Paul Ryan teams with homeowners to install a radiant heat subfloor.
DIY Network has instructions on how to install a plywood subfloor so that it is level, well-insulated and free of annoying squeaks.
DIYNetwork.com has photos and = step-by-step instructions on installing tongue-and-groove subflooring planks.
DIYNetwork.com explains how floors are built and what materials are commonly used in their construction.
Certain hardwoods require certain types of installation.