What kind of frame will be constructed around the top of the silt fence?

A wood frame is constructed around the top of the silt fence primarily for stability and support. This frame helps ensure that the silt fence remains taut and effective in controlling sediment runoff. Wood is often readily available, relatively inexpensive, and provides the necessary rigidity to withstand environmental factors such as wind and water movement. The use of a wooden frame also allows for easier installation and adjustments as needed, which is essential in maintaining the integrity of the erosion and sediment control measure. Other materials, while potentially suitable, may not offer the same balance of strength, cost, and flexibility that wood provides in this context.