Interior VR scale problem

Hello everyone , am using the oculus rift and one of the major problems am facing right now is the right scale for the VR camera , when i look through the oculus i feel like am abit out of scale meaning am at 1.74cm and inside my rift am almost head to head witha door 2.2 cm so how to adjust and fix this problem ??


With the HTC vive i use that : and it’s really easy to set the perfect size.
But are you really sure you used the good unit ?