Deck Visualizer App. Choose different composite deck and railing colors to see how it will all look together. Use Fiberon’s Outdoor Living Visualizer tool and find out..Click a Deck Name from the list to the left to load it. Click the red X to delete the Deck. Click on the blue link to get the url to share your deck with a friend..The price is right, but is freeware actually useful to deck builders?.Free Deck Design Tool. Use Fiberon’s deck designer software to create custom D layouts of your next outdoor livinge. Start designing your new deck project today..