12 Inch | 6" Top x 12" Bottom x 8" Slant 

14 Inch | 7" Top x 14" Bottom x 9.25" Slant 

16 Inch | 9" Top x 16" Bottom x 10.25" Slant 

18 Inch | 10" Top x 18" Bottom x 12.25" Slant 

20 Inch | 11" Top x 20" Bottom x 13.25" Slant