Hi

We have two small store rooms inside a shop both with fire doors. they don't have any blue fire door signs. do I need keep the doors locked or just shut pls. need to buy the blue fire door signs but not sure which ones. thanks

If the store rooms are small, used as cupboards and there is no self-closing device fitted to the door it must be kept locked. Fit a Fire Door Keep Locked sign to the outside face of the door. 

If the door is self-closing it does not need to be kept locked but must be kept shut. Fit Fire Door Keep Shut signs to both faces of the door.

In Scotland the building regs state a maximum size for the cupboard for such scenarios. 

Guidance can be found in the document 'Code of practice: Hardware for Fire & Escape doors' at  http://www.firecode.org.uk/