Aluminum Mailboxes

Aluminum mailboxes are weather resistant, provide good security and are manufactured from heavy duty aluminum that provides protection from rust; providing years of usage.

The core reason most mailboxes are made from Aluminum is because of its ability to resist corrosion to the elements such as rain, snow, hail etc. The surface layer of aluminum oxide forms once aluminum is exposed to air; essentially preventing further oxidation.

Additionally it is a low density metal which is soft, durable and lightweight and has about one-third the density and stiffness of steel.

Residential Aluminum Boxes

Most residential mailboxes are cast from aluminum. Aluminum mailboxes come in various styles and colors and are USPS approved. Below is a list of residential aluminum boxes available at

Commercial Aluminum Mail Boxes

We carry a large selection of commercial aluminum mail boxes that are USPS approved.  This includes cluster box units, horizontal mailboxes, NDCBUs, parcel lockers and more.  Below is a list of commercial aluminum mailboxes that are available at


Make National Mailboxes your choice for commercial and residential aluminum mailboxes.  Please be sure to contact us with any questions you may have.

Collection Mailboxes

Collection MailboxesCollection mailboxes or mail collection boxes have been one of National Mailboxes most extensive product lines for many decades. National Mailboxes manufactures, supplies, and distributes a broad selection of high quality collection mailboxes. Everything from heavy duty durable and rugged steel curbside collection boxes to our smaller wall mount style letter boxes. National Mailboxes has been a long standing leader in the mailbox industry and has been specializing in the production of collection mailboxes for several decades with distribution throughout the United States including all 50 states as well as to Canada and Mexico. Some of our collection boxes are USPS Approved for U.S Mail Delivery and other styles are specifically designed for private use/access or private distribution. A sampling of our product line of collection boxes include our: curbside collection boxes, courier collection boxes, pedestal drop boxes, mail package drops, vertical and horizontal collection boxes, letter boxes, outdoor jumbo collection boxes, bundle collection boxes, mail collection centers and parcel lockers which are ideal for office and commercial buildings, utility companies, local city governments, colleges, universities, schools, military bases, libraries, office buildings, video stores, financial institutions, as well as many other applications.

Our ever popular free standing curbside collection boxes are manufactured and constructed of 16 gauge heavy duty steel. These rugged and durable collection boxes possess a durable powder coated finish available in two standard colors gray and white as well as primer. Custom colors are optional upon request. Curbside collection boxes are locked by putting a standard padlock through the steel hasp on the front of the box. These units are available with an optional factory installed matching snorkel. Snorkels are attached to the collection box to provide additional convenience when depositing materials, especially with drive up situations. These units are ideal for videos, books, catalogs, magazines, e-commerce and other various applications.

Courier Collection Boxes

Courier Collection BoxesOur new free standing courier collection box, the sister product to the curbside collection box is also high in demand and suitable for all kinds of mail collection box needs. Manufactured of 14 gauge steel, these courier boxes offer an easy way of depositing and retrieving mail, small packages, documents, magazines, and other materials. Our courier boxes feature a tough powder coat finish available in three standard colors or primer. Custom colors are optional upon the customer's request. Each box comes with a three point locking mechanism with two keys for protection of its contents. Courier boxes are able to withstand extreme weather conditions are perfect when a secure surrounding is required. These units are suitable for universities, schools, cities, government entities, libraries, military bases, and a wide variety of other applications.

National Mailboxes also offers free standing style pedestal drop boxes that manufactured completely from heavy duty aluminum and are available in three different size styles: Regular, Large, and Jumbo size. All pedestal drop boxes are the same height and depth. Standard boxes are opened from the rear through a two point latching master door on the regular size model and two master doors on the large and jumbo size models. Each door opens up over 90 degrees for retrieving mail with ease. Standard units have a locking T handle on the rear door(s), a weather protected hood and a mail flap on the front of the box. Our pedestal drop boxes come equipped with a tough powder coat finish available in three standard colors or primer. These units can be mounted on an optional aluminum pedestal stand base. Special custom colors are also optional upon customer's request.

4C Pedestal Package Drop Boxes

Package DropsAnother style of collection mailboxes offered by National Mailboxes are the free standing 4C pedestal style mail package drops which are also manufactured completely of heavy duty aluminum and come equipped with both a front and rear loading access locking door. Mail is deposited through a non-locking access panel drawer on the front. Every mail package drop comes with an outgoing mail tray, a lock with two keys on each door (keyed the same) and a movable red signal flag. All drop boxes are offered in powder coat white, silver, black, and green finish. These units can be mounted on the optional bolt mount style pedestals or with the in-ground style post pedestal. Thumb latches that are non-locking are also optional. All mail package drops are approved for USPS curbside mail delivery. Postal master arrow locks are not required for this particular unit.

Letter Boxes

Letter DropsOur high quality letter boxes which include a mail slot is our most popular wall-mount style collection box designed for the deposit of outgoing mail, available in both surface mount and recessed mount styles. These units constructed of heavy gauge aluminum are also referred to as our horizontal and vertical collection boxes which can be used in conjunction with our wall-mount horizontal and vertical mailboxes. Some of these letter boxes are available in USPS Approved style models for postal carrier key access as well as for private use/access which come equipped with a private master commercial lock. These letter boxes also include a heavy duty extruded aluminum door and extruded aluminum frame with steel compartments. Standard color finish is an anodized aluminum/silver finish although other powder coat color finishes are available such as gold, sandstone, dark bronze, black, and postal gray. Special engraving is optional.

Letter Locker Collection Boxes & Dvault Collection Drop Boxes

Other popular collection boxes will include our Letter Locker Collection Boxes and Dvault Collection Drop Boxes which are available in a wide variety of styles. Available are front loading and rear loading styles as well as models for both USPS use-access and for private use-access-(aka private party mail distribution, equipped with private locks). These high quality and high security collection box units are an ideal way to enhance value and convenience to an office building or commercial building’s mail system. They also provide added mail security in a time where security is at the forefront. Most of these units offered are freestanding pedestal type although a few wall mount style versions are also available. These collection box units are intended for busy areas and due to their size, they are large enough to accommodate heavy or high mail volume. These Letter Locker Collection Box models are able to hold USPS mail totes or bins for outgoing mail. Outdoor rated and recommended for outdoor use our Letter Locker Collection Boxes and Dvault Collection Boxes are constructed and manufactured out of heavy duty galvanized steel for added durability, making them weather resistant, corrosion resistant and rust proof. A wide selection of powder coated color finishes are also available allowing you to match your buildings décor. Letter Locker Collection Boxes and Dvault Collection Boxes are highly flexible and are found in government organizations, outside private postal centers, universities and colleges, schools, military bases, medical facilities, and in a wide range of other businesses and industries throughout the United States and North America.

Learn more about National Mailboxes

National Mailboxes manufactures and distributes everything from our outdoor pedestal style mailboxes to our wall mount horizontal style mailboxes. Other popular mailboxes include our apartment mailboxes, cluster box units-(CBUs), condominium mailboxes, high security mailboxes, vertical mailboxes, private locking mailboxes, neighborhood delivery and collection box units-(NDCBUs), letter boxes, curbside collection boxes, parcel lockers, single door residential mailboxes, front & rear loading mailboxes, aluminum & brass finish mailboxes, and many other USPS Approved style and Private Access/ Distribution style Mailboxes. Custom designed size and style mailboxes for private use is also an option based upon customer's request.

With many decades of industry experience while maintaining a high level of customer satisfaction, a wide selection of our mailboxes are offered and distributed to a broad range of businesses and industries throughout North America. Some of the business types that National Mailboxes supplies are comprised of apartment complexes, condominiums, large commercial/office buildings, real estate developers & owners, property managers, postal stores, U.S Postal Service, construction contractors, fortune 500 companies, small businesses, the military, government agencies, and universities/colleges to name a few. With many high quality mailbox models to choose from, National Mailboxes focuses distribution heavily on the United States (covering all 50 states) plus Canada and Mexico.

National Mailboxes showcases its product lines through an extensive and comprehensive Website. This website is extremely thorough, fast, user friendly, and above all safe and secure. All product information including current pricing is listed on this website. Every product detail including product description, product/item number, product specifications, and graphic product visuals/pictures and illustrations are showcased here. Many of our website users find this site to be an extremely useful tool as well as an important trusted source for commercial and residential mailbox information. These users are comprised of U.S Postal Service personnel, property managers, apartment managers, real estate developers, homeowners associations, architects, condo-board of directors, purchasing agents, small business owners, contractors, buyers, facilities management personnel, engineers, and government procurement specialists. In addition, National Mailboxes offers a best sellers brochure/catalog version with many pages of in depth product information including detailed product descriptions, product specifications, graphic pictures/images and current up to date pricing. For any assistance feel free to contact National Mailboxes knowledgeable and experienced customer support staff. They handle all inquiries, questions, or can provide a written quotation if requested. The customer support center can be reached at Toll Free 1-800-676-5161. (Monday-Friday 8am to 5pm CST)

Customers also commend National Mailboxes' quality control and order shipment practices and policies: Before orders ship out all merchandise must go through a rigorous quality control inspection process to insure that all mailboxes adhere to the strict quality control measures that we have in place. This insures our customers that they're newly delivered mailboxes will be of the highest quality and live up to the product warranties set in place as well as be free from any product defects. Coming from our transportation/shipping department, every order is guaranteed to ship out the most cost-effective way, unless otherwise specified by the customer. (Customer might have an account with a carrier and go Freight Collect) Our smaller size/weight orders will ship out via UPS Ground, FedEx Ground, or DHL Ground when applicable. All other larger size/weight orders will ship out by LTL Truck/Freight (Prepaid and Add), using the most cost-effective freight carrier as we have plenty of steep discounts with many of the major freight carriers. It is our transportation/shipping departments' call to make that decision.

Residential Mailboxes

Residential Mailboxes have been a popular product line and specialty offered by National Mailboxes for many years which manufacturers, supplies, and distributes a wide selection of residential mailboxes both indoor and outdoor models to residential home owners and home owners associations across the country. From single compartment residential mailboxes to multi-compartment residential mailboxes, there are many types, styles and models to choose from. National Mailboxes has been specializing in producing and distributing high quality residential mailboxes for many decades and has millions of residential customers in all 50 states. Primarily free standing single compartment outdoor pedestal style curbside locking mailboxes seem to be the popular choice among single family home owners, rural home owners, as well as other residential applications such as residential multi-family or multi-tenant situations and condominiums or home owners associations-(HOAs). In addition, many different wall-mount recessed style multi-family residential mailboxes are also available at National Mailboxes.

Locking Residential Mailboxes

Our superior quality locking residential mailboxes offer the security of locked mail and parcel storage with the convenience of a traditional mailbox. These units can hold over two weeks worth of mail equipped with a large storage capacity and have a spacious outgoing mail compartment as well. Constructed of heavy gauge anodized aluminum metal and available in a variety of powder coated finish colors and mounting options, our residential mailboxes are reliable, durable, secure, and attractive for the individual or home owner requiring a mailbox with enhanced security, expanded storage capabilities and durable, rugged, construction.

Curbside Mailboxes

Some of our popular pedestal style single tenant compartment residential mailboxes include our: private locking mailboxes, curbside mailboxes, roadside mailboxes, mail chest mailboxes, and rural mailboxes. Our standard features on these units include durable heavy duty rust free aluminum construction, an angled incoming mail slot which prevents theft, convenient outgoing mail shelf, and large mail/parcel storage capacity which can handle several weeks' mail. Our standard finish on many of the models is a clear anodized aluminum/silver finish, but many other powder coated color finishes are available. The USPS Standards for curbside mailbox placement are 42-48" from road surface to point of mail entry, and 6-8" from front face of curb to mailbox door. In-ground posts are available for in-ground style mount or bolt mount style pedestals are available if concrete foundation is already present. Post/Pedestal mount installation instructions are provided by National Mailboxes customer service/sales dept. On many of our curbside residential mailboxes special spreader plates are also available, which are mounted to the pedestal/post and allow multiple mailboxes to be mounted to one pedestal or post. There is a 2-wide, 3-wide, and 4-wide spreader plate which allows you to mount as many as four residential mailboxes to one pedestal or post. This is a very cost effective solution and eliminates having to order the separate posts or pedestals.

Multi-Tenant Residential Mailboxes

A few of our popular multi-family or multi-tenant residential mailboxes which also fall under the category of commercial mailboxes include our pedestal style: new high security front loading Cluster Box Units-(CBUs) and older rear loading style Neighborhood Delivery & Collection Box Units-(NDCBUs). Our USPS Approved Cluster Box Units have built in integrated parcel locker compartments for packages, an outgoing mail compartment, as well enhanced security features to meet or exceed the new postal regulation guidelines. Some of our USPS Approved wall-mount recessed style multi-tenant residential mailboxes could also include our new 4C High Security Horizontal Mailboxes, Standard Horizontal Mailboxes and Vertical Mailboxes. Front loading and rear loading models are available, standard finish is our anodized aluminum/silver finish which is corrosion resistant and rust-proof as well as wide selection of other powder coated finish colors. For multi-tenant mailboxes see commercial mailboxes for greater details and information.

Commercial Mailboxes

Commercial mailboxes have been the cornerstone to the National Mailboxes product line for many decades which supplies, manufacturers, and distributes a wide selection of multi-tenant commercial mailboxes. Both USPS Approved (for U.S Mail delivery) and private use/access style commercial mailboxes for private distribution. National Mailboxes specializes in both high quality outdoor mailboxes and indoor mailboxes and as well as free standing pedestal style and recessed wall mount style commercial mailboxes, which are offered and available to businesses & industries across the country. As a mailbox supplier and leader, we have been distributing our commercial mailboxes across the U.S, including all 50 states as well as North America-(Canada and Mexico) for several decades. Our outdoor and indoor commercial mailboxes which are geared for centralized mail delivery are ideal for apartment complexes, condominiums, commercial retail strip malls, office buildings, military bases, universities, schools, commercial buildings, cities, government agencies, housing authorities, post offices, and postal stores.

Pedestal Mailboxes

A few of our popular type outdoor free standing pedestal style commercial mailboxes include our: new high security front loading F-series Cluster Box Units-(CBUs) equipped with not only tenant doors but also includes built in parcel locker doors for packages and an outgoing mail compartment, as well as increased security features which meets and exceeds the new postal regulation standard. Also offered is our popular rear loading style neighborhood delivery & collection box units-(NDCBUs), front loading pedestal parcel lockers, free standing rotary mailbox enclosures, collection boxes, as well as many other models and styles to choose from. A few of our wall-mount recessed style commercial mailboxes would include our USPS Approved new 4C high security horizontal mailboxes, standard horizontal mailboxes, vertical mailboxes and apartment mailboxes, private access/use horizontal mailboxes for private distribution, rack ladder horizontals, brass mailboxes (horizontals), letter boxes, indoor parcel lockers, and letter drops/mail drops.

CBU Mailboxes

Our commercial mailboxes have exceptional durability and superior quality including all cabinets and hood seams on our high security CBUs that are robotically welded, designed to meet or exceed newest high security USPS standards, and have a durable, weather-resistant powder coat finish that resists scratching, vandalism as well as the outdoor elements. All units are constructed and manufactured of 300 series stainless steel and aircraft aluminum. The high security level built into these commercial mailboxes goes above and beyond, with customer and parcel doors constructed with reinforced corners and 360 degree wrap around hinges. The master doors are engineered to prevent prying with interlocking overlap seams and the solid aluminum mail slot frame design protects adjacent customer compartment and collection compartment. Units also come with the new USPS-1172 910 lock. The ease of use with these mailboxes is unparallel, especially with the new F-series high security Cluster Box Units which include master door gates that are hinged on the outer corners of the unit for easy access to all mail slots for mail carriers. The quick release door lock latch is another added feature. Each CBU has a compartment for outgoing mail collection and at least one parcel locker equipped with master arrow lock and 910 lock. Master Arrow locks are provided by the U.S Postal Service. Anchor bolt kits for pedestal to concrete mounting are also offered as an option. Installation instructions for CBU pedestal concrete mounting are also provided by National Mailboxes customer service/sales dept. at time of ordering. Our CBU mailboxes are USPS Approved by the U.S Postal Service for mail delivery as well as most of our other commercial mailboxes.

Apartment Mailboxes

Some of our multi-tenant wall-mount recessed style apartment mailbox units include our new USPS Approved 4C series High Security Horizontal Mailboxes and standard USPS Approved Horizontal Mailboxes and Vertical Mailboxes, Horizontal Mailboxes for Private Use/Access, Rotary Mailbox Enclosures, Parcel Lockers, Letter Boxes, Parcel Lockers, Letter Drops/Mail Drops, Vertical Collection Boxes, and Horizontal Collection Boxes. All units are available in front loading or rear loading style models. A wide selection of door compartment configurations are also available, everything from a 3-door vertical mailbox unit to a 60-door horizontal mailbox unit. Many of our horizontal mailboxes are designed for use in larger multi-family apartment buildings, high rise condominiums, office buildings, commercial buildings, dormitories, military bases, postal stores, etc. These commercial mailboxes are constructed of thick heavy-duty gauge aluminum. Front loading units require one compartment to be a master door for USPS use. Rear loading units have an optional rear cover and all units are recess-mounted.

All tenant doors come standard with 5 pin cylinder cam locks for maximum security along with (2) keys per door. Standard finishes are anodized aluminum/silver finish which is corrosion resistant and rust proof. A wide selection of additional powder coat finish colors is also available.

Commercial Mailbox Regulations

With the new postal standard regulation now in effect--(USPS STD-4C) which brings enhanced security, larger door sizes, integrated outgoing mail compartment and parcel locker compartments, the only mailboxes that are now compliant and mandatory on all new construction and major renovations are the 4C High Security Horizontal Mailboxes. These are the wall-mount mailboxes you have to get now if your application is for new construction or major renovations. All units are available in front and rear loading styles. The standard features on these type commercial mailboxes is that they have a durable, rugged, corrosion-rust resistant weatherproof powder coat finish which resists scratching and vandalism. All units are built of heavy duty gauge aluminum and 300 series stainless steel components for exceptional strength, corrosion proof, and top rated outdoor durability. The master loading doors are designed with interlocking overlap seams which prevent any prying. Other added features, include the quick release master loading door lock latch for easy access by Mail Carriers and the solid aluminum mail slot frame design which protects adjacent customer doors and collection compartment. The unique double-locking parcel locking mechanism design adds additional mail package security. The tenant door locks which are included consist of the new USPS-1172 910A lock with three keys. For tenant identification, standard number decals up to three digits or engraved identification up to six characters are available. Standard finish on the 4C High Security Horizontals is our anodized aluminum/silver finish, although other powder coat finishes are offered such as blonde gold, bright gold, silver speck, postal grey, black, dark bronze, white, forest green, and sandstone—(at no additional charge) Also included for installation with every 4C mailbox unit is our exclusive multi-unit connector kit hardware for easy installation.