Custom Mailbox Fabrication
Sheet metal mailbox is also known as letterbox, post box, mail slot, maildrop, etc. It is used to store your incoming emails and letters. These mailboxes are made from versatile metal materials. It includes aluminum, 10 gauze steel, stainless steel, etc. The chosen material ensures corrosion-proof, weatherproof, and scratch-resistant finish products.
Being a leader in this industry, KDM has profound experience and knowledge in producing any type of sheet metal mailbox. Choose from an array of unique mailboxes in a variety of mounting styles such as post-mount, wall-mount, and standing mailbox for apartments, residential, offices, etc.
We can custom sheet metal mailbox in a specific style and designs, finishes, and thicknesses you need. There is also a wide range of colors to choose from such as black mailboxes, white mailboxes, red white mailboxes, blue-white mailboxes, etc. We use advanced technology and processes in mailbox production like electrical sheet metal laser cutting, welding, sheet metal bending, polishing, and more. Let KDM custom your particular needs. Message us today!
Sheet Metal Mailbox Materials

Cast aluminum wall mount mailboxes are heavier than traditional aluminum. This is versatile, with low maintenance, and built to last.

KDM offers stainless steel mailbox interior and exterior powder coatings. It provides maximum protection from salty outdoor air or moisture.

Galvanized steel silver mailbox is corrosion resistant and can handle moisture well. It is an excellent material for a durable mailbox.

KDM brass metal mailboxes have an elegant and polished appearance. This is available in various sizes according to your needs. It can be wall-mounted, post mounted, or freestanding.

Zinc Iron Large Mail Post is zinc coated in order to avert disfavored rust and corrosion. It has a large capacity to accommodate numerous mail, letters, folders, etc.

KDM 10-gauze steel dropbox is the strongest drop box in the market. It comes standard with high-security locks ideal for high crime areas.
Advantages of KDM Sheet Metal Mailbox

The mailboxes made from sheet metals are highly durable. Adding them with various coatings will keep their structural integrity for an extended period- saving time and money for frequent replacements.

KDM sheet metal mailboxes have long service life without rusting and corrosion. They also have waterproof and weather resistance. Galvanized or coated metal sheets have more impact resistance.

Various metal-material mailboxes come with functional lock designs. They provide ideal security for letters or emails at every specific utilization. As sheet metals are waterproof, contents will never get tears.

Multiple metal mailboxes designs are available, depending on requirement applications. A wide range of shapes, sizes, painted colors, metal materials, and thicknesses are highly customizable.
Wide Range of Designs
Due to its rigid construction, beautiful shape, and design, the KDM sheet metal mailbox is known as one of our best-selling items. Whether you need classic style, vintage, or contemporary design in the small or large capacity mailbox, we will help you find the right product for your projects.
Moreover, KDM can design custom sheet metal mailboxes in different applications such as:
- Commercial areas
- Residential garden
- Offices
- Post offices
- Apartments, etc.


Complete Customizations
As your experienced manufacturer, we can provide a one-stop solution for your custom sheet metal mailbox requirements. You can choose the material whether stainless steel, aluminum, or steel. Request a custom surface coating for a smooth appearance and more corrosion-resistant features. We can also etch the logo on the mailbox surface to promote your brand.
Furthermore, we can bespoke mailbox color, sizes, and packaging. From initial design to the completion of your orders, we will never leave you. We work in our in-house manufacturing factory, guarantee cost-effective and high-precise production.
Choose KDM to Custom Sheet Metal Mailbox


KDM is a leading sheet metal mailbox supplier and manufacturer in China. Specialized in unique R&D, production, and sales of the durable mailbox. Our rich expertise allows us to deliver the finest products in the market and offer the best possible customer experience.
Equipped with high-tech machines and advanced techniques, KDM can produce extremely complex shapes and designs of mailboxes with exact accuracy and tight tolerances.
Let KDM support your custom sheet metal mailbox journey. We promise to do our best in upgrading and elevate your brand. Contact now!

Our sheet metal mailbox production process is automated and computer operated. It can produce highly precise products with high efficiency and high productivity. Our sheet metal services include but are not limited to:
- machining
- cutting sheets
- stamping
- bending, folding
- welding
- spinning
- assembling, etc.

KDM is composed of dedicated engineers and technicians who will work with you closely. We can recommend the right surface coatings for your sheet metal mailbox. You can also suggest the specific surface treatment you require to meet your needs. We introduce a broad spectrum of treatments such as;
- Anodizing
- Chrome Plating
- Polishing
- Brushing
- Powder Coating
- Laser etching
- Cleaning
- Vibration Polishing
- Deburring, and more.
OEM & ODM Sheet Metal Mailbox for Various Applications

The wall-mounted galvanized metal mailbox is suitable to use in outdoor applications. It has excellent weather resistance, impact resistance, and corrosion resistance. Also, it has large storage space, a lockable design, and is easy to mount.

The standing galvanized steel mailboxes are commonly installed on posts. They can be used outdoors due to their resistance to various outdoor elements such as rain, heat, dust, etc. Moreover, they are impact-resistant and corrosion-resistant.

The wall-mounted metal mailboxes without locks can be produced using stainless steel, galvanized steel, and other metals based on your request. They are weather-proof, durable, lightweight, and spacious.

The powder-coated metal wall-mount mailboxes can be printed with labels or logos by engraving, silkscreening, printing, and other processes. They can protect all letters, emails, newspapers, and other papers from outdoor elements such as dust, rain, moisture, etc.

The residential yellow sheet metal mailboxes are widely used in many apartments, offices, parks, etc. They are designed with 2 compartments, two drop-down doors, and stainless steel hinges. Some of their features include corrosion resistance, lockable design, and easy installation.

The architectural post-mount sheet metal mailboxes are made from heavy-gauge and high-quality galvanized steel. They are completely powder-coated to increase their corrosion resistance. Also, they have a reinforced body for rigidity and pre-drilled mounting holes.

The European-style sheet metal mailboxes add a modern touch to facades, front doors, offices, and houses. They are rust-resistant, durable, weather-proof, and spacious inside. Moreover, they have heavy-duty security and wall-mount installation.