Dimensions add clarity to your sketches and allow you to position objects precisely. Use the horizontal dimension tool from the Sketcher toolbox to create horizontal dimensions between two vertices or vertical lines. Select the dimension modification tool 
to modify a dimension.
To create a horizontal dimension, select two vertices or vertical lines and move the dimension text to the desired vertical position, as shown in the following figure:
Note: If you want to create a horizontal dimension between vertical lines, the lines must be exactly vertical.
To add a horizontal dimension:
From the dimension tools in the Sketcher toolbox, select the horizontal dimension tool 
. For a diagram of the tools in the Sketcher toolbox, see “The Sketcher tools,” Section 19.4.1.
ABAQUS/CAE displays prompts in the prompt area to guide you through the procedure.
Select a vertical line or a vertex at each endpoint.
The dimensioning bracket and the numerical dimension appear as you move the cursor.
Move the cursor vertically to the location where you would like the horizontal dimensioning line to appear; click when you are satisfied with the appearance of the dimension.
To create additional horizontal dimensions, repeat the above steps beginning with Step 2.
When you have finished creating horizontal dimensions, either
Click mouse button 2 anywhere in the ABAQUS/CAE window, or
Select any other tool in the Sketcher toolbox, or
Click the cancel button 
in the prompt area, or
Click the horizontal dimension tool in the Sketcher toolbox.
