PURPOSE: Elevator Door Jamb plate signs aid the visually impaired, and are required on elevator door jambs outside the elevator, one on each side. This tactile plate consists of a raised character and braille with specific floor or level designations. Note: Main or egress floors should be identified with a “star” in front of the floor number.r number. ESSENTIAL: This sign is usually code required, and an essential component for fire emergencies and assisting the visually impaired. DURABLE MATERIALS: Stay code compliant with our elevator braille jamb plates made of durable black .080” thick black injection molded plastic. Sonic welded white floor level tactile text. Measuring 4" wide x 4" high, these elevator jamb plates signs include self adhesive double faced tape on the backside for easy installation. Just peel and stick!mbol. PURPOSE: Elevator Door Jamb plate signs aid the visually impaired, and are required on elevator door jambs outside the elevator, one on each side. This tactile plate consists of a raised character and braille with specific floor or level designations. Note: Main or egress floors should be identified with a “star” in front of the floor number.