The ASME standards discussed in lesson 1.03 dictate the general guidelines/ common practices shared below.

1) Provide the overall dimensions - length, height, and depth.

2) Identify location and size of each feature.

3) Place dimensions on the views that primarily show the feature (for example, dimension a cut out's object line instead of the view with hidden lines).

4) Dimensions should be placed outside of the views using extension lines.

5) Dimension lines should be drawn parallel to the direction of measurement.

6) Dimensions should be grouped together. If there are several parallel dimensions, then numerals should be staggered for clarity.

7) Dimensions should not be duplicated (for example, if overall width is dimensioned on the front view, it should NOT be repeated on the top view).

8) Extension lines should not cross dimension lines therefore place smaller dimensions nearest the view and larger ones farther.

9) Dimensions do not need linear units as the drawing should have a note that specifies units (the degree symbol will be used after angle dimensions).

10) Diameters should be dimensioned where the cut out is shown as a circle and the arrowhead should point toward the center. Radii should be dimensioned where the round is shown as an arc.