According to best practices, what should be done first when digging pier footings?

When digging pier footings, cutting the sides first is important for several reasons. Starting with the sides allows for better control over the excavation process and helps to establish a clear, stable perimeter for the footing. This approach helps in maintaining the integrity of the surrounding soil and reduces the risk of collapses or slumping while digging the central portion. Additionally, cutting the sides first helps expose any underground utilities or obstacles that may affect the design and placement of the footings, ensuring that they are safely and accurately positioned. It also facilitates the process of removing spoil, as this can be done more efficiently once the sides are established and secure.

Overall, prioritizing the cutting of the sides aligns with best practices in excavation, promoting both safety and precision in foundation work.