Stair details: What are the width, height and size of the stairs?

Reference dimensions of general stair step design

Nominal step height/mm step width/mm

(Maximum common value and minimum common value)

Residential175150 ~175 260 260 ~ 300

Primary and secondary schools150120 ~150 260 260 ~ 300

Office building160140 ~160 280 280 ~ 340

Kindergarten150120 ~140 260 260 ~ 280

Sanatorium 150 300

Theater and Auditorium160130 ~150 280 300 ~ 350

Stair detail drawing is a kind of complex drawing in architectural detail drawing, which includes three parts: stair plan, stair section and stair node detail drawing. Stair plan mainly expresses the location of stairwells, the size of platforms, the size of stairs, and the elevation of platforms and floors.

Stair profile mainly expresses the vertical scale of stairs, construction method, the position and height of stairwell doors and windows. The stair node diagram mainly expresses the detailed practices of stair handrails, steps and railings. ?

Stair Detail Stair Detail consists of three parts: stair plan, stair outline and stair node detail. 1. Stair plan: The detailed scale of stairs is usually 1: 50. Including the bottom floor plan of stairs, the standard floor plan of stairs, the top floor plan of stairs, etc. The ground floor plan is cut from the bottom of the first platform, and the first stair running section is disconnected (indicated by dashed lines inclined by 30 degrees and 45 degrees), so only half of the stairs are drawn, and the up-and-down direction and steps between the first floor and the second floor are indicated by arrows. As shown in Figure 20 above, there are 20 steps from the first floor to the second floor.