Stair Design / Section Report

The site language selected from the top menu automatically changes this stair tool, its messages and the Word report language.

Preliminary check result

B - Technical / local authority review required

Stair layout

Use type

Floor height (mm)

Preferred riser (mm)

Tread / going (mm)

Clear stair width (mm)

Landing width (mm)

Landing depth (mm)

Headroom (mm)

Handrail height (mm)

Guard height (mm)

Stairwell / shaft width (mm)

Stairwell / shaft length (mm)

Stairwell opening / eye (mm)

Door opens to landing

Local code source

Code	en-GB
Country / profile	United Kingdom
Regulation profile	Approved Document K + Building Regulations
Max riser	190 mm
Min tread / going	250 mm
Min stair width	1200 mm
Min landing depth	1200 mm
Min headroom	2000 mm
Max vertical rise between landings	3000 mm
Max risers per flight	12
2R+G	600–650 mm
Note	Preliminary country-profile value. Local building authority, fire authority, accessibility rules and project type must be verified.

Result	B - Technical / local authority review required
Total risers	18
Actual riser	166.67 mm
Tread / going (mm)	250.0 mm
2R+G	583.3 mm
Risers per flight	[9, 9]
Vertical rise per flight	1500.0 mm, 1500.0 mm
Horizontal run per flight	2000.0 mm, 2000.0 mm
Required width	2800.0 mm
Required length	3200.0 mm
Width fit	OK
Length fit	OK

None

Comfort formula is outside the suggested range: 2R+G = 583.3 mm; suggested 600–650 mm.
Local municipality / fire / accessibility / project type source must also be verified.