We select material for the floor. The pitch of stacking beams depends on its thickness — with a board thickness of 40 mm, the step of the beams will be up to 800 mm. Beams before laying should be impregnated with an antiseptic. The place of work is removed from construction debris, and the beams are laid in the intended places. Their installation is carried out strictly in terms of level. In places of drawdown, beams must be leveled with linings. Lining are made of solid wood or plywood, and must be attached to the beam with self -tapping screws.