Thank you for the info and clear description. I also have this problem in 1 bedroom. This room has an entry door and a closet door that opens to a shared "Jack & Jill" closet. Air flow in the closet is not restricted. On the other end of the closet is a door that opens into a home office. The entry door to the home office is always open. If I cut off the bottom of all three doors (bedroom entry, bedroom closet, and office closet) that means there are 2 doors in the bedroom, and one in the home office that would have unrestricted air flow to the central return. Air flow into and out of the home office is not a problem because the entry door is always open and the central return is in the ceiling just outside of the home office. Unlike most bedrooms I'm fortunate that in this bedroom there are two doors that would have unrestricted air flow. I don't have a flow meter and was wondering if I need to cut 1 5/8" out of each door. Thank you for your help - it's greatly appreciated!
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