Oversized, factory balanced, refrigeration system holds 33°F to 38°F (.5°C to 3.3°C) for the best in food preservation. Two (2) heavy gauge stainless steel ramps (one per door). Designed to accept roll-in racks (inboard castors) with maximum dimensions of 27"L x 29"D x 72"H (686 mm x 737 mm x 1829 mm)(supplied by others). Three (3) lifetime guaranteed, cam-lift hinges. Full 180° open capability with a stay open feature at 120°. The entire cabinet structure and solid door are foamed-in-place using Ecomate. A high-density, polyurethane insulation that has zero ozone depletion potential (ODP) and zero global warming potential (GWP).