Here’s the view of Johnston Commons from under the porch of the Johnston deck and open porch project featured here. Its a great view overlooking Des Moines and its western suburbs. Azek Silver Oak PVC decking with Westbury aluminum railing between TimberTech Radiance posts. Cultured Stone columns frame the porch. Click here to see a before/after collage on our Facebook page showing the transformation from trash to award-winning project. Decks and Porches by Archadeck of Central Iowa.