The \'Fire Door Keep Locked\' Sign is for use in commercial properties. Building Regulation Mandatory Sign In commercial properties fire door signs are a mandatory requirement under current Building Regulations on all fire doors and should be visible at all times. The appropriate sign either ‘Fire Door Keep Shut’ or ‘Fire Door Keep Locked’ should be fitted and the signs themselves should comply with BS5499 Part 1 & 5. Aluminium Sign This sign is made from aluminium. It has a satin aluminium finish.   Other Variations The sign is also available in two o...