Final Project Cost

I'm still not sure exactly how large I'll be making my final project, but I would estimate that it will end up being between 3 and 4 feet long. That being said, that will be where the most money comes from because although it'll be long, it'll also be very short. I have looked up online at on Home Depot's project wood area and will not be debating which wood to go with once I go to pick it up.

http://www.homedepot.com/b/Lumber-Composites-Plywood-Project-Panels/N-5yc1vZc7hm

For everything I'm hoping / expecting to spend less than $80 total. At least that is my goal, if I have to alter dimensions based on that, I will, otherwise I can't fully feel out how much it is going to be until I go and ask someone when at the store. I also currently don't have a TV so it is making it a little more difficult deciding how long everything needs to be.

Thanks
Miranda Reinhardt