At the bottom right corner inside the freezer interior is a step  to accommodate the compressor hardware, the interior dimensions and compressor step dimensions are below:
 

 Capacity Interior Dimensions Compressor Dimensions
 3.5 cu ft Length: 15.4"
Width: 17.17"
Height: 27"		 Length: 15.4"
Width: 7.68"
Height: 8.27"
 5.0 cu ft Length: 32.5"
Width: 28.6"
Height: 22.1"		 Length: 32.5"
Width: 7.75"
Height: 8.5"
 7.1 cu ft Length: 29.25"
Width: 26.25"
Height: 16.62"		 Length: 29.25"
Width: 9.5"
Height: 8.5"
 9.2 cu ft Length: 37.5"
Width: 17.5"
Height: 25.75"		 Length: 37.5"
Width: 8"
Height: 9"
 11 cu ft Length: 35.75"
Width: 29.37"
Height: 20"		  
 13 Length: 49.75"
Width: 20.5"
Height: 28.25"		  Length: 49.75"
Width: 9.62"
Height: 9.62"