It is often found

Another thing that is worth paying special attention to is an empty space that will be located under the porch site. It is often found that the internal space of the site serves to store all, economic trash, and that is why all sides of the site must be sewn up by a trimmed board, avoiding an unclosed space. But if you do not need to sew the bottom of the porch, then you need to connect all the supporting parts with the help of a board, to give the construction of additional stiffness.