They already had a screened porch and an open deck, but both had seen their day. The wanted a larger deck with a pergola and a new screened porch. Composite was used for the open deck to provide a very low maintenance structure. Making the deck larger They already had a screened porch and an open deck, but both had seen their day. The wanted a larger deck with a pergola and a new screened porch. Composite was used for the open deck to provide a very low maintenance structure. Making the deck larger and adding the flared stairs and the pergola really added some balance and made all the difference.