Box guttering what is the minimum depth and width.

The recommended dimensions for box guttering in terms of depth and width can vary depending on the specific requirements of the building and the local climate conditions. However, as a general guideline, the depth of a box gutter is typically between 100mm to 200mm, and the width is usually between 200mm to 400mm.

For larger commercial or industrial buildings, the depth and width of the box gutter may need to be increased to accommodate a higher volume of water runoff. It is best to consult with a guttering professional or engineer to determine the most appropriate dimensions for your specific project.