stair proj continued.

Spiral Stair
- used where little space
- gaining popularity
- not safe












Circular Stairs
- irregular curve
- trapazoid shaped steps
- expensize

stair proj continued.

U stair
- one landing
- flights are parallel
- Wider the U wider the turn

stair proj continued.

Winder
- no landing
- pie shaped
- not very safe

stair proj continued.

Double L stair
- two landings
used when no space for L stair
EXPENSIVE

Stairs proj.

Straight Run
- most common
- no turns
- less expensive












L Stair
- open landing
- one 90 degree turn
used when little space is available