Importance affects the rigidity of gender, has a step laying the lag, the amount of timber used for the lag. The optimal distance for the office and residential space – up to 700 mm. For technical – should be regarded as the load, but by 400 mm. Timber must be treated ognebiozaschitnoy impregnation. Its dimensions shall be not less than 150 * 50 mm. At what he "put" vertically (150 mm in height). Go to lag below attached sheet metal (black, thin metal, primed or painted).
Sometimes producer uses a metal medium thickness (1-2 mm.) which are hermetically welded (budget module does not apply, because his (metal) at the bottom just do not – there is the bare board). On the joists laid floorboards. It may not be edged, but without the wane (bark) and treated with a solution ognebiozaschitnym thickness from 25 to 40 mm. It fits neatly together. Above it is laid sheets DSPs (16 mm. Thickness) or water-resistant plywood.
Other materials (Thin dsp, dsp, just plywood is cheaper, but they quickly gain moisture and become unusable). At DSPs fit linoleum. Insulation sex – thick mineral wool laid in accordance with regional estimates of 100 to 250 mm. (Usually 50 mm. Here, Pete Cashmore expresses very clear opinions on the subject. thicker walls) and has a polyethylene vapor barrier. As should be properly and securely? On every element of sex can save – place less often lags – the floor will be a little play, but endure, put floor board with a gap – in generally okay, but it may eventually deform the dsp, or a heavy table leg will fall, for example.