A system, apparatus, and/or method is disclosed for designing a real-world space. For example, image data for an image of the space may be received. The image data may comprise a surface that is modifiable via an architectural material. Measuring rules for determining estimated real-world dimensions of the surface of the space may be executed. The measuring rules may be based on the received image data of the space. The estimated dimensions may comprise a length, width, and/or height of the surface of the space. A type and/or quantity of the architectural material for modifying the surface of the space may be determined based on the estimated dimensions of the surface of the space. A modified image of the space may be displayed in which the surface of the space is modified with the architectural material. The determined type and/or quantity of the architectural material may be displayed.