Imperial Mailbox Systems
Imperial Mailbox Systems is an American manufacturing company which produces the highest-quality cast-aluminum mailbox systems. For over 20 years Imperial has presented America the highest quality mailboxes and street signs and has become synonymous with curb appeal. As the leading mailbox manufacturer, Imperial was invited to co-author the U.S.P.S. Std 7b, standardizing the manufacturing of all residential mailbox systems.
Imperial Assembly Instructions
Having trouble assembling your new product? No worries! The table below contains instructions for many of our Imperial products. Just click the name of the item to open the pdf file.
U.S.P.S Mailbox Guidelines 2017
Installing a New Mailbox? Look for the Postmaster General’s Seal. Every new mailbox design should be reviewed and receive the Postmaster General’s (PMG) seal of approval before it goes to market. If you opt to construct your own mailbox, it must meet the same standards as manufactured boxes, so show the plans to your local postmaster for approval.
Placing the Mailbox
Here are some helpful guidelines to follow when installing your mailbox:
• Position your mailbox 41″ to 45″ from the road surface to the bottom of the mailbox or point of mail entry.
• Place your mailbox 6″ to 8″ back from the curb. If you do not have a raised curb, contact your local postmaster for guidance.
• Put your house or apartment number on the mailbox.
• If your mailbox is on a different street from your house or apartment, put your full street address on the box.
• If you are attaching the box to your house, make sure the postal carrier can reach it easily from your sidewalk, steps, or porch.
Installing the Post
The best mailbox supports are stable but bend or fall away if a car hits them. The Federal Highway Administration recommends:
• A 4″ x 4″ wooden support or a 2″-diameter standard steel or aluminum pipe.
• Avoid unyielding and potentially dangerous supports, like heavy metal pipes, concrete posts, and farm equipment (e.g., milk cans filled with concrete).
• Bury your post no more than 24″ deep.
Mailboxes take a beating from the weather, so we recommend an annual mailbox checkup to avoid damage to your mail or difficulty identifying your address.
• Tighten loose hinges on the door
• Take care of rusty or loose parts
• Replace missing or faded house numbers
• Keep the path to your mailbox clear