How to add foot (') symbol to line label dim

[sdaly697828]

Seems so simple but my linear dimensions don't have a foot symbol (') suffix following the dimension, how do I add that to my style.
thanks much,
Sean

[Opie]

Edit the contents of the style and add the symbol where you need it.

[donalcommane]

Dimension style manager, modify, primary units, suffix

[jal.neal647620]

Just put the ' mark after the label when you insert it.