Repair price points on rental properties

[David Evans]

Im organizing the difference between minor, moderate, and substantial repairs cost on rental grade properties although my inexperience is hindering me. What would be a good price distinction between each category? 

ex. Minor repairs could fall into anything under $______ 

ex. Moderate repairs could fall into anything between $______ & $______

ex. Substantial repairs could fall into anything over $______

what numbers would you personally fill into these blanks?

Thank you very much for any input, it is much appreciated!