Developing Drawing Strategies: Part 1 - AutoCAD 2011 and AutoCAD LT 2011: No Experience Required - page 110

NOTE autoCaD requires that you enter a distance containing feet and
inches in a particular format: no space between the foot sign ( ′ ) and the inches
value, and a hyphen (-) between the inches and a fraction. For example, if
you're entering a distance of 6 ′ -4¾ ″ , you enter 6 ′ 4-3/4. the measurement is
displayed in the normal way, 6 ′ -4¾ ″ , but you must enter it in the format that
has no spaces because the spacebar acts the same as the ↵ in most cases.
4. Click the inside line of the left exterior wall (see Figure 4.15).
Select this line
to offset.
Select object to offset or
FiGuRE 4.15 Selecting the wall line to offset
5. Click in a blank area to the right of the selected line. The line is offset
7 ′ -8 ″ (2250 mm) to the right.
6. Press ↵ twice, or press the spacebar twice. The OFFSET command is
terminated and then restarted, and you can reset the offset distance.
TIP In the OFFSET command, your opportunity to change the offset
distance comes right after you start the command. So, if the OFFSET com-
mand is already running and you need to change the offset distance, you
must stop and then restart the command. to do so, press ↵ or the spacebar
twice.
7. Enter 4 ↵ ( 100 ↵ ) to reset the offset distance to 4 ″ (100 mm).
8. Click the new line that was just offset, and then click in a blank area
to the right of that line. You have created a vertical interior wall (see
Figure 4.16). Press ↵ twice to stop and restart the OFFSET command.
9. Enter 6.5' ↵ ( 1980 ↵ ) to set the distance for offsetting the next wall.