Step stools are compact elevated platforms designed to help people reach objects or surfaces positioned above their normal standing height. Unlike seating stools, their primary purpose is to support a standing person safely while providing temporary additional elevation. Step stools commonly feature one, two, or three steps, with designs ranging from simple wooden platforms to folding metal frames, molded plastic structures, and rolling industrial models. Important features may include nonslip treads, wide supporting bases, handholds, locking mechanisms, and protective feet that improve stability.

They are widely used in residential kitchens, bathrooms, closets, libraries, offices, retail stores, workshops, and maintenance environments. Step stools support everyday activities such as accessing high shelves, changing light bulbs, cleaning elevated surfaces, and reaching storage compartments. Their portability and compact construction distinguish them from larger ladders and permanent stair systems.

Step stools developed from simple raised platforms and small wooden steps used to access elevated surfaces in homes, workshops, and public buildings. Early examples were commonly constructed from solid timber, sometimes incorporating storage compartments or serving multiple household purposes. As furniture making became more specialized, portable steps appeared in libraries, kitchens, shops, and domestic interiors. During the nineteenth and early twentieth centuries, manufactured wooden step stools became more standardized, while folding mechanisms allowed larger models to occupy less storage space.

Industrial production introduced steel and aluminum frames, rubber feet, and textured stepping surfaces. Lightweight molded plastics later expanded the availability of inexpensive household models. Safety considerations increasingly influenced their construction, encouraging broader bases, improved traction, stronger joints, and locking mechanisms that distinguished purpose-built step stools from ordinary seating furniture.

Step stools will increasingly emphasize stability, accessibility, compact storage, and safer everyday use. Contemporary products include folding aluminum steps, lightweight molded-plastic platforms, children's learning towers, and compact designs with integrated handholds and nonslip surfaces. Advances in materials may produce stronger stools with reduced weight, using recycled polymers, engineered timber, and lightweight metal alloys.

Improved folding mechanisms could make step stools easier to deploy and store within cabinetry or narrow spaces. Some designs may incorporate clearer visual indicators for proper positioning, automatic locking systems, or enhanced grip surfaces that respond to different floor conditions. Accessibility-focused models could offer additional hand support and more secure stepping arrangements for users with varying mobility needs. Modular construction, replaceable feet, and durable components may extend service life while maintaining the portability that makes step stools useful.