It's a removable or hinged door, typically made up of metal, plastic, or drywall, installed in walls or ceilings to provide easy disguised access to hidden mechanical, electrical or plumbing components. They allow for inspection, maintenance and repair of utilities without damaging the structure. Specialized fire rated access panel seal off compartment to prevent fire spreading. We have 300mm(30 by 30), 400mm, 600mm and 60 by 120