Lockable FRB Notice Boards are fully flame retardant. This means that not only the fabric material, but the backboard itself is also flame retardant. The display cabinets are light and easy to use. Only the most secure materials are used: The see through doors are made of APET which is shatterproof and offers excellent visibility. This material is commonly used in bus shelters and riot shields. There are one and two door variants depending on the size and weight of the board. You can choose from a lockable see through door with a wood effect frame or an aluminium frame.Noticeboards are used in many environments. The doors give added protection against spread of flames during a fire and are a prerequisite for noticeboards placed in public corridors and fire exits.. The lockable doors also make them tamperproof and they are widely used in schools and colleges.