The diagram below shows how 2" or 4" of additional step-over may be added if needed. However, remember that it is usually desireable to keep the step-over as low as possible to maintain accessibility. Because of that, it may be better to add height by moving to a larger sized pet door. Every increase in Endura Flap™ pet door size adds 4" to the height of the pet door without raising the step-over at all.

Adding Additional Step-Over