Dog Legged Staircase Details | RCC Dog – Dog Legged Staircase Design Sheet

RCC Dog-legged staircase, the ensuing flights mainly lift in contrary directions. The two flights in plan are not isolated by a well. A landing is delivered comparable to the level at which the direction of the flight is regulated.

Method for designing a Dog-legged Staircase:

The stairs are divided into the following two types based on the direction along which a stair slab spreads out.

1. Stairs spanning horizontally

2. Stairs spanning vertically

Stairs spanning horizontally:

In this type of stairs, walls deliver adequate support to both sides.


Dead load of a step = ½ x T x R x 25

Dead load of waist slab = b x t x 25

Live load = LL (KN/m2)

Floor finish = suppose 0.5 KN/m

Stairs spanning horizontally:

In this case, the beam is sustained by both top and bottom of the flights.


Self weight of a step=1xR/2×25

Self weight of waist slab=1xtx25

Self weight of plan=1xtx25 [(R2+T2)/T]

Live Load=LL (KN/m2)

Floor finish = suppose 0.5 KN/m

To download this spreadsheet click on the link provided below.

Download Spreadsheet For RCC Dog-legged Staircase