Stair design · Stair calculator
Stairs for your floor height
Pick the height from floor to floor. You get the number of risers and their height, the tread depth, the pitch, and that stair drawn straight, L-shaped, U-shaped and as a spiral: a plan with every step, its footprint, and what it’s made of, down to the bolts. Each opens in uCAD in 3D to change.
In metres
2.40 m14 risers of 17.1 cm2.45 m14 risers of 17.5 cm2.50 m14 risers of 17.9 cm2.55 m15 risers of 17 cm2.60 m15 risers of 17.3 cm2.65 m15 risers of 17.7 cm2.70 m15 risers of 18 cm2.75 m16 risers of 17.2 cm2.80 m16 risers of 17.5 cm2.85 m16 risers of 17.8 cm2.90 m17 risers of 17.1 cm2.95 m17 risers of 17.4 cm3.00 m17 risers of 17.6 cm3.05 m17 risers of 17.9 cm3.10 m18 risers of 17.2 cm3.15 m18 risers of 17.5 cm3.20 m18 risers of 17.8 cm3.25 m19 risers of 17.1 cm3.30 m19 risers of 17.4 cm3.35 m19 risers of 17.6 cm3.40 m19 risers of 17.9 cm
In feet and inches
8 ft14 risers of 6 7/8″8 ft 3 in14 risers of 7 1/16″8 ft 6 in15 risers of 6 13/16″8 ft 9 in15 risers of 7″9 ft16 risers of 6 3/4″9 ft 3 in16 risers of 6 15/16″9 ft 6 in17 risers of 6 11/16″9 ft 9 in17 risers of 6 7/8″10 ft17 risers of 7 1/16″10 ft 3 in18 risers of 6 13/16″10 ft 6 in18 risers of 7″10 ft 9 in19 risers of 6 13/16″11 ft19 risers of 6 15/16″11 ft 3 in20 risers of 6 3/4″11 ft 6 in20 risers of 6 7/8″11 ft 9 in20 risers of 7 1/16″12 ft21 risers of 6 7/8″
Floor to floor, not floor to ceiling
A stair climbs from one finished floor to the next: the ceiling height plus the floor above it, its joists or slab, its screed and flooring. That is usually 25–35 cm (10–14″) more than the ceiling height. Measure it at the stairwell if you can.
A height in between?
The stair calculator takes any height and width; or tell uCAD’s AI the height and the room the stair has to fit in, and it draws it.