To model the problem, we know that there are 7 strips of wood, each with width \( s \). The total width of the finished sign is 14 inches. Therefore, we can express this relationship with the equation:
\[ 7s = 14 \]
Now, to solve for \( s \), we can divide both sides of the equation by 7:
\[ s = \frac{14}{7} \]
Calculating that gives:
\[ s = 2 \]
Thus, the width of each strip of wood is \( 2 \) inches.