Interior design covers the structural and technical aspects of space — space planning, building codes, electrical and lighting design, materials specification, and CAD-driven technical drawings. Interior decoration focuses on the visual layer — colour, texture, lighting, soft furnishing, accessories, and the curation of objects in a space. Decoration is a faster route into the interiors industry (6-month certificate or 1-year diploma vs. 3-4 year interior design degree) and is well-suited to people who love styling spaces but don't want to engage with structural drawings or building codes.