I have read somewhere that plywood should no longer have a 3mm joint but be glued together. Does anyone know if this is true? Or is the 3mm joint still applicable? Is there a difference between OSB and Plywood??
The thing is, I have used plywood because I want maximum stability for a sliding door. To avoid a gypsum joint just above the sliding door, I will need to place a 120 gypsum over the plywood which is also 120cm, so no joint displacement. The rest in the wall is cc90 and displaced joints. So my idea is to make the base as homogeneous as possible around this.
