JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. Add an Irregular Surface Load form Used to create an irregularly shaped area load on a mat foundation. Note: Irregular surface loads are for mat foundations only. Opens when Loads & Factors > Add Load for Mat Foundation > Irregular Surface Load is selected in the Main Navigation pane. Creating an Irregular Surface Load Parent topic: Loads & Factors group Related conceptsRelated tasksMat Foundations Creating an Irregular Surface Load