BLOCKING & BACKING EVERYWHERE! 08/15/2017 Is all that blocking needed after the old floor comes up? YES! When the home was built, the subfloor had support on all edges and ends. The walls are built on top of the sub floor. Walls that parallel the floor joists have no support other than the particleboard between joists. If the particle board goes soft, the wall sinks through the floor! when the old particleboard is cut out, new support is needed at all new ends and edges, for the new plywood flooring. The walls want support too! the
Is all that blocking needed after the old floor comes up? YES! When the home was built, the subfloor had support on all edges and ends. The walls are built on top of the sub floor. Walls that parallel the floor joists have no support other than the particleboard between joists. If the particle board goes soft, the wall sinks through the floor! when the old particleboard is cut out, new support is needed at all new ends and edges, for the new plywood flooring. The walls want support too! the