Replacement padio deck costs

[70charginglizard]

 my Rambler home has one of those little (new contruction) 10 X 10 foot padio decks on it that I'm considering expanding out next summer. I figured that I'd pull all the old deck boards off and replace them with new ones when I expand outward but I think the existing support structure underneath is reusable I'll just expand out for the new support structure Probably another 10 feet out and 10 feet the other way. I will probably have to get a home improvement loan to do this so what do you guys think the cost of a project like this might cost me? Just curious at what I'm looking at before I get into it. Of coarse it will need new banister fencing around it and an awning over it too and a step down to the concrete padio adjacent to the deck area. (I'm figuring on doing the labor myself)

[Big Lebowski]

  "To za lumber yard!!" Forget about real redwood unless you're rich. A plastic 16-18' deck board is around $30-50 each. Ouch.

[Silver R/T]

lowes has pretty good how-to's and gives you estimate on materials right there.
http://www.lowes.com/lowes/lkn?action=howTo&p=Build/BldDck.html&rn=RightNavFiles/rightNavHowTo#1
We have deck from composite plastic/wood it will outlast pretty much anything else out there. Rails are aluminum and plastic coated. Not worrying about maintaining it every season.

[NHCharger]

Yeah, go to HD or Lowe's. All the lumber yards are fighting for business and they'd be happy to give you a free estimate. Depending on materials your looking anywhere from $15.00 to $30.00 a SF so you need to specify what kind of materials you want.