Planning on building a lean to shed, with a stud walls from 4*2 then clad with OSB then Feather edge, When researching partition spacing everywhere seems to specify either 400/600mm which would be fine if using plasterboard, but sheet OSB is 1220*2440mm would this mean on site you have to trim every board to line up fixings on studs / rafters? I will be spacing @ 610mm so save the hassle of cutting each board………what is typically done in the trade?