S

Figs 5-16: 16 risers 17/29, 17.2/28.1, storey height 2.75 m, width 1.0 m

All forms of stairs without landings cover practically the same plan area, but the distance from leaving the last step of a lower flight tc reaching the first step of the next flight upwards can be considerably shortened by using winders -> 6-10 or spiral stairs. Therefore these are preferred for multistorey buildings.

All forms of stairs without landings cover practically the same plan area, but the distance from leaving the last step of a lower flight tc reaching the first step of the next flight upwards can be considerably shortened by using winders -> 6-10 or spiral stairs. Therefore these are preferred for multistorey buildings.

Stairs with landings cover the plan area of a single flight + landing area - 1 tread area. /i^. Stairs with landings are necessary for storey heights 2.75 m. Landing width stair width. vl^

Stairs with landings cover the plan area of a single flight + landing area - 1 tread area. /i^. Stairs with landings are necessary for storey heights 2.75 m. Landing width stair width. vl^

Stair with three flights: expensive, impractical, wastes space

Diagonal first step and distorted steps save space

Minimum space requirement for ( transporting furniture

Stair with three flights: expensive, impractical, wastes space

K Space require' ment for stretcher

Spiral stairs: space ' requirement for stretcher

Diagonal first step and distorted steps save space

Curving the steps ir ) narrow stair shafts saves on landing width

Minimum space requirement for ( transporting furniture

K Space require' ment for stretcher

Spiral stairs: space ' requirement for stretcher

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