It should state 1.75" for the third style of cabinet. I've written the full description below to fix the error: Dimensions: 58" wide x 84" high x 32" deep • Doors include charcoal filter vents • Doors swing a full 180 degrees on piano hinges • Cabinet has a center divider • Each cabinet comes equipped with 24 drawers • Drawers extend 28" on Standard-Duty suspensions. • Each Drawer is 1.75” high • Each drawer can support no more than 90 lbs evenly distributed.

The are museum quality artifact storage cabinets which can only be done in metal. Wood is not applicable to museums as it holds pests, off-gasses glue, etc. These cases should be Heavy-duty welded steel construction, .036” (20ga.)for sides, top, and doors, and .048” (18ga.) for back, bottom, and reinforcing channels. Trays made of .036” (20 ga.) cold rolled steel

Museum Support center indicates that this is a typo. This is supposed to say five (5) drawers at 15.75" with a weight capacity of 250 pounds each.