Why Mailbox Size Matters
Your mailbox may seem like a small detail, but its size can make or break your daily delivery experience. Too small, and you’re dealing with bent magazines, jammed envelopes, or packages left exposed on your porch. Too big, and your mailbox may look oversized for your space.
The key is to find a mailbox that balances capacity, security, and style.
📚 Mail & Magazines
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Magazines and catalogs are typically 8.5" x 11" or larger.
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A mailbox at least 12” wide and 4”–5” deep ensures they slide in flat without folding.
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Wider mailboxes also protect mail from sticking out and getting damaged by rain or wind.
💡 Adoorn’s modern wall-mount and post-mount mailboxes are designed with wider openings so your magazines arrive crisp and clean.
📦 Small Packages & Padded Envelopes
Online shopping has changed everything—today’s mailbox needs to handle bubble mailers, padded envelopes, and small parcels.
Look for:
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Depth of at least 9–10” to accommodate thicker deliveries.
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Wider openings with inward clearance so items don’t jam.
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Option to pair with a package delivery box for larger items.
💡 Adoorn’s mailboxes all receive mail and padded envelopes. Pair with the Adoorn Package Box to secure your deliveries from all carriers, including UPS, FEDEX, USPS, Amazon and more.
🏡 USPS Guidelines
The U.S. Postal Service requires that mailboxes:
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Fit daily delivery volumes without forcing carriers to leave mail outside.
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Be accessible (post-mount boxes at 41–45 inches high, 6–8 inches back from curb).
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Have a clear slot or door that carriers can use without difficulty.
👉 Choosing a properly sized mailbox ensures smooth deliveries and keeps your carrier happy.
🔑 Pro Tips for Sizing Your Mailbox
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Think about your delivery habits: Do you shop online often? Expect thicker packages.
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Consider household size: Families with multiple residents receive more mail.
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Don’t overlook future needs: Package volumes keep rising year after year.
💡 Adoorn’s mailboxes come in different sizes. Check out and pick the right size for you.
❓ FAQs
Q: What’s the largest mailbox USPS allows?
There’s no set maximum, but USPS requires your box be practical for carrier use and not obstruct delivery routes.
Q: Can I install a package box instead of a mailbox?
No. USPS requires a mailbox for letters—but you can add a package delivery box for larger items.
Q: How do I know if my mailbox is too small?
If you regularly find mail sticking out, bent, or left on the ground, it’s time to size up.
Final Thoughts
The right mailbox size ensures your deliveries arrive safe, flat, and secure. From magazines to padded envelopes, a thoughtfully sized mailbox makes life easier.
👉 Adoorn’s mailboxes are built to handle today’s deliveries—magazines, small packages, and more—without compromising modern style.