This is a simple ready-to-assemble two step stool I made for my wife for reaching upper cabinets. I designed it to utilize some remaining space on a 4'x8' of a separately commissioned piece, although true cutting dimensions can be shrunk down to 3'x3', recommended board size is .75" (3/4"), the wood in the photo is A/B birch. 

This stool is part of my Rainy Day Projects series, an ongoing series of projects you can build with your kids on a rainy day with only a rubber mallet - no glue or nails required.