Add Yahoo as a preferred source to see more of our stories on Google. A man installing drywall - Georgepeters/Getty Images Whether you're repairing a wall with water damage, covering up an outdated ...

While there is no such thing as a perfect building material, drywall comes pretty close. For one thing, it's dirt cheap, costing about $7 for a 1/2-in.-thick 4 x 8 panel. It's also DIY friendly--about ...