Flight Stair

By Huu Khanh Nguyen · Updated October 28, 2026 · stair, unit

A stair of straight flights joined by landings, fitted to the floor-to-floor height: straight, L-shaped, U-shaped or turning twice or three times. Number of flights and the risers in each Quarter or half turn after each flight, left or right Flight construction and tread Starting step: straight, bullnose, bowed or curtail

Parameters

Name	Default	Unit
Riser Height	175	mm
Going	250	mm
Width	1000	mm
Flights	2
Risers In Flight 1	8
Turn After Flight 1	90	°
Risers In Flight 2	7
Turn After Flight 2	90	°
Risers In Flight 3	7
Turn After Flight 3	90	°
Risers In Flight 4	7
Landing Length Beyond Width	0	mm
Gap Between Flights	100	mm
Landing Thickness	147	mm
Floor To Floor Height	rise * [risers1, risers2, risers3, risers4].slice(0, flights).reduce((a, b) => a + b, 0)	mm