Installation — Mail Slot

Not all doors can accept a "through-the-door" mail slot.

must be hinged on the side opposite the door's hinges. mail slot installation

Before you start cutting, you must ensure your mail slot meets USPS requirements to avoid delivery disruptions: Not all doors can accept a "through-the-door" mail slot

Would you like a version focused on a (e.g., by a locksmith or door shop) or a DIY installation review instead? mail slot installation

Before you start drilling, contact your local . The USPS has specific regulations for mail receptacles, and all mailboxes or slots must be Postal Service™ approved. Generally, the bottom of the slot should be at least 30 inches above the floor. 2. Choose Your Hardware