Building a barn can pose a lot of problems, particularly if the land on which you are building is not ideal. Formatubes can help to resolve some of these issues, making them a great alternative to wooden support structures. Here are the three main advantages of using formatubes when building a barn. 1. Soil Integrity Barn poles bear the majority of a barn's weight, creating a strong and stable structure. Unfortunately, the poles must be driven into the ground, which can have a negative impact on soil integrity.