All you need to know for ‘Timbers’ is right here… 7.1 Design contexts 7.2.1 Sources of Timber 7.2.2 The physical characteristics of timber 7.2.3 Growth rings 7.2.4 Social Footprint 7.3 Selection of Timbers Sources, origins and properties Selection and reinforcement of materials Stock forms and production Processing and finishing Trust yourself, you know more than you think you do.