StepDesk^TM Treadmill Compatibility

StepDesk compatibility requirements:

Treadmill side rails with at least 10" of straight surface
Treadmill side rails that are parallel to each other
Treadmill side rails that are level or only slightly inclined

Examples of treadmill designs that are compatible with StepDesk:

StepDesk IS NOT compatible with the following:

Treadmill sides rails with less than 10" of straight surface
Treadmill side rails that are not parallel
Treadmill side rails that are too steeply inclined

Examples of treadmill designs that ARE NOT compatible with StepDesk: