Interior designers meet with clients to learn what they need, want, and can afford. They create plans for room layouts, furniture placement, lighting, colours, materials, and finishes. They may prepare sketches, digital drawings, and presentations to show ideas clearly. They often work with architects, contractors, suppliers, and other trades people to make sure the design can be built safely and on time. They may help choose furniture, fixtures, and accessories, and follow up during installation or renovation. Some work is done in offices or studios, while other tasks happen on site. In some jobs, they focus on residential spaces; in others, they work on commercial or institutional projects.