The inner brick is about thick in the lower corner and about thick in the next . The interior brick is about thick in the lower and about thick in the next .
Bata dalaman adalah kira-kira tebal di sudut bawah dan kira-kira tebal di sebelah. Batu bata dalaman adalah kira-kira tebal di bahagian bawah dan kira-kira tebal di bahagian seterusnya.