Stone Wool Absorption

[larvicide]

Hi,

I want to make my own bass trap and i can not find rock wool in 10 cm thickness. In terms of absorption quality is there any difference to stack two 5cm rock wool plates together to form a 10cm rock wool thickness ? It's hard to find 10 cm rock wool really

Thanks..

[witzendoz]

Stack 2 x 5 cm sheets, this is normal.

Alan.