Building Door Section 40mm Granite Floor Double Glass AutoCAD Drawing

This building door section AutoCAD DWG drawing provides a detailed façade cut section at 1:20 scale with precise construction specifications. The drawing includes reconstituted granite flooring of 40mm thickness, an RCC slab of 150mm, cement screed layers, and waterproofing treatment for long-term durability. It shows aluminum carpentry framing, a column for securing panels, and structural support connections. The design also features double tempered glass with an air chamber, ensuring thermal insulation and sound control. Integrated lighting system, suspended ceiling, and entrance illumination layout are clearly represented for professional planning and execution. This building door section drawing is suitable for commercial and residential façade detailing.