Big hammer is a website that specializes in deck designs. Not only will they have a variety of designs to choose from, they can lead you in the right direction as to which design best fits which situation in regards to your home.
There are many websites that offer outdoor deck design ideas on the internet. Some websites that offer these ideas include www.deckplans.com and www.decktech.com.
A good place to go for deck design and DIY tips would be HGTV website. Its for the home and garden television network, they offer free tips and photos and ideas.
There are many books available on patio and deck design ideas that can be purchased from amazon.com. I would recommend searching ideas online or other sites as this information is free and you will find a lot of sources to refer to.
The internet is an excellent place to look for sites to design your own deck plans. Sites you may want to consider looking at are: timbertech.com, deckplans.com and bighammer.com. Sites like these may even offer free design tools for your use.
The best one-source place to find patio deck ideas and designs would be to look www.hgtv/patio deck and design ideas. They offer videos and pictures to help you with the project.
There are a wide variety of sites that offer free information on designing a deck. There are sites such as Lowe's how to sites as well as the DIY sites. These will provide you with a wide variety of options as well as step by step instructions.
Titanic deck plans can be found on-line on such sites as e-bay. Some websites such as HotSpring.com offer free design tools that let you plan your own deck and then request a quote.
The HGTV website has an entire section on deck designs. They have pictures of decks and landscaping for decks and patios. The DIY network also have a number of deck designs the pictures on both sites can give you great ideas.
There are many books on deck design. I liked "The Deck Book: Inspirational Design Ideas" by Melissa Cardona on amazon or check your local library. Intructable.com also has a nice design for an octagonal deck.
Homedepot.com and lowes.com have deck plan generators for free to use, have fun with it.
Better Homes and Gardens online has great design ideas for platform decks. They can be found at the website http://www.bhg.com/home-improvement/deck/ideas/. Also, local contractors can offer plans at a cost.
Deckplans.com have everything you need especially the pictures when it comes to deck plans design ideas. It have all the designs for all types of people.