The main difference between an executive desk and a credenza is their design and function. One is an imposing piece of furniture with a tabletop work surface, while the other is a secondary space or storage unit. Both can be combined, however, to create a functioning office centerpiece.
An executive desk is a large, solid desk, complete with ample surface area and storage drawers. These massive desks come in different configurations to add more space, including L-shaped or U-shaped units for additional surface work areas. The executive desk often takes up most of a room, creating a sense of grandeur and power.
A credenza is a cabinet-style storage solution with a usable surface area. Most credenzas provide a long flat surface for display with ample storage cabinets, shelves, and drawers below. This piece of furniture easily fits various office decors and styles. Often referred to as a sideboard, you can combine a credenza with a desk to create more storage and workspace options.