G-Shaped Kitchen. The G-shaped kitchen is a version of the U-shaped kitchen layout, with the same amount of counter space and storage options that surround the cook on three sides. However,the G-shaped kitchen floor plan includes a peninsula or partial fourth wall of additional cabinets. A G-shaped kitchen is the term used to describe a cabinetry configuration that has a preparation-area peninsula and four walls of storage. G-shaped designs also increase the number of base cabinets that can be included which increases storage space while streamlining the cooking area.