PUBLIC MARKS from Ralpharama with tags fire & plaster

New fire doors from old doors - Are you hot on fire doors? If so, see if you can turn an old door into a fire door. Or, Plaster and plasterboard Test your knowledge! Are you a plasterboard professor or a prefab plonker? Could you go the distance with the BMJ editor in a round of Mastermind, with plasterboard as your specialist topic? There's only one way to find out!