A grid is a series of intersecting lines used as a reference for creating a unit of measurement in any form of layout or design. In interior design, a grid system consists of lines running horizontally and vertically that divide a space into sections. This system allows the designer to evenly draw and arrange objects when space planning a room or other interior design project. Grid-based planning provides order and structure to the design process and helps the designer create a visually appealing and functional space. Grid-based planning also serves to guide and inform the designer decisions about furniture placement, wall art, and other elements. Grid-based planning is beneficial for any interior design project, allowing designers to create a space that is balanced and proportionate.