Pound for pound the steel door offers a cost effective long term answer to replacing doors that require a good security level, it is surprising how the total cost of fitting a timber door escalates when you take into account the door blank or sash, timber outer framework furniture required, any additional locks, painting or staining required and finally the labour cost to fit all this, and then after all of these costs added together you still have a wooden door that will require ongoing maintenance and offer minimal security levels, why not fit a steel door and forget it.