Decks, Porches and Pergolas Designing and Manufacturing Decks and Porches PRE-BUILT DECKS YOU PICK UP All decks are made of pressure-treated southern yellow pineFor composite deck boards and step treads add 35% to deck price.Custom designs are availablePrices below include 4 steps and safety hand rails, $55 per extra step SizePriceSealer and Stain 5 X 5$750$654 X 6$750$654 X 8$850$756 X 8$1195$956 X 10$1595$1056 X 12$1795$1258 X 12$2100$15010x12$2400$17510 X 16$2600$250 Delivery charge for prebuilt decks are 10% of list price ($100 minimum) $4 mile extra beyond 10 miles. Please call for Pergola pricing. Mobile Home Deck/Porch