Modular kitchen layouts are designed to maximize efficiency and functionality while utilizing space effectively.

Here are some common types of modular kitchen layouts:

1. Straight Layout: In this layout, all the kitchen components are arranged in a single straight line. It is suitable for narrow or small kitchens, ensuring easy movement and access to everything.

2. L-Shaped Layout: This layout features two adjacent walls forming an "L" shape. It provides ample counter space and allows for efficient work triangle formation between the sink, stove, and refrigerator.

3. U-Shaped Layout: This layout utilizes three walls forming a "U" shape, providing a lot of storage and countertop space. It is ideal for larger kitchens and allows for easy movement between workstations.

4. Parallel Layout: Also known as a galley kitchen, this layout features two parallel countertops with a walkway in between. It is an efficient layout for small to medium-sized kitchens, providing an easy workflow and maximizing storage.

5. Island Layout: This layout includes a freestanding island in the center, surrounded by countertops and appliances. The island can be used for extra workspace, storage, or as a dining area. It works well in larger open-plan kitchens.

6. Peninsula Layout: Similar to the island layout, the peninsula layout incorporates a connected countertop that extends from the main kitchen layout, creating an L-shaped configuration. It offers additional counter space and acts as a partial room divider.

7. G-Shaped Layout: This layout is an extension of the U-shaped layout, with an additional peninsula or countertop attached to the main layout, forming a "G" shape. It provides extra workspace and storage, suitable for larger kitchens.

These are some of the common modular kitchen layouts, but keep in mind that there can be variations and combinations to suit specific needs and available space.