Casing - Three Step Drawings & Dimensions

Three Step Casing is an architectural feature that adds depth and visual interest to door and window frames. It is characterized by a flat profile with three stepped levels. Each step progressively steps out, creating a layered effect that catches the eye.

三步级饰（Three Step Casing）作为一种建筑细部设计，旨在为门框与窗框增添深度与视觉趣味。其特征为平面轮廓上设有三级阶梯式层次，每级阶梯逐层向外扩展，营造出引人瞩目的层次感。