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.
There are quite a few websites that offer different plans and designs for decks. Some of these are: www.decks.com, www.deckplans.com, www.idea-for-deck-designs.com and www.decknow.com
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.
Deck plans from Menard's can be viewed at the Menards official website. This website includes various deck designs including how to plans for building a variety of decks.
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.
The best websites to look at for designs of decks would be free deck plans. They have different styles and desings and they give you the amount that it iwll be and how much material you will need.
There are sites onloine dedicated to offering plans for decks. Two of these are www.deckplans.com and www.menards.com. Both sites offer a wide selection of one and two level decks in a multitude of designs.
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 homedecks.com you can buy plans that cost from $9.95 to $17.95. There are many pictures of all the decks. At deckplans.com you can get free deck plans. They have rectangular, octagonal, splash decks and side pool decks.
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.
I would suggest that you may visit deck Plans. com for a free pool deck design. They offer free designs of all kinds of decks. It is the most reliable site I know so far.
You can get free deck plans at decknow.co. There are many free deck plans for wood decks. You will also see pictures of the various wood decks. All the instructions are there and easy to follow. There is also some good free deck plans at free-deck-plan.html. House plans and more is another good site with free plans for wood decks.
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.