Number of layers (specification):

Length 120 width 50 height 60 two layers

Length 120 width 45 height 60 two layers

Length 120 width 40 height 60 two layers

Length 120 width 35 height 60 two layers

Length 120 width 30 height 60 two layers

Length 110 width 50 height 60 two layers

Length 110 width 40 height 60 two layers

Length 110 width 35 height 60 two layers

Length 110 width 30 height 60 two layers

Length 100 width 50 height 60 two layers

Length 100 width 45 height 60 two layers

Length 100 width 40 height 60 two layers

Length 100 width 35 height 60 two layers

Length 100 width 30 height 60 two layers

Length 90 width 50 height 60 two layers

Length 90 width 45 height 60 two layers

Length 90 width 40 height 60 two layers

Length 90 width 35 height 60 two layers

Length 90 width 30 height 60 two layers

Length 80 width 50 height 60 two layers

Length 80 width 45 height 60 two layers

Length 80 width 40 height 60 two layers

Length 80 width 35 height 60 two layers

Length 80 width 30 height 60 two layers

Length 70 width 50 height 60 two layers length 70 width 50 height 60 two layers

Length 70 width 45 height 60 two layers

Length 70 width 40 height 60 two layers

Length 70 width 35 height 60 two layers

Length 70 width 30 height 60 two layers

Length 60 width 50 height 60 two layers

Length 60 width 45 height 60 two layers

Length 60 width 40 height 60 two layers

Length 60 width 35 height 60 two layers

Length 60 width 30 height 60 two layers

Length 50 width 50 height 60 two layers

Length 50 width 40 height 60 two layers

Length 50 width 30 height 60 two layers

Length 30 width 20 Height 60 two layers