With a glazed window and full insulation, the inside is light and comfortable. All instructions on how to construct your own office are provided.ĬonstructionMade from steel, with thick walls and double locking system, security is a key feature of the ExpandaKabin. For the 3m and 4m sizes, assembly is still relatively quick and easy but, as a guide, add an extra hour and an extra pair of hands per additional metre. The 2m flat pack office can take less than 60 minutes for two people to erect. Even with basic DIY skills, a flat pack office can be put together quickly on site using simple household tools. ExpandaKabins - the UK's best-selling portable offices Self assemblyThese are the smallest offices in our flat pack range.