USPS mailbox height regulations for commercial
Installing mailboxes isn’t just about following USPS regulations — it’s about accessibility for everyone. The USPS mandates specific height requirements to make sure mail slots are practical and safe, while ADA guidelines add further considerations for shared or public spaces. This article breaks down the minimum and maximum installation heights, ADA reach standards, and key compliance factors to help property managers, builders, and office planners create mail systems that are both legal and inclusive.