Secret sliding bookcase conceals hidden door
Secret wine rack/bookcase door opens to reveal hidden closet
Secret gun drawer bookcase cabinet
Secret bookcase door in billiard/recreation room
Secret bookcase door conceals hidden closet
This sliding secret bookcase door conceals a laundry room. It uses skateboard wheels, and could be used to hide any number of different entrances.
Ikea bookcase used as a hidden sliding bookshelf door
This rec room has a secret bookcase door entrance.
Secret elevator door made from a sliding bookcase
Secret bookcase door found by police used to conceal illegal marijuana operation