My cat cannot stand when our door is closed. We work night shift so we want the door shut. I have created a removable door stop using harbor freight magnets. This allows the door to barely be open and have a blackout curtain to keep light out. The door padding is for tpu. It is different thicknesses to accommodate variation in door thickness. Cut each piece in half, trial till a combination fits snug on door. Once I put my blackout curtain on I used a zip tie to keep it from sliding off. I have included the F360 file for you to easily modify to fit your specific needs. No need for supports