Out of print publication, available as a photocopy only No manufacturing or building process can achieve absolute accuracy. This variability arises from the inherent nature of building processes, and is characteristic of them. However, if potential inaccuracies are anticipated at the design stage, problems of misfit can be minimised, and rejection of work, delays and expensive remedial measures avoided. Technical Note 113 gives design procedures for three options: choosing details to avoid conflict and specifying normal accuracy; accepting conflict and using or designing types of joint which will accommodate variability, again specifying normal accuracy; or specifying special accuracy where normal variability cannot be accommodated in details or joints. Site procedures discussed include accuracy of the survey and of construction materials and components.