Is there a computer program that can help me design a deck ? It's three tiers high .
There is a computer program that can help you design a deck. One of them is a 3D Deck, which loads fast and since it interfaces with the CD in a drive, it will use very little space on the computer. Read more at http://www.ehow.com/list_7169755_programs-build-deck.html.
Yes, Home Depot has one you can buy.