4B HORIZONTAL MAILBOXES

4B Horizonal Mailboxes are USPS approved for replacement installations. For new construction, see
Cluster Box Units and 4C Horizontal Mailboxes.
4B Mailboxes are available in both front-loading and rear-loading configurations.
Mailbox World Guarantees the Lowest Pricing on all 4B Horizontal Mailboxes!

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  • Unit Height

    3635 – 4B+ Horizontal Mailbox – 5 Door High Unit – 35 Doors (34 Usable) – Front Loading – USPS Access

    $3,382.00

    3635 – 4B+ Horizontal Mailbox – 7 Door High Unit – 35 A Doors – Rear Loading – USPS Access

    $4,132.00

    140075A Florence 4B Mailbox (3 High) Front Loading – 35 Doors (34 Usable) – USPS

    $2,550.00

    140075PLA Florence 4B Mailbox (7 High) Front Loading – 35 Doors (30 Usable) – USPS

    $2,899.60

    140075OUA Florence 4B Mailbox (7 High) Front Loading – 35 Doors (30 Usable) – USPS

    $2,899.60

    3630 – 4B+ Horizontal Mailbox – 6 Door High Unit -30 Doors (29 Usable) – Front Loading – USPS Access

    $2,946.00

    3630 – 4B+ Horizontal Mailbox – 6 Door High Unit – 30 A Doors – Rear Loading – USPS Access

    $3,592.00

    140064A Florence 4B Mailbox (6 High) Front Loading – 24 Doors (23 Usable) – USPS

    $1,830.00

    3628 4B+ Horizontal Mailbox – 7 Door High Unit – 28 Doors (27 Usable) – Front Loading – USPS Access

    $2,704.00

    3628 – 4B+ Horizontal Mailbox – 7 Door High Unit – 28 A Doors – Rear Loading – USPS Access

    $3,385.00

    140074A Florence 4B Mailbox (7 High) Front Loading – 28 Doors (27 Usable) – USPS

    $2,240.00

    3625 – Salsbury 4B+ Horizontal Mailbox – 5 Door High Unit – 25 A Doors (24 Usable) – Front Loading – USPS Access

    $2,472.00

    3625 – Salsbury 4B+ Horizontal Mailbox – 5 Door High Unit – 25 A Doors – Rear Loading – USPS Access

    $2,874.00

    140065A Florence 4B Mailbox (6 High) Front Loading – 30 Doors (29 Usable) – USPS

    $2,290.00

    140065PLA Florence 4B Mailbox (6 High) Front Loading – 27 Doors (25 Usable) – USPS

    $2,390.00

    140065OUA Florence 4B Mailbox (6 High) Front Loading – 26 Doors (25 Usable) – USPS

    $2,461.80

    3624 – 4B+ Horizontal Mailbox – 6 Door High Unit -24 Doors (23 Usable) – Front Loading – USPS Access

    $2,370.00

    3624 – 4B+ Horizontal Mailbox – 6 Door High Unit – 24 A Doors – Rear Loading – USPS Access

    $2,840.00

    140055A Florence 4B Mailbox (5 High) Front Loading – 25 Doors (24 Usable) – USPS

    $1,805.10

    3621 – 4B+ Horizontal Mailbox – 7 Door High Unit -21 Doors (20 Usable) – Front Loading – USPS Access

    $2,076.00

    3621 – 4B+ Horizontal Mailbox – 7 Door High Unit – 21 A Doors – Rear Loading – USPS Access

    $2,580.00

    140073A Florence 4B Mailbox (7 High) Front Loading – 21 Doors (20 Usable) – USPS

    $1,531.20

    140055PLA Florence 4B Mailbox (5 High) Front Loading – 25 Doors (20 Usable) – USPS

    $2,035.00

    140055OUA Florence 4B Mailbox (5 High) Front Loading – 25 Doors (20 Usable) – USPS

    $2,035.00