The best place to find designs for deck and porche plans would be from a local contrator that is qualified to work with wood, you could also ask your family and friends for ideas.
There is an "interactive CD ROM" that lets you design your decks and porches and you can purchase them from DecksUSA, which is an online website. They ahve a phone number where you can call them and and ask questions about the CD and how you can design your own deck and porch.
You can find house plans with decks on various platforms. Online websites specializing in home designs, such as Houzz, Architectural Digest, and Pinterest, offer a wide range of house plans featuring decks. Additionally, architectural magazines, local design firms, and real estate websites often showcase such plans. Customizable home design software also allows you to create personalized house plans with decks.
You can find plans and designs for decks with deck benches online. Http://www.gardenstructure.com/gallery/section/deck_designs is a good place to start.
You can look at store's websites for pictures - Lowe's, Home Depot, Walmart, or KMart. Many times there are also advertisements in the local paper that have pictures. You can also do a search and see many pictures for decks and porches.
While I am sure that these plans do exist in PDF format, I cannot find any online. I can find pictures of CAD files, and drawings of decks that you can have mailed to you, but I was not able to find any PDF plans for decks.
Deck Plans. com have all the designs and plans for the decks. Try to visit the site for more information's you want to have and contact their personnel if needed.
http://www.hgtv.com/topics/decks/index.html has a bunch of different ideas and designs for decks. Decks.com also has free deck plans available to be mailed to you.
At decks.com you can find everything you need to plan a deck. You can customize your search to find whatever you want. You are in complete control on decks.com.
If you go to, (http://www.todaysplans.net/free-deck-plans.html), they have a variety of magnificent deck plans that you and your partner can do yourself.
Plans for second floor decks can be found at this web site: www.decks.com/deckplans/highelevationdecks.aspx. They have many types of plans for different house types.
the best thing to do would be phone up the supplier for msc sinfonia decks and ask them to send you a selection of designs and choose the best one from there.
Some nice websites to look for decks designs are www.gardenstructure.com or www.hgtv/patio and decks.com. Both websites have pictures and instructions that will help you in your remodeling plans.