In general, excavation of dirt on the ground is required to build a structure either above or below ground. Moreover, there are no advertisements! Look into VIP membership. Depending on our needs, the excavation might be shallow or deep. However, when deep cuts are made in the earth, the soil from the excavated area's sides may collapse owing to inadequate stability. This can cause problems for any future construction activities or improvements that are planned for this site. The depth of an excavation should be sufficient to allow for proper support of the roof or other load bearing structures used in its construction. Excavations should also be deep enough to accommodate all the materials needed for their completion. For example, if rock is to be removed from a trench, then some form of screening should be used to prevent large rocks from being dropped into the excavation. People often think that they do not need to dig very deeply because they will only be building a wall a few feet high, but in reality, anything more than a couple of feet requires excavation. The deeper the better because it allows for stronger materials to be used in your construction project. Also, the more material that is removed the less stable the site becomes- requiring additional supporting measures to be taken. Sometimes people assume that digging down will help them build a strong foundation, but this is not always the case. If you are digging down to build a basement, then the deeper you go the weaker the foundation will be. You should keep this in mind when deciding how deep to dig.