DESIGN AND LAYOUT - FRONT OFFICE

The thickest line in the alphabet of lines used to outline the border.

• Border line

• Center line

• Dimension line

• Extension line

Thick line drawn in freehand to show details that a part has been cut off or broken out.

• Cutting plane line

• Dimension line

• Long break line

• Short break line

A thin line that extends from the object in order to show dimension limits

• Border line

• Center line

• Dimension line

• Extension line

The symbol for table.

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The symbol for conference table.

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A medium thick line composed of short dashes about 2-3 millimeters long with space between dashes about 1-2 millimeters wide; it represents the surface or edges that cannot be seen.

• Border line

• Invisible line

• Section line

• Visible line

A thin line shows the surface that has been cut; they are spaced evenly at 45 degrees with the horizontal to make a shaded effect.

• Border line

• Invisible line

• Section line

• Visible line

A thin line with an arrowhead at one end indicates the object's measurements.

• Border line

• Center line

• Dimension line

• Extension line

Symbol for stairs.

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Thick lines used to indicate an imaginary cut through an object along the line.

• Cutting plane line

• Long break line

• Section line

• Short break line