1. Measure the painting top to bottom and divide by 2, example: 24"x24" painting gives you the measurement of 12". 

2. Add that number to your center point of 58" - in this case 70"

3. Subtract the distance of the hanging system from 70", example if the hanging system is 4" from the top, your measurement is 66" 

4. Measure from the floor to your found measurement, in this case 66" and sink a nail!

5. Hang your beautiful artwork!!