Space planning is a fundamental skill in interior design trade practice. It involves organizing interior areas to ensure efficient movement, comfort, and functionality. Regardless of how attractive an interior may appear, poor space planning can negatively affect usability and user experience.
Trade-based space planning begins with site assessment. Interior designers measure the space accurately, identify structural elements, and note constraints such as columns, windows, and doors. These factors influence layout decisions and help designers develop realistic floor plans that optimize available space.
In residential interiors, effective space planning ensures that rooms are comfortable and adaptable. Open-plan layouts, for example, allow flexibility while maintaining visual continuity. In commercial interiors, space planning directly affects productivity and customer flow. Offices require clear circulation paths and ergonomic workstations, while retail spaces rely on strategic layouts to guide customer movement and enhance product visibility.
Ergonomics plays a crucial role in space planning. Designers must ensure that furniture spacing, working heights, and circulation clearances align with human comfort standards. Poor ergonomic planning can result in discomfort, inefficiency, and even health issues, especially in offices and kitchens.
Modern technology has enhanced space planning within the trade. Computer-aided design software allows designers to test layouts, simulate movement, and visualize spaces before construction begins. These tools help identify potential problems early, saving time and cost for both designers and clients.
Conclusion: Space planning is the backbone of professional interior design practice. It ensures that spaces are practical, comfortable, and efficient. As a core trade skill, proper space planning transforms interiors from visually pleasing environments into functional spaces that truly serve their users.

