Plan durable nosings for every stair flight. Compare profiles, materials, and pricing with instant totals. Export CSV or PDF and keep site records organized.
| Stair width (m) | Steps | Projection (mm) | Thickness (mm) | Waste (%) | Total length (m) | Cost estimate |
|---|---|---|---|---|---|---|
| 1.20 | 12 | 25 | 3 | 7 | 15.41 | ≈ 100.17 |
| 1.10 | 18 | 30 | 4 | 10 | 21.78 | ≈ 170.00 |
Stair nosing improves slip resistance, protects tread edges from impact, and delivers a clean visual line on every step. In busy buildings, the nosing is often the first component to show wear, so selecting the right profile and material reduces maintenance and helps keep the walking surface consistent.
Quantity is governed mainly by stair width and the number of steps receiving nosing. Geometry still matters: tread depth and riser height influence pitch and comfort, while projection affects clearance and hazard risk. Keep measurements consistent by using the same reference points across the flight, then confirm the stair width at more than one location.
Many projects specify a projection range to balance traction and toe clearance. This calculator lets you define minimum and maximum projection limits, then flags whether your selection is inside that range. Use the limits from your project specification, product literature, or local requirements, and document the chosen value in your submittal.
Aluminum and stainless steel are common for durability, while rubber and PVC can add comfort and acoustic benefits. Brass is typically chosen for aesthetics and premium interiors. Profile also changes performance: square and L-shape designs are simple to install; bullnose styles can soften edges; photoluminescent options improve visibility in low light.
Waste covers cutting, miters, minor damage, and layout corrections. For straight flights with repeated lengths, 5–10% is common, but complex landings or mixed widths may need more. If the supplier sells standard bars, round your total length up to the nearest stock length and plan for offcuts.
The estimate multiplies total length (including waste) by unit price and applies a profile factor to reflect added complexity. It is a planning figure; taxes, fasteners, adhesives, and labor are not included. Use your procurement rate for unit price and adjust the profile selection to match the specified product.
The example below demonstrates how inputs translate into ordering length and budget planning.
It is the edge detail at the front of a tread. It can be a formed tread edge or an installed strip that improves grip, protects the tread, and creates a consistent step profile.
Start with your project specification or product datasheet. Then confirm the projection stays within your stated limits and does not create a trip hazard, especially on steep stairs.
These values help compute stair pitch. A steep pitch may require additional attention to slip resistance and visibility, even if your nosing quantity remains the same.
No. It uses a simple rectangular approximation based on width, projection, thickness, and steps. Real profiles may be hollow, ribbed, or reinforced, which changes the true mass.
For simple, repeated steps, 5–10% often works. Use a higher value if widths vary, landings are complex, or you expect more cutting and handling losses on site.
No. The cost is a material planning estimate. Add separate lines for adhesives, fasteners, trims, freight, and installation labor based on your local rates and method.
Yes for planning, but measure each unique edge length and use an equivalent “steps” count or adjust total length manually. Curves and segmented edges usually need higher waste.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.