Another way to do wall panels on your cheap budget is to use pallets. You can usually get them for free from places like K-Mart, construction companies, newspaper and printing companies. You can either strip the planks off and build your own panels, or screw the pallets together to form wall panels.

Or check with companies that haul manufactured homes. They use wood panelling to transport the homes, and some of these companies throw away the panels after a home has been moved.

Moving companies like Roger Ward, Red Ball, Allied and others have large wood crates that get beat up over the years. At some point in time they fall apart. You could check with these companies to see if you can have the boxes that fall apart.