(1) compartment; For 12" x 20" steam table pans; Fully insulated and gasketed for superior heat retention; Holds(1) 8" deep pan, (2) 6" deep pans, (3) 4" deep pans, (4) 2 1/2" deep pans (not included); Also hold 1/2 and 1/3 size pans (not included); Interior dimensions are 13 1/4"W x 21"D x 14"H; Dishwasher safe; NSF certified