An elevation sketch is an orthographic projection—a two-dimensional representation of a three-dimensional space. For interior design, it is a two-dimensional drawing of a wall (or series of walls) with varying degrees of detail.

What is an interior elevation?

An interior elevation is a vertical projection of a wall or other surface inside a building.

What is a elevation view?

An elevation is a view from the side of an object, when drawing interior elevations, this would represent one of the walls. This would include any windows or doors as well as any built-in furniture that is in direct contact with the wall. This is a section view.