In this case, the box was 33 tall x 18.5 wide x 18 deep to house starter plants and those that will reach a max height of about 24. Of course, if you wish to build bigger, add to the below. Materials will depend on what size you want the box to be.
Diy level planter box
Plant e diy box
Diy elevated vegetable planter box
DIY Grow Box 8 Steps (with Pictures) Instructables
