Do it yourself wood pergolas are often cheaper and save thousands of dollars, as compared to installing with the help of a contractor. Is does not need carpentry expertise and if a well equipped kit is purchased a pergola can be installed within as little as three days. Youjust needs to take the correct measurements of the posts, choose the correct location and start installing. Remember, precautionary measures should be taken so that you don’t dig into underground utilities like electric cables or plumbing pipes. Triangular, circular or rectangular pergolas can be built. The satisfaction and end result you get will be worth the effort.