Shipping container architecture is a form of architecture that uses steel intermodal containers (shipping containers) as the main structural element. It is also referred to as cargotecture, a portmanteau of the words "cargo" and "architecture", or "arkitainer". This form of architecture is often associated with the tiny house movement as well as the sustainable living movement.
The use of containers as a building material grew in popularity due to their strength, wide availability, and low cost. They are also more eco-friendly.
Due to their shape and material, shipping containers are highly customizable and can be modified to fit various purposes. They are modular, meaning all shipping containers are the same width and most have two standard height and length measurements. Thus, they can easily be combined into larger structures that follow modular design. This simplifies design, planning, and transport as the containers can interlock for ease of mobility during transportation. Structural construction is completed by simply interlocking them. Additional construction is as easy as interlocking or stacking more containers. They can be stacked up to 12 units high when empty.
Because shipping containers are designed to be stacked in high columns and to carry heavy loads, they are also strong and durable. Shipping containers are designed to resist harsh environments, such as on ocean-going vessels or sprayed with road salt while transported on roads. As they already conform to standard shipping sizes, pre-fabricated modules can be easily transported by ship, truck, or rail.
Despite that welding and cutting of steel is considered to be specialized labor, which can increase construction expenses, shipping container construction is still less expensive than conventional construction. Unlike wood-frame construction, attachments must be welded or drilled to the outer skin, which is more time-consuming, and requires different job site equipment.
As a result of their widespread use, new and used shipping containers are available globally.