Introduction

Dimensions are a very important part of construction drawings. Without them, no-one would know what size anything should be. In this section, we’ll look at some of the different types of dimensions and how they are shown in drawings.

A good designer or draftsperson will make sure that a drawing has all the information needed about the length, width, and height of everything that is to be built.

Length and width are usually indicated with rows of ‘dimension lines’ that align with the various features of the drawing. Alternatively, there might be a note near the feature – for example, ‘830 wide x full height opening’.