow to dry.
Turn the shelf on its side. Reinforce the strips with two finishing nails per strip, nailed through the plywood and into the end of the strip.
Set the shelf on the bottom of your locker, or on the single shelf often included in lockers already.
Repeat steps one through four to build additional shelves. These shelves will stack on one another as high as your locker can accommodate.