External Stair section detail cad drawing is given in this cad file. There is a 2d side view and section details are available. The stair section shows RCC detail includes 4 cm stone tile, 4 cm mortar, 15 cm RC slab, 5 cm blinding, 20 cm base-course and compacted soil. For more 3d or 2d stair, case designs visit our website cadbull.com. Download this 2d cad file now.