Here is a way to hide your most important stuff. Hiding it in the bottom of the dishwasher will give you a lot of room and no one will ever think about looking under it.

Materials needed:
1) Drawer slides
2) 3/4" Plywood
3) 1 1/2" x 1 1/2" wood
4) 3/4" Wood screws
5) 1 5/8" Wood screws
6) 3/4" Metal screws

Step 1: Remove Bottom Facing

1) Remove the bottom facing from dishwasher so you can access the motor area.

Step 2: Dishwasher Wiring

1) Figure out what wiring needs to be moved out of the way.
2) If there is a wire box then remove that.
3) Take the wires from the box and tape/zip tie them as high up as possible.
4) Tape any other wiring up out of the way.

Step 3: Drawer Slides

1) See where drawer slides attach too. You may need to do some improvising with wood or metal to attach it to the legs.
2) Mark for metal screws.
3) Drill holes as big as the main part of the screws, not as big as the threads. The threads need to catch.

Step 4: Attach Drawer Slides

1) Attach the drawer slides to the legs

Step 5: Drawer Base

1) Cut out a 3/4 inch plywood that will fit for the base of your dishwasher.
2) Measure where the motor will hit the plywood.
3) Cut out the area for the motor.
4) Cut out a 1 1/2" x 1 1/2" x "Width of 3/4" plywood you cut out" piece of wood for the front.
5) Attach the 1 1/2" x 1 1/2" with 1 5/8" wood screws.

Step 6: Attack Slides on Drawer

1) Attach the drawer slides to the 3/4" piece of plywood with 3/4" wood screws.

Step 7: Front Facing

1) Drill 2 holes through the facing to attach to the wood.
2) Attach front facing to the 1 1/2" x 1 1/2" piece of wood.

Step 8: Base on Slides

1) Insert the base onto the slides and push the base in.
2) Now install the dishwasher.
3) Place your prized possessions in the new secret compartment.