Karp inc. Drywall recessed door w/factory installed drywall – lock, 18″wx18″h, rdwpd1818l karp drywall insert recessed prime 18×18 lock the face of the door on the rdwpd contains a factory installed 1/2″ drywall to match the texture of the surrounding drywall. The door frame shall include a drywall bead so that drywall cement can be applied to conceal the flange. The rdwpd is the perfect solution when concealing the access door is required for aesthetic purposes. The rdwpd also reduces installation time and costs.