Folding up this step stool is literally a snap - just pull up on the handle and it snaps shut to less than 2" thick. That's thin enough to stow under a sink, in a narrow slot next to a cabinet, or even on a nail on your workshop wall. It's also very lightweight and made of a weatherproof polymer, so…
…to the wall at whatever height is easiest on your back, or at eye level to make checking for bow and twist a cinch. Fasten it up high and use a step stool if shop space is at a premium. With this kind of flexibility, lumber storage problems will soon be a thing of the past.