Postal boxes, sometimes called mailing boxes or postal trucks, are simply the ideal packaging solution for sending single items safely from place to place. And when you are shipping a group of similar items to just one customer, postal trucks are also used. The boxes are typically made of high quality corrugated paperboard with laminated insulating foam at the bottom layer. This foam is very helpful in keeping your fragile items in good condition and eliminating any form of damage.


Large letters or packages often need to be shipped through a special type of shipping called a Parcel Force One (PFO) cardboard boxes. PFO’s are very large vans which can only carry a very large quantity of freight or package. As a result of these heavy vehicles are often outfitted with facilities like air-tight compartments, where bulky items are separated from other items to prevent damage to the vehicle while in transit. Other precautionary measures taken by many companies include securing the top of the parcel box to prevent potential leakage. Insulation also comes in the form of foam inserts that go between the cover and the cardboard layers to protect the contents. The foam insulators help prevent heat transfer and thus reduce the temperature inside the box during shipping.


Standard postal boxes are available in many standard sizes, which are great for addressing huge volumes of shipments. Most boxes today have a transparent plastic lining which makes it easy to identify the contents, particularly if you are mailing something with a sensitive paperboard coating. You will find that most standard boxes are constructed in a slightly inward shape to accommodate for the weight of the letters inside. These are also great for short and long distance mailing as the heavier the letters, the larger the size of the box needs to be. Standard cardboard postal boxes have virtually no padding, which is a good thing if you want to create an unboxing experience on site.


There are three major types of postal boxes which include a single sided ones, double sided ones, and layered cardboard ones. A single sided box has a flat bottom which has two flaps that allow the letters inside to slide in and out easily. Double sided boxes on the other hand, have their bottom flaps facing outwards so that the contents can be seen from both the top and the bottom. Finally, layered cardboard boxes consist of two cardboard layers with the top layer made of thicker material than the rest.


When it comes to choosing the right size, you will need to consider both the weight and the dimensions of the package. Smaller sizes tend to be lighter and easier to handle, but they do not ensure a firm and secure packing. Furthermore, standard sizes are available in single wall and double wall cardboard options, allowing you the freedom to choose the best size based on your specifications. Postage for overseas destinations requires post offices to send packages in single wall units, as these are the only sizes that can be sent directly from Canada to the USA. If you are unsure about what type of postal box will be suitable for your needs, you can contact a company specializing in post office boxes or simply ask a clerk at your local post office.


As a general rule, large letter boxes are best used for large parcels while small parcel sizes should be used for smaller items like magazines or greeting cards. Large parcels require thick paper and extra strength, while small parcel sizes can use regular sized boxes without problems. Before ordering any type of postal boxes, however, you should ensure that you will be able to receive delivery within a reasonable timeframe.