The document discusses the design considerations for barrier-free school facilities that serve disabled students. It outlines four major principles: the range of movement for physically disabled people, their strength, dimensions of prosthetic devices like wheelchairs, and use of durable materials. It then provides details on classroom design including larger size, switch placement, window rails, and blackboard height. Case studies of three international schools are described that incorporate universal design features like sensory trails, redundant signage, and interaction between private and public spaces.