How tall does my ceiling need to be for the J-BARR to work? J-BARR INC. June 03, 2020 12:50 Updated For the best operation your ceiling needs to be a minimum of 9 feet tall. Related articles Can I close the back window when using the J-BARR? Can I use the J-BARR for long term storage? Comments 0 comments Please sign in to leave a comment.
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