The Cluster Box Options Overview can be found here. Download PDF for printable version.

Cluster Box Units Provide a Flexible Delivery Solution

Whether you plan to serve four or 2,000 residents, cluster box units (CBU) provide a flexible solution to accommodate your building project needs. Simply select the pre-configured unit(s) that has the best options for your residents. These standard stock units can be used individually or in larger group installations - all providing a convenient, secure method of mail and package delivery to residents.

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Florence "F"Series CBU is Officially Licensed by the USPS

The Florence 1570 series CBU was the first Officially Licensed CBU of the US Postal Service for centralized mail delivery. License #1CDSEQ-08-B-0012

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Cluster Box Unit Standard Compartment Sizes

All CBU Types are USPS Approved and pre-configured with standard tenant and parcel locker heights which meet specific regulations.

Note: All OPL parcel lockers are 19-3/4"H x 12"W

Type I, II, III, VI
Tenant Door
3-1/4"H x 12"W
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Type IV Tenant Door
5"H x 12"W
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Type V Double High Tenant Door
6-1/2"H x 12"W
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Type I, II, III, IV, V, VI
Parcel Locker
10"H x 12"W
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Type I, III, V, VI
Parcel Locker
13"H x 12"W
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NOTE: As USPS Regulations have designated the pre-configured nature of all cluster box units, Color and Door ID Options are the only selections necessary when choosing which CBU best fits your project needs.
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(Actual Size Shown)

Door ID Options

Decals: All CBUs come standard with silver adhesive decals which are 1-1/2"H x 1-3/4"W. Black lettering can contain up to five characters per decal.

Engraving: Custom engraving utilizes the USPS Standard US Block font, with up to 12 characters per line. (Five additional font options are also available.) This 3/4"high engraving may be created with or without two color fill options.

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Color Options

All cluster box unit types are available in four different architectural powder coat finishes
*Note: Postal Grey is USPS Approved for replacement only and is not intended for new installations.
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Black (BK)
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Dark Bronze (DB)
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Postal Grey* (PG
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Sandstone (SD)