On the picture below you can see the recommended scheme of installation of floor covering, and also admissible distances between the supports for the panels of different types. The covering type 2F is intended to use with an additional layer of a construction material, for example, under panels, board covering mounted at the right angle to the beams of overlapping, or a concrete coupler. Panel type 1F is used as the combined flooring with a under layer and additional layer is not necessary. Edges of panels should always be connected with groove and tongue or lean on strutting section 38х38mm, nailed to bearing beams. Panels should be mounted in order that shaving fibers on a panel surface were at right angle to bearing beams (the direction of fibers of a shaving on a surface of panels OSB is marked on a camouflage stamp). Each panel should lean, at least, against three beams, and, in case of groove and tongue connections, the side marked as "this side downwards", should be faced to bearing beams. Edge joints should lean against bearing beams and should be mounted in chessboard order with shift, at least, on two bays. Flooring panels should be fixed with a clearance of 3mm on end faces of all sides.