Stair carpet cutting plan generator tool, generate a practical cutting plan for stairs, landings and halls from a standard carpet roll.
This calculator provides the total carpet required for your project plus a detailed explanation of how to cut your carpet into the required pieces allowing you to reduce waste and reduce overall cost, calculating how much carpet you need for stairs halls and landings is challenging and can be confusing, this stair carpet cutting plan tool makes the job easier.
If you require additional advice on how to measure for a stair, hall and landings carpet check out our guide here.
This stair carpet cutting plan generator helps you work out how much carpet you need for stairs, landings and halls, while showing a clear, practical cutting plan.Unlike basic calculators, this tool reflects real fitting practice by grouping stair pieces, using offcuts where possible, and keeping cuts simple and efficient.
Trimming tip: When measuring length or width, it’s advised to add at least 10cm to each size to allow for trimming when installing.
Roll
Stairs (optional)
Measure from the back of the tread to the bottom of the riser.Pile direction tip: stair pieces should normally run down the stairs.
Landing 1 (optional)
Landing 2 (optional)
Landing 3 (optional)
Hall (optional)
How this stair carpet cutting plan generator works
This tool generates a practical carpet cutting plan explanation based on the sizes you enter, using a standard carpet roll width.It is designed to reflect how carpet is normally planned and cut in real installations, not just simple area calculations.
The plan prioritises:
Keeping stair pieces grouped together where possible
Using offcuts from landings and halls before adding extra length
Minimising waste while keeping cuts simple and workable on site
Where possible, stairs are planned from one continuous length, which is then cut lengthways into strips, rather than cutting each step individually.
For general UK stair construction standards and dimensions, you can also refer to official UK stair design and measurement guidance from NHBC.
https://www.nhbc.co.uk/builders/products-and-services/tech-guidance
How to measure a stair carpet
Step length should be measured from the back of the tread (horizontal part) to the bottom of the riser (vertical part), following the shape of the step.
Stair pieces are assumed to run down the stairs, with the pile direction correct over the nosing.
When measuring length or width of a hall or landing, it’s advised to add at least 10 cm to each size to allow for trimming during installation.
Important notes
This is a guide only and should always be checked on site before cutting.
Staircases and layouts can vary — use your judgement where features such as winders, returns, or unusual shapes are involved.
If you’re unsure, always allow a little extra carpet.
You can also try our tile calculator, paint calculator and Laminate flooring calculator for other projects.
Related Flooring Calculators:
Explore Our free flooring and DIY Guides.
Understand how to calculate tile quantities, plan layouts, and avoid wastage with a clear step-by-step guide.
How to calculate tiles without wasting money
Learn the simplest method to measure any room accurately using UK flooring standards — perfect for carpet, laminate, vinyl, and trade work.
How to Measure a Room for Flooring
Not sure how to measure your staircase?
Our easy stair-measuring guide