Add a built in step stool to your vanity! Just remove the toekick and replace with a slide out step drawer.
1 set of Heavy Duty 16" drawer slides 1 - 1x3 @ 8 feet long 1 - 3/4" plywood 16" x width of drawer
You may need to modify or alter this tutorial depending on the type of vanity you use. Optimally, use a vanity with 6" toekick, as shown, with a full overlay door. Please read through the entire plan and all comments before beginning this project. It is also advisable to review the Getting Started Section. Take all necessary precautions to build safely and smartly. Work on a clean level surface, free of imperfections or debris. Always use straight boards. Check for square after each step. Always predrill holes before attaching with screws. Use glue with finish nails for a stronger hold. Wipe excess glue off bare wood for stained projects, as dried glue will not take stain. Be safe, have fun, and ask for help if you need it. Good luck!
Measure the opening left from removing the toekick. In my case, that's 22 3/4" wide. I also took a height measurement to confirm I would need to use 1x3 boards to build the step drawer.
Also take a second to confirm that the opening is at least 16" deep - otherwise, you will need to adjust your drawer depth and use shorter slides.
With the step drawer built, install in the drawer opening with drawer slides, placed to the tallest possible position. Attach toekick to step drawer (I used a couple of 2" finish nails to hold it on, removed the drawer and marked it, and then attached with the Kreg Jig).
It is always recommended to apply a test coat on a hidden area or scrap piece to ensure color evenness and adhesion. Use primer or wood conditioner as needed.