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Guard Boxes: What Are Prefabricated Guard Boxes Made Of?

Published 23 Dec 2023 · Updated 14 Oct 2025 · 3 min read

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What is the structure of a prefabricated guard box like?
A recommended seller of good-quality prefabricated guard boxes

Blog: prefabricated guard boxes

Wherever you are, you always need good security. The prefabricated guard box is another new innovation that meets the needs of guard box construction well. It doesn't take long to build, and without any masonry work you can have a high-quality guard box that performs just like a built one, is strong, and offers outstanding value. Today we take a closer look at the prefabricated guard box and recommend a seller of good-quality prefabricated guard boxes. Let's take a look!

What is a prefabricated guard box, and what is its structure?

The prefabricated guard boxes popular today are characterised by lightweight materials, easy relocation, good-quality materials, strength and durability, long service life and easy installation, making them very convenient to use. Construction varies from maker to maker; they are easy to maintain and quick and economical to build. A prefabricated guard box consists of:

  • A roof and walls that make them strong, durable and lightweight
  • Sliding windows and doors that are convenient to use
  • A counter for placing items and writing documents
  • A floor made from easy-to-clean material
  • Interior light switches and a fan that are convenient to use
  • Waterproof sealant applied along the joints so water does not leak in

Recommended popular, good-quality prefabricated guard boxes from SBT Worldwide Product

The popular prefabricated guard boxes and knock-down guard boxes from SBT Worldwide Product share these features:

  • A galvanised steel structure with a paint finish and thermal insulation panels that maintain the temperature very well
  • A half-glass door that is easy and convenient to use
    Left-right sliding windows that are strong, durable and easy to open
  • A Viva board floor covered with plastic flooring that is easy to clean
  • Built-in interior lighting with a breaker panel, switches and sockets at the connection points, and an orbit fan included

    The popular models we recommend today come in 3 sizes, as follows:
  • Model G1 1.2 x 1.2 m
    This model takes the container office unit and adapts it into a good-looking, quality prefabricated guard box or knock-down guard box that makes a good first impression on people arriving at the site and shows care for the work and the staff's workspace. It uses PU foam thermal insulation, which protects well against heat, ventilates well and is comfortable to be in, suitable for users of all levels. It can be moved between locations quickly and conveniently, and is suitable for 1 staff member.
  • Model G2 2.3 x 2.3 m
    Similar to the previous model but larger, suitable for 1-2 staff members, or an internal toilet can be added for even greater convenience, making a very good impression on the staff who use it. This model can also be moved between locations quickly and conveniently, because it is lightweight.
  • Model G3 3.0 x 3.0 m
    The last model, the G3, is an even larger prefabricated guard box or knock-down guard box, making it more comfortable to use, spacious, able to store plenty of items and with more usable space. It is suitable for 1-3 staff members, and can be fitted with an internal toilet or additional facility rooms.

Whichever model you choose, it is a prefabricated guard box or knock-down guard box that performs well, with a strong, safe structure that stands up to both sun and rain. It doesn't get hot in the sun and doesn't fear the rain, because it is designed to prevent water leaks very well, and it uses PU foam as thermal insulation, so it is comfortable to be in and work goes smoothly without problems.

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