Light steel keel sticking wood finishes is not to block the blockboard?
Not necessarily Oh, you can also use the European pine board
Light steel keel can be leveling, but directly on the installation of wood surface will be a problem, with adhesive contact surface easy to fall off, with nails fixed wood surface difficult, if used as a wall strength is also a problem.
Do the purpose of grass-roots two,
One is leveling, to ensure the completion of the flatness of the surface;
The second is to facilitate the surface layer fixed.