Installing USPS STDs 4c compliant mailbox systems is really quite straightforward if one simply takes the time to carefully consider these three pre-planning steps prior to the commercial cluster mailbox installation:
- Ask the mailbox experts
- Decide how you want your 4C cluster mailboxes mounted
- Review USPS 4C mailbox regulations first
Ask the Commercial Mailbox Experts
First, avoid ordering the wrong cluster mailbox units for your project by contacting a 4C commercial mailboxes expert at a reputable reseller, such as The MailboxWorks. Unlike Internet only stores that simply drop-ship a product they have never seen, the commercial mailbox experts at The MailboxWorks know every aspect of the products they sell and can guide you with not only the most versatile 4C mailbox suites for your project, but also help you with mailbox configuration and installation options.
How Will Your 4C Mailboxes be Mounted?
Second, consider the actual installation of 4C mailboxes; will they be rear access or front access, and should they be recessed or surface mounted?
Rear Access Mailboxes – Some project managers install 4c mailboxes with rear access that are designed for the postal carriers to access the unit from the rear either through a master door or (if rear access is in a private locked room) with an open back.
Front Access Mailboxes – Others prefer the installation of 4C mailboxes have front access, which includes a master door that opens the entire unit to allow postal carriers access to all mailbox compartments at once.
In addition, some installation venues simply do not have the wall clearance for the units to be completely recessed into the wall and are excellent candidates for an easy to install special 4C collar, which will ensure the cluster mailbox units have a polished, finished look when surface mounted.
Adhere to USPS 4C Mailbox Requirements
The third, and most important pre-planning step when installing 4C mailboxes is to review USPS installation guidelines for 4C horizontal mailboxes before starting the project.
The US Post Office has established firm guidelines for the installation of 4C horizontal mailboxes to ensure access for all patrons, regardless of handicap or stature.
Here’s a quick review of the key five USPS 4C requirements you must know:
- First, a minimum of one of the 4C horizontal mailbox compartments must be positioned less than four feet from the finished floor.
- Second, no interior bottom shelf of any parcel locker compartment can be positioned less than 15 inches from the finished floor.
- Third, none of the tenant compartments in the Florence 4C mailbox units can be located higher than 67 inches above the finished floor.
- Fourth, no interior bottom shelf of a tenant compartment can be positioned less than 28 inches from the finished floor.
- And fifth, the USPS Arrow lock must be located between three and four feet from the finished floor.
You can also view the USPS 4C mailbox installation requirements here.