CBU & Canopy Solutions for
Land Developers, Architects and Home Builders

Mitchell Metals is your resource for the design, planning and installation of Pre-Engineered Canopies covering USPS Cluster Mailboxes. Our comprehensive drawings below can be easily reviewed and incorporated/downloaded into your amenities package or construction set of drawings. The drawings detail ADA compliant concrete pad size, mailbox layout to USPS specifications, as well as canopy dimensions — length, width, height — and the necessary column/footing layout. Additionally, we provide footing details tailored to the wind speed in your area.

If you would like a free estimate for a CBU Canopy or a bundled price for Boxes and Canopy, please email us at cbucanopy@mitchellmetals.net or call the number below.  In your email, provide the name of the neighborhood/community, number of homes, address with city, state, zip and contact information. We look forward to hearing from you!

Click on the tabs below to see our pre-engineered canopy and box layout options

Back-To-Back Cluster Mailbox Layout – allowing more boxes in less space

Hover over the images to view and download drawings today!

Cantilever CBU Canopies

Hover over the images to view and download drawings today!

Cantilever CBU Canopies

Hover over the images to view and download drawings today!

12 x 12 Gable
9 Units for 144 Homes

View & Download Drawing
View & Download Spec

12 x 24 Gable V1
18 Units for 288 Homes

View & Download Drawing
View & Download Spec

12 x 24 Gable V2
16 Units for 256 Homes

View & Download Drawing
View & Download Spec

CBU Canopy Installation Details

Specification Section – 10550 – Postal Specialties Cluster Box Unit (CBU) Canopy Cover

Download Specification PDF PDF

The canopy designs follow the USPS standards for cluster box unit mailbox layout along with our column layout needed to meet wind speed and snow load requirements. Design criteria for all canopies are as follows: IBC 2018, ASCE 7-16, ADM 2015, Exposure B, Risk Category II, and Live Load 20 psf.

Contact Us

If you would like to get in touch with us about your CBU mailbox layout, please use send us an email with the details to allow our team to better assist you. We provide installation within an hour radius of the Atlanta, GA area. If you are outside the Atlanta area, we can ship the prefabricated material to you for simple installation.