So, we have a lower binder and the floor lags are installed. First you can estimate the required number of racks on the wall, for this you need to know the step of the racks. I chose a step of 600mm between the centers of the racks (for two-story houses, a step is 400-600 mm for a standard width of the insulation). With simple mathematical operations, you can find out how much racks will be required on the wall. For racks, I used the most common solution — a board 150mm x 50mm. In general, the whole frame except the floor lag and rafters was assembled from such boards.
