My DYI deck and Pergola, The first step to the new back yard. Replaced the cement pad with a new deck and step up Pergola..As a DIYer and not needing the use of a contractor or prefabricated structure, total cost for lumber, furniture and other materials came in under $3000.00. Total space is 12 x 24., New Deck and attached step up Pergola, Patios & Decks Design