Measurement unit
Flight geometry
Feet, Metres, Inches, Centimetres, Millimetres
Staircase Calculator
Compare risers and treads and estimate stair flight quantities.
Open this toolA straight stair flight begins with the total rise and the space available for its run.
Compare riser and tread options using measured dimensions. Review the resulting geometry before estimating flight quantities, then account for landings and structural details separately.
Inputs and controls
Floor to floor rise
Flight geometry
Allowed range: 0.001 to 100000
Target maximum riser
Flight geometry · in
Allowed range: 0.1 to 30
Tread depth
Flight geometry · in
Allowed range: 0.1 to 50
Flight width
Flight geometry
Allowed range: 0.001 to 100000
Waist thickness
Optional concrete quantity · in
Allowed range: 0 to 30
Ordering allowance
Optional concrete quantity · %
Allowed range: 0 to 100
Added once to the measured requirement.
Concrete quote
Optional concrete quantity · PKR / m³
Allowed range: 0 to 1000000000
Optional. Enter your own supplier quote.
How to use
- Choose measurement unit. Enter floor to floor rise, target maximum riser, tread depth and flight width.
- Enter waist thickness, ordering allowance and concrete quote.
- Select Calculate estimate. Read the returned values alongside the assumptions below before copying, exporting or acting on the result.
Why use this tool
Seeing rise and run together helps you notice a layout problem before turning the staircase into a material order.
Before relying on the result
Straight flight geometry only, excluding landings. This is not a building code or structural compliance check.
Tool limitations
Straight flight geometry only, excluding landings. This is not a building code or structural compliance check.
Questions
Does the result confirm building code compliance?
No. Local requirements, headroom, handrails and structural design require a separate check. This is a straight flight geometry worksheet.
What should I check before using Staircase Calculator?
Check Measurement unit, Floor to floor rise, Target maximum riser and Tread depth. Use the exact units shown beside the controls and replace any example values with your own inputs.
Source page last modified: 2026-10-01T14:08:57+00:00. This profile describes the tool; use its page to run it.
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